https://wiki.librivox.org/index.php?title=Editing_Audio&feed=atom&action=historyEditing Audio - Revision history2024-03-29T08:56:50ZRevision history for this page on the wikiMediaWiki 1.41.0https://wiki.librivox.org/index.php?title=Editing_Audio&diff=26527&oldid=prevLordOider: /* Tips & Tricks */ added cross references2013-10-30T23:45:55Z<p><span dir="auto"><span class="autocomment">Tips & Tricks: </span> added cross references</span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Cleaning out noises during silences ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Cleaning out noises during silences ===</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Between sentences and paragraph, it is better if the silence is total. However, there are often small noises like mouth/lip noises, breathing or blowing into the microphone, chair creaking etc. all the more so as the reader takes the ooportunity of this silence to sit back, relax, breathe, or whatever. The basic command in audacity is '''Ctrl L''': select the silence, then hit '''Ctrl L''' to turn it into true silence. You can leave some noise, like the short breath right before the new sentence starts, so that we know this is no machine-generated audio-book.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Between sentences and paragraph, it is better if the silence is total. However, there are often small noises like mouth/lip noises, breathing or blowing into the microphone, chair creaking etc. all the more so as the reader takes the ooportunity of this silence to sit back, relax, breathe, or whatever. The basic command in audacity is '''Ctrl L''': select the silence, then hit '''Ctrl L''' to turn it into true silence. You can leave some noise, like the short breath right before the new sentence starts, so that we know this is no machine-generated audio-book.</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">For removing general background noise, see: [[Noisecleaning With Pics]]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Trimming silences to a consistent value ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Trimming silences to a consistent value ===</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For the perfectionist: the selection should start and end with a zero value and also with a rising signal, and the cursor should also be placed on a zero with a rising signal. With this technique, you can now edit out (or in) not only sentences or words, but individual syllables. Try shortening an 'aaaah', or stretching a 'oh'.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For the perfectionist: the selection should start and end with a zero value and also with a rising signal, and the cursor should also be placed on a zero with a rising signal. With this technique, you can now edit out (or in) not only sentences or words, but individual syllables. Try shortening an 'aaaah', or stretching a 'oh'.</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">See also: [[Removing Peaks]]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Joining several MP3 files into one ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Joining several MP3 files into one ===</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> cat 1.mp3 2.mp3 3.mp3 > out.mp3</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> cat 1.mp3 2.mp3 3.mp3 > out.mp3</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Since OS X is built on top of a Unix kernel, the ''cat'' command certainly is available from the OS X command line as well.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Alternatively, you could use the [http://mp3wrap.sourceforge.net/ MP3Wrap] program. It's released under the GPL and is free to download. Versions are available for Linux and Windows.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Alternatively, you could use the [http://mp3wrap.sourceforge.net/ MP3Wrap] program. It's released under the GPL and is free to download. Versions are available for Linux and Windows.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">''Does anyone know of an equivalent for the Mac?''</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">To overlay tracks</ins>, <ins style="font-weight: bold; text-decoration: none;">see: [[Merging Tracks]]</ins></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Since OS X is built on top of a Unix kernel</del>, <del style="font-weight: bold; text-decoration: none;">the ''cat'' command certainly is available from the OS X command line as well.</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Splitting an MP3 file into shorter files ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Splitting an MP3 file into shorter files ===</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">:''Main page: [[How To Split With Mp3Splt]]''</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If you need to split MP3 files into shorter recordings, the [http://mp3splt.sourceforge.net/ Mp3splt] program should work. It's released under the GPL and is free to download. Versions are available for Linux, Mac and Windows, and there are command-line and GUI (graphical user interface - point & click) versions available.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If you need to split MP3 files into shorter recordings, the [http://mp3splt.sourceforge.net/ Mp3splt] program should work. It's released under the GPL and is free to download. Versions are available for Linux, Mac and Windows, and there are command-line and GUI (graphical user interface - point & click) versions available.</div></td></tr>
