https://wiki.librivox.org/index.php?title=Recording_Troubleshooter&feed=atom&action=historyRecording Troubleshooter - Revision history2024-03-29T09:02:10ZRevision history for this page on the wikiMediaWiki 1.41.0https://wiki.librivox.org/index.php?title=Recording_Troubleshooter&diff=1803&oldid=prevJc: New page: == Muffled recording == :'''Is your mic plugged in properly?''' Yesterday I started recording and my test recording sounded muffled. I almost panicked..I need a new mic!! I have no money! ...2009-06-06T23:59:32Z<p>New page: == Muffled recording == :'''Is your mic plugged in properly?''' Yesterday I started recording and my test recording sounded muffled. I almost panicked..I need a new mic!! I have no money! ...</p>
<p><b>New page</b></p><div>== Muffled recording ==<br />
:'''Is your mic plugged in properly?'''<br />
Yesterday I started recording and my test recording sounded muffled. I<br />
almost panicked..I need a new mic!! I have no money! However, when I<br />
unplugged and re-plugged the mic in, the recording was fine. <br />
<br />
== Static with USB Mic on MacBook Pro ==<br />
<br />
Oooh, ooooh!<br />
I solved my static problem! I think the difference is, on other<br />
computers (like our Mac mini at home) Garage Band is smart enough to<br />
figure out that if you've set a USB mic as your audio input in your<br />
system settings, the USB mic is what you want to use to record in<br />
Garage Band (seems reasonable, right?).<br />
<br />
With the MacBook Pro, however, I finally realized (by snapping my fingers in different places around the computer and mic) that it was for some reason still using its built-in mic instead of the USB mic to record what I was saying, and the built-in mic is static-y.<br />
<br />
So to fix the problem, you have to make sure that in<br />
* System Preferences -> sound -> input<br />
* you have selected your USB mic...<br />
* BUT then in Garage Band you *also* have to go to<br />
* Garage Band -> preferences -> audio/MIDI<br />
* and change the audio input option to your USB mic.<br />
<br />
Yay! So glad that's fixed!<br />
More recordings coming soon...<br />
<br />
Meredith<br />
<br />
== My recording has missing segments, it skips. ==<br />
<br />
One cause is that your hard disk drive is too slow to keep up with the data<br />
flow rate from the recording software. That is, your recording<br />
program is shoving data at the drive faster than the drive can write<br />
it to the disk. The only thing the drive can do when it gets<br />
overloaded is throw away data until it catches up. This situation is<br />
more likely to be true the older your drive is (this was observed in a<br />
hard drive manufactured about 1995). This will be more of a problem<br />
if you're recording to [[Glossary#Wave| Wave]] audio format at the CD<br />
audio standard (stereo and with a sample frequency of 44,100 Hz and<br />
bit depth of 16 bits per sample), which has a high data flow rate,<br />
than if you're recording directly to, say, [[Glossary#MP3| MP3]] format<br />
at 32 Kbps.<br />
<br />
Unfortunately, the only solution is to buy a faster hard drive.<br />
<br />
Another cause may be that your hard drive is not configured to use DMA<br />
(Direct Memory Access), which allows faster data transfer to the drive.<br />
This is something you can check and configure. <br />
<br />
== My recording has a very noticeable background buzz ==<br />
If you are recording with a laptop, make sure that you are on battery power while recording. Sometimes, being on AC causes an electronic buzz while recording.</div>Jc