Export AAC

Help for Audacity on Windows.
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Please state which version of Windows you are using,
and the exact three-section version number of Audacity from "Help menu > About Audacity".

Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
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hank0
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Joined: Tue Dec 30, 2014 9:35 pm
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Export AAC

Post by hank0 » Tue Dec 30, 2014 10:19 pm

Hi, I have this problem with version 2.0.6 in win7, when I make export in AAC with standard M4A(AAC) Files (FFmpeg) of Audacity with the installer or the portable version: any bitrates I force, the audio of output is always 192 Kbps, analyzed with software as MediaInfo and others. I have download audacity and ffmpeg-win-2.2.2 from your site. I have tried in another pc with the same result. The only way to vary the bitrate of output with AAC is the Custom FFmpeg Export.
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steve
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Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Export AAC

Post by steve » Tue Dec 30, 2014 10:35 pm

This is a known problem and is noted in the Audacity 2.0.6 release notes:
http://wiki.audacityteam.org/wiki/Relea ... 8FFmpeg.29
M4A (AAC) exports: The Quality Slider in "Specify AAC Options" has no effect if the FFmpeg library is built with the libvo-aac encoder, as are recommended builds of FFmpeg for Windows and Mac OS X. Workaround: ...[snip]... export as WAV and convert to AAC in iTunes on Windows and Mac.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)
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hank0
Posts: 4
Joined: Tue Dec 30, 2014 9:35 pm
Operating System: Please select

Re: Export AAC

Post by hank0 » Thu Jan 01, 2015 4:37 am

Ok thanks, I didn't read that, then I will use Custom FFmpeg Export.

Good 2015!
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