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</table>LordOiderhttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=26465&oldid=prevLordOider: /* If you created a sound spike after your mistakes. */ link fixed2013-10-29T23:22:05Z<p><span dir="auto"><span class="autocomment">If you created a sound spike after your mistakes.: </span> link fixed</span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==== If you created a sound spike after your mistakes. ====</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==== If you created a sound spike after your mistakes. ====</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>:<i>Main Page: [[Deleting <del style="font-weight: bold; text-decoration: none;">errors </del>in Audacity]] and [[Alternative Editing Method]]</i></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>:<i>Main Page: [[Deleting <ins style="font-weight: bold; text-decoration: none;">Errors </ins>in Audacity]] and [[Alternative Editing Method]]</i></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is possible to edit your file without listening to the whole thing to find the mistakes; you can just search for the editing spikes. When you find a spike, listen through to the recording around it, and delete the mistake including the spike. '''Make sure you find someone to proof-listen your recording if you don't listen through it yourself during editing'''</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is possible to edit your file without listening to the whole thing to find the mistakes; you can just search for the editing spikes. When you find a spike, listen through to the recording around it, and delete the mistake including the spike. '''Make sure you find someone to proof-listen your recording if you don't listen through it yourself during editing'''</div></td></tr>
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</table>LordOiderhttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=26464&oldid=prevLordOider: removed link to deleted page2013-10-29T23:16:59Z<p>removed link to deleted page</p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">How to, why to, tips & tricks</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">== Why To ==</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">See [[Audio Processing Concepts]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">== How To ==</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>You will make mistakes in your reading, there is no doubt about that. Don't worry about the mistakes too much as you're recording, because they can be edited out. You can also make adjustments to volume, and remove small amounts of background noise in the editing process.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>You will make mistakes in your reading, there is no doubt about that. Don't worry about the mistakes too much as you're recording, because they can be edited out. You can also make adjustments to volume, and remove small amounts of background noise in the editing process.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>LordOiderhttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=22063&oldid=prevTriciaG: /* While Recording */2013-04-01T14:38:48Z<p><span dir="auto"><span class="autocomment">While Recording</span></span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:38, 1 April 2013</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10">Line 10:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are a few things that you can do while you're recording to make the editing process easier later on.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are a few things that you can do while you're recording to make the editing process easier later on.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># As soon as you make a mistake <del style="font-weight: bold; text-decoration: none;">tap the mic </del>three times, or say a really loud "MISTAKE!". Then repeat the sentence that you goofed up. The point is to create a spike in the sound waves of your editing software. This allows you to more easily find your mistakes in the editing process. [Some people with delicate mics, just click their tongue twice; this also gives nice easily seen spikes]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div># As soon as you make a mistake <ins style="font-weight: bold; text-decoration: none;">clap your hands </ins>three times, or say a really loud "MISTAKE!". Then repeat the sentence that you goofed up. The point is to create a spike in the sound waves of your editing software. This allows you to more easily find your mistakes in the editing process. [Some people with delicate mics, just click their tongue twice; this also gives nice easily seen spikes]</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Make a test recording to be sure your mic and editing software is set at the correct volume before recording the text. It is possible to alter the volume later, but raising the volume too much will also amplify the background noise.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Make a test recording to be sure your mic and editing software is set at the correct volume before recording the text. It is possible to alter the volume later, but raising the volume too much will also amplify the background noise.</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Don't stop the recording for anything. If you need to get a drink of water, let it record through that. Need to clear your throat? Keep recording so you end up with one long track. This will prevent inconsistencies in sound or volume. If you stop recording and return later, it will probably be obvious to the listener that you stopped and started again later.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Don't stop the recording for anything. If you need to get a drink of water, let it record through that. Need to clear your throat? Keep recording so you end up with one long track. This will prevent inconsistencies in sound or volume. If you stop recording and return later, it will probably be obvious to the listener that you stopped and started again later.