https://wiki.librivox.org/index.php?title=Silence_Removal&feed=atom&action=historySilence Removal - Revision history2024-03-29T15:12:55ZRevision history for this page on the wikiMediaWiki 1.41.0https://wiki.librivox.org/index.php?title=Silence_Removal&diff=17101&oldid=prevTriciaG at 23:06, 3 November 20122012-11-03T23:06:44Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<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 23:06, 3 November 2012</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l4">Line 4:</td>
<td colspan="2" class="diff-lineno">Line 4:</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>shorten them to 2.3 seconds.</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>shorten them to 2.3 seconds.</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>[[Software We Use#audacity|Audacity]] has a [http://manual.audacityteam.org/man/Truncate_Silence<del style="font-weight: bold; text-decoration: none;">|</del>Truncate Silence] effect that can be used to shorten gaps. The dialog box lets you specify the settings to be applied when truncating the silence. </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>[[Software We Use#audacity|Audacity]] has a [http://manual.audacityteam.org/man/Truncate_Silence Truncate Silence] effect that can be used to shorten gaps. The dialog box lets you specify the settings to be applied when truncating the silence. </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>[[Image:TruncateSilence.png]]</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>[[Image:TruncateSilence.png]]</div></td></tr>
</table>TriciaGhttps://wiki.librivox.org/index.php?title=Silence_Removal&diff=17100&oldid=prevTriciaG at 23:05, 3 November 20122012-11-03T23:05:13Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<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 23:05, 3 November 2012</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l4">Line 4:</td>
<td colspan="2" class="diff-lineno">Line 4:</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>shorten them to 2.3 seconds.</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>shorten them to 2.3 seconds.</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>[[Software We Use#audacity|Audacity]] has a [http://manual.audacityteam.org/man/Truncate_Silence| Truncate Silence] effect that can be used to shorten gaps. The dialog box lets you specify the settings to be applied when truncating the silence. </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>[[Software We Use#audacity|Audacity]] has a [http://manual.audacityteam.org/man/Truncate_Silence|Truncate Silence] effect that can be used to shorten gaps. The dialog box lets you specify the settings to be applied when truncating the silence. </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>[[Image:TruncateSilence.png]]</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>[[Image:TruncateSilence.png]]</div></td></tr>
</table>TriciaGhttps://wiki.librivox.org/index.php?title=Silence_Removal&diff=17099&oldid=prevTriciaG at 23:04, 3 November 20122012-11-03T23:04:13Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<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 23:04, 3 November 2012</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l4">Line 4:</td>
<td colspan="2" class="diff-lineno">Line 4:</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>shorten them to 2.3 seconds.</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>shorten them to 2.3 seconds.</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>[[Software We Use#audacity|Audacity]] has a [http://manual.audacityteam.org/<del style="font-weight: bold; text-decoration: none;">index.php?title=</del>Truncate_Silence| Truncate Silence] effect that can be used to shorten gaps. The dialog box lets you specify the settings to be applied when truncating the silence. </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>[[Software We Use#audacity|Audacity]] has a [http://manual.audacityteam.org/<ins style="font-weight: bold; text-decoration: none;">man/</ins>Truncate_Silence| Truncate Silence] effect that can be used to shorten gaps. The dialog box lets you specify the settings to be applied when truncating the silence. </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>[[Image:TruncateSilence.png]]</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>[[Image:TruncateSilence.png]]</div></td></tr>
<!-- diff cache key librivox_mediawiki:diff:1.41:old-6191:rev-17099:php=table -->
</table>TriciaGhttps://wiki.librivox.org/index.php?title=Silence_Removal&diff=6191&oldid=prevJc: New page: One of the things proof-listeners look out for is long pauses. Since what qualifies as "too long" for a pause depends on the context, correcting pauses which ''are'' too long may not be am...2011-03-04T19:34:13Z<p>New page: One of the things proof-listeners look out for is long pauses. Since what qualifies as "too long" for a pause depends on the context, correcting pauses which ''are'' too long may not be am...</p>
<p><b>New page</b></p><div>One of the things proof-listeners look out for is long pauses. Since what qualifies as "too long" for a pause depends on the context, correcting pauses which ''are'' too long may not be amenable to automation.<br />
<br />
[[Software We Use#cool_edit|Cool Edit]], and likely [[Software We Use#audition|Audition]], has a Delete Silence tool: it can be set to look for gaps exceeding a certain amount and then trim those gaps to a specified length. For example, look for gaps longer than 5.4 seconds and<br />
shorten them to 2.3 seconds.<br />
<br />
[[Software We Use#audacity|Audacity]] has a [http://manual.audacityteam.org/index.php?title=Truncate_Silence| Truncate Silence] effect that can be used to shorten gaps. The dialog box lets you specify the settings to be applied when truncating the silence. <br />
<br />
[[Image:TruncateSilence.png]]<br />
<br />
<b>Min silence duration</b>: duration of silence above which silence will start being truncated. Resulting silence will never be below this value. <br />
<br />
<b>Max silence duration</b>: maximum duration of silence allowed after truncating. <br />
<br />
<b>Silence Compression</b>: factor by which silence is to be reduced. For example, specifying 2:1 will reduce a 1-second silence to 0.5 second. <br />
<br />
<b>Threshold for silence</b>: volume below which audio is considered silence.<br />
<br />
<br />
== How This Works == <br />
In Audacity: <br />
<br />
Any part of the track where the volume is below the <i>Threshold for silence</i> is considered silence. The default is -40dB, but if your background noise is loud, you may want to noiseclean first or increase the threshold. <br />
<br />
<b>How do you know the volume of your silence?</b> Select a section of silence, then do <code>Effects > Amplify</code>. Look at the value in the <code>Amplification (dB)</code> box. This is how much the silence needs to be amplified to be at 0, so your silence is 0-[the number]. Now select the threshold dB right above your silence dB. <br />
<br />
EX: if the number is 32, then your silence is at -32. Your threshold should be -30. <br />
<br />
Silence longer than the the <i>Min silence duration</i> will get shortened in the proportion indicated in the <i>Silence Compression</i> field. The resulting silence will be no shorter than the <i>Min silence duration</i> and no longer than the <i>Max silence duration</i>. <br />
<br />
<b>If Min and Max silence durations are the same value</b> all silence above the length specified will be cut down to that length. <br />
<br />
Silence shorter than the <i>Min silence duration</i> are not touched at all.</div>Jc