Hello,
I was wondering if someone could help me. I’m trying to export a 2hr 53m audio file from audacity but it’s only exporting the first hour and comes out as a 6.83GB file. I’m exporting as a WAV file so I can use it in Sony Vegas my project rate is 88200Hz and is 32bit. I’m not sure why this is happening.
Thank you if you can help.
Maybe not enough free-space on your hard-drive … http://manual.audacityteam.org/man/faq_recording_how_to_s.html#remaining
WAV files are limited to either 2GB or 4GB. I’m not sure where you got your 6GB file from.
88200Hz and is 32bit.
That’s a really unusual file format. Is there a reason you picked it? I’d be leery that other programs wouldn’t accept it.
88KHz sampling rate will reproduce sound up to about 44KHz. Human hearing stops at 20KHz. 32Bit depth greatly exceeds analog hardware sound range. Even with volume management and pitch shifting you wouldn’t need that.
What’s the show that requires such extreme settings?
Koz
Try FLAC. FLAC is lossless, there’s no file size limit, the files are smaller since they are compressed, and Vegas can accept the FLAC and convert to whatever audio/video format you need (as long as it’s supported by Vegas).
With FLAC you’ll be “limited” to 24-bits but I don’t know of any standard audio/video formats that are greater than 24-bits and as Koz says, that’s more than good-enough.
Just make sure you peaks don’t exceed 0dB. 32-bit floating point can go over 0dB, but “regular” 16 and 24-bit integer formats are limited to 0dB (as are 32-bit integer files). Your “final” audio/video file shouldn’t exceed 0dB even if the file format supports it because DACs are hard limited to 0dB. (You can run the Amplify or Normalize effect to make sure your peaks don’t exceed 0dB before exporting to an integer format.)
48kHz is standard for most audio/video formats and Blu-Ray also supports 96kHz and 192kHz.
…3 hours at 48khz/24-bit will put you at about 3GB, which exceeds the “official” 2GB WAV limit, but it’s under the 4GB “unofficial” limit and it would probably work.
If you happen to be making a DVD, 3GB of uncompressed audio fills-up about 3/4ths of the (single layer) DVD, leaving very little room for the video. And obviously, your 32-bit/88kHz file won’t fit on a single-layer DVD.
Sorry, I copied and pasted my question from my friends message to me. So basically it’s for a Youtube channel and we use audacity to record our voices and then put them into Sony Vegas along with the video. As far as I’m concerned he’s always used those settings. He had this problem before but he managed to get it working but simply just pressing Ctrl + A then exporting but that doesn’t seem to work now. Is there a way to reduce those settings after the audio has been recorded? My settings are stero 44100HZ and 32-bit and it seems to be working fine.
Is it possible to Change the Hz and Bit after the recording?
And thank you for the information about the 16 and 24 bit, I had no idea and was using 32 bit floating and would get peaks a lot of the time so thank you for that.
Audacity runs internally at 32-floating so effects and filters that accidentally cause the sound to “overload” don’t create permanent damage. The sound is still there. Just reduce the volume and keep right on going.
In the other formats, one overload and it’s the end of the world.
Koz
You can set the sample rate with the little Window at Audacity lower left. 44100 is used in AudioCDs. 48000 is used in video. Many studios run at 96000/24bit against any possible damage to a studio recording caused by processing, corrections and finishing.
If you use the default WAV export, that will give you 16-bit. You can have other variations with File > Export Audio > Other Uncompressed Files.
Koz
4 GB is the “official” limit. Applications that don’t support more than 2 GB are “unofficial”.
Gale