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>TriciaGhttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=5721&oldid=prevJo at 21:31, 2 January 20112011-01-02T21:31:32Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:31, 2 January 2011</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Trimming silences to a consistent value ===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Trimming silences to a consistent value ===</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>You may want to make sure silences within paragraphs all have roughly the same duration (e.g. all between 0.5s and 1s), and all silences between paragraphs another duration (e.g. all between 1.5s and 3s). Apparently, Audacity does not have an automated command to trim all silences at the same length. The basic solution is to select the amount of silence you want removed, and cut it '''Ctrl X'''. Conversely, to increase the duration of a silence, select the amount of silence you need to add, hit '''Ctrl C''' (copy), then '''Ctrl V''' (paste<del style="font-weight: bold; text-decoration: none;">) twice (one in place, then duplicate</del>).</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>You may want to make sure silences within paragraphs all have roughly the same duration (e.g. all between 0.5s and 1s), and all silences between paragraphs another duration (e.g. all between 1.5s and 3s). Apparently, Audacity does not have an automated command to trim all silences at the same length. The basic solution is to select the amount of silence you want removed, and cut it '''Ctrl X'''. Conversely, to increase the duration of a silence, select the amount of silence you need to add, hit '''Ctrl C''' (copy)<ins style="font-weight: bold; text-decoration: none;">, position the cursor where you want to add silence</ins>, then <ins style="font-weight: bold; text-decoration: none;">hit </ins>'''Ctrl V''' (paste).</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Anyone has something quicker ?</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Anyone has something quicker ?</div></td></tr>
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</table>Johttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=5719&oldid=prevPhilchenevert: /* While Recording */2011-01-02T19:38:05Z<p><span dir="auto"><span class="autocomment">While Recording</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:38, 2 January 2011</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l10">Line 10:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are a few things that you can do while you're recording to make the editing process easier later on.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>There are a few things that you can do while you're recording to make the editing process easier later on.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># As soon as you make a mistake tap the mic three times, or say a really loud "MISTAKE!". Then repeat the sentence that you goofed up. The point is to create a spike in the sound waves of your editing software. This allows you to more easily find your mistakes in the editing process.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div># As soon as you make a mistake tap the mic three times, or say a really loud "MISTAKE!". Then repeat the sentence that you goofed up. The point is to create a spike in the sound waves of your editing software. This allows you to more easily find your mistakes in the editing process. <ins style="font-weight: bold; text-decoration: none;">[Some people with delicate mics, just click their tongue twice; this also gives nice easily seen spikes]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Make a test recording to be sure your mic and editing software is set at the correct volume before recording the text. It is possible to alter the volume later, but raising the volume too much will also amplify the background noise.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Make a test recording to be sure your mic and editing software is set at the correct volume before recording the text. It is possible to alter the volume later, but raising the volume too much will also amplify the background noise.</div></td></tr>
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</table>Philcheneverthttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=1545&oldid=prevJc: /* Joining several MP3 files into one */2009-05-23T04:27:44Z<p><span dir="auto"><span class="autocomment">Joining several MP3 files into one</span></span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 04:27, 23 May 2009</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l50">Line 50:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If you have several MP3 files that you wish to convert into one, long file (eg if you wish to combine a set of chapter files into a single book file), there are a couple of ways that this can be done.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If you have several MP3 files that you wish to convert into one, long file (eg if you wish to combine a set of chapter files into a single book file), there are a couple of ways that this can be done.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>If you are using Linux or a Mac with OS X, you can use the <del style="font-weight: bold; text-decoration: none;">{{{</del>cat<del style="font-weight: bold; text-decoration: none;">}}} </del>command from a terminal. To join the contents of files <del style="font-weight: bold; text-decoration: none;">{{{</del>1.mp3<del style="font-weight: bold; text-decoration: none;">}}}</del>, <del style="font-weight: bold; text-decoration: none;">{{{</del>2.mp3<del style="font-weight: bold; text-decoration: none;">}}}</del>, and <del style="font-weight: bold; text-decoration: none;">{{{</del>3.mp3<del style="font-weight: bold; text-decoration: none;">}}} </del>into one file named <del style="font-weight: bold; text-decoration: none;">{{{</del>out.mp3<del style="font-weight: bold; text-decoration: none;">}}}</del>:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>If you are using Linux or a Mac with OS X, you can use the <ins style="font-weight: bold; text-decoration: none;"><b></ins>cat<ins style="font-weight: bold; text-decoration: none;"></b> </ins>command from a terminal. To join the contents of files <ins style="font-weight: bold; text-decoration: none;"><b></ins>1.mp3<ins style="font-weight: bold; text-decoration: none;"></b></ins>, <ins style="font-weight: bold; text-decoration: none;"><b></ins>2.mp3<ins style="font-weight: bold; text-decoration: none;"></b></ins>, and <ins style="font-weight: bold; text-decoration: none;"><b></ins>3.mp3<ins style="font-weight: bold; text-decoration: none;"></b> </ins>into one file named <ins style="font-weight: bold; text-decoration: none;"><b></ins>out.mp3<ins style="font-weight: bold; text-decoration: none;"></b></ins>:</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">{{{</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins>cat 1.mp3 2.mp3 3.mp3 > out.mp3</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>cat 1.mp3 2.mp3 3.mp3 > out.mp3</div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">}}}</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Alternatively, you could use the [http://mp3wrap.sourceforge.net/ MP3Wrap] program. It's released under the GPL and is free to download. Versions are available for Linux and Windows.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Alternatively, you could use the [http://mp3wrap.sourceforge.net/ MP3Wrap] program. It's released under the GPL and is free to download. Versions are available for Linux and Windows.</div></td></tr>
</table>Jchttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=1521&oldid=prevJc: /* If you created a sound spike after your mistakes. */2009-05-22T20:40:12Z<p><span dir="auto"><span class="autocomment">If you created a sound spike after your mistakes.</span></span></p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>:<i>Main Page: [[Deleting <del style="font-weight: bold; text-decoration: none;">Errors </del>in Audacity]] and [[Alternative Editing Method]]</i></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>:<i>Main Page: [[Deleting <ins style="font-weight: bold; text-decoration: none;">errors </ins>in Audacity]] and [[Alternative Editing Method]]</i></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is possible to edit your file without listening to the whole thing to find the mistakes; you can just search for the editing spikes. When you find a spike, listen through to the recording around it, and delete the mistake including the spike. '''Make sure you find someone to proof-listen your recording if you don't listen through it yourself during editing'''</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It is possible to edit your file without listening to the whole thing to find the mistakes; you can just search for the editing spikes. When you find a spike, listen through to the recording around it, and delete the mistake including the spike. '''Make sure you find someone to proof-listen your recording if you don't listen through it yourself during editing'''</div></td></tr>
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</table>Jchttps://wiki.librivox.org/index.php?title=Editing_Audio&diff=1500&oldid=prevJc: New page: How to, why to, tips & tricks == Why To == See Audio Processing Concepts == How To == You will make mistakes in your reading, there is no doubt about that. Don't worry about the mist...2009-05-21T19:19:09Z<p>New page: How to, why to, tips & tricks == Why To == See <a href="/index.php?title=Audio_Processing_Concepts&action=edit&redlink=1" class="new" title="Audio Processing Concepts (page does not exist)">Audio Processing Concepts</a> == How To == You will make mistakes in your reading, there is no doubt about that. Don't worry about the mist...</p>
<p><b>New page</b></p><div>How to, why to, tips & tricks<br />
<br />
== Why To ==<br />
See [[Audio Processing Concepts]]<br />
<br />
== How To ==<br />
You will make mistakes in your reading, there is no doubt about that. Don't worry about the mistakes too much as you're recording, because they can be edited out. You can also make adjustments to volume, and remove small amounts of background noise in the editing process.<br />
<br />
=== While Recording ===<br />
There are a few things that you can do while you're recording to make the editing process easier later on.<br />
<br />
# As soon as you make a mistake tap the mic three times, or say a really loud "MISTAKE!". Then repeat the sentence that you goofed up. The point is to create a spike in the sound waves of your editing software. This allows you to more easily find your mistakes in the editing process.<br />
<br />
# Make a test recording to be sure your mic and editing software is set at the correct volume before recording the text. It is possible to alter the volume later, but raising the volume too much will also amplify the background noise.<br />
<br />
# Don't stop the recording for anything. If you need to get a drink of water, let it record through that. Need to clear your throat? Keep recording so you end up with one long track. This will prevent inconsistencies in sound or volume. If you stop recording and return later, it will probably be obvious to the listener that you stopped and started again later.<br />
<br />
=== Editing ===<br />
The process of editing simply involves removing the pieces of your recording that shouldn't be there. Read the instructions for the recording software that you're using. It should tell you how to remove sections of a track, and edit out pieces.<br />
<br />
Try to avoid too much processing through filters on your recording. Excessive alterations to the sound can sometimes cause additions like a metallic quality to your recording. A little background noise is OK. If you're unsure how much is too much, ask a fellow volunteer to lend their ear. See [:ImproveYourRecording:How to Improve Your Recording] for more tips.<br />
<br />
==== If you created a sound spike after your mistakes. ====<br />
:<i>Main Page: [[Deleting Errors in Audacity]] and [[Alternative Editing Method]]</i><br />
It is possible to edit your file without listening to the whole thing to find the mistakes; you can just search for the editing spikes. When you find a spike, listen through to the recording around it, and delete the mistake including the spike. '''Make sure you find someone to proof-listen your recording if you don't listen through it yourself during editing'''<br />
<br />
==== Common Keyboard Shortcuts For Audacity ====<br />
<br />
'''Ctrl S''' = save '''Ctrl C''' = copy '''Ctrl V''' = paste '''Ctrl Z''' = undo '''Ctrl N''' = new '''Ctrl A''' = select all (selects the whole file) '''Ctrl O''' = open<br />
<br />
'''Ctrl W''' = close '''Space bar''' = play and pause<br />
<br />
== Tips & Tricks ==<br />
=== Cleaning out noises during silences ===<br />
Between sentences and paragraph, it is better if the silence is total. However, there are often small noises like mouth/lip noises, breathing or blowing into the microphone, chair creaking etc. all the more so as the reader takes the ooportunity of this silence to sit back, relax, breathe, or whatever. The basic command in audacity is '''Ctrl L''': select the silence, then hit '''Ctrl L''' to turn it into true silence. You can leave some noise, like the short breath right before the new sentence starts, so that we know this is no machine-generated audio-book.<br />
<br />
=== Trimming silences to a consistent value ===<br />
You may want to make sure silences within paragraphs all have roughly the same duration (e.g. all between 0.5s and 1s), and all silences between paragraphs another duration (e.g. all between 1.5s and 3s). Apparently, Audacity does not have an automated command to trim all silences at the same length. The basic solution is to select the amount of silence you want removed, and cut it '''Ctrl X'''. Conversely, to increase the duration of a silence, select the amount of silence you need to add, hit '''Ctrl C''' (copy), then '''Ctrl V''' (paste) twice (one in place, then duplicate).<br />
<br />
Anyone has something quicker ?<br />
<br />
=== Making sure the edits are transparent ===<br />
Sometimes, the 'edges' of an edited portion make a distinctive 'clicking' sound. When you zoom in, you see that there is a discontinuity in the signal (a sharp edge). To remove this, you need to cut (or add) signal so that the transition is smooth. The easiest way to do it is to start and end all your selections (when you want to cut or when you want to paste) at samples where the signal has a zero value, and place the cursor (in case you want to paste) at another sample having a zero value. That way, you ensure that the signal will have a zero value on both sides, thus ensuring continuity. Zero values are not hard to find: there are several hundreds of them each second.<br />
<br />
In Audacity, Edit > Find Zero Crossings, or the Z key, moves the edges of the selection slightly until they are close to a zero crossing.<br />
<br />
For the perfectionist: the selection should start and end with a zero value and also with a rising signal, and the cursor should also be placed on a zero with a rising signal. With this technique, you can now edit out (or in) not only sentences or words, but individual syllables. Try shortening an 'aaaah', or stretching a 'oh'.<br />
<br />
=== Joining several MP3 files into one ===<br />
If you have several MP3 files that you wish to convert into one, long file (eg if you wish to combine a set of chapter files into a single book file), there are a couple of ways that this can be done.<br />
<br />
If you are using Linux or a Mac with OS X, you can use the {{{cat}}} command from a terminal. To join the contents of files {{{1.mp3}}}, {{{2.mp3}}}, and {{{3.mp3}}} into one file named {{{out.mp3}}}:<br />
<br />
{{{<br />
cat 1.mp3 2.mp3 3.mp3 > out.mp3<br />
}}}<br />
<br />
Alternatively, you could use the [http://mp3wrap.sourceforge.net/ MP3Wrap] program. It's released under the GPL and is free to download. Versions are available for Linux and Windows.<br />
<br />
''Does anyone know of an equivalent for the Mac?''<br />
<br />
Since OS X is built on top of a Unix kernel, the ''cat'' command certainly is available from the OS X command line as well.<br />
<br />
=== Splitting an MP3 file into shorter files ===<br />
If you need to split MP3 files into shorter recordings, the [http://mp3splt.sourceforge.net/ Mp3splt] program should work. It's released under the GPL and is free to download. Versions are available for Linux, Mac and Windows, and there are command-line and GUI (graphical user interface - point & click) versions available.<br />
<br />
=== Using a Drawing Tablet ===<br />
Using a mouse for extended periods of time to edit can be painful and uncomfortable. If you have a drawing tablet, consider using it for editing. Set any function buttons to the keyboard shortcuts for cutting sections of audio, and saving. This saves time, and discomfort.<br />
<br />
'''Example: ''' Kristin uses Audacity and a Wacom drawing tablet. There are two buttons on the pen that she has set to CTRL+X (''cut'' in Audacity), and SPACE (''play/pause'' in Audacity). One of the function buttons on her drawing tablet is set to CTRL+S (''save''). Deleting a piece of audio is a simple drag of the pen to highlight, and click of a button on the pen. She then hits the second button to resume play, listening for more mistakes.</div>Jc