AAC Export Options - Audacity Manual

# AAC Export Options

### From Audacity Manual

AAC is a lossy, compressed audio format. It is the default audio format for Apple iTunes®, iPod® and iPhone®.

  Accessed by: File > Export Audio... then choosing M4A(AAC) Files FFmpeg from the Save as type dropdown menu

  Also accessed by: File > Export Multiple... then choosing M4A(AAC) Files FFmpeg from the Save as type dropdown menu. In this case the options dialog will appear in the center of the Export Multiple dialog.

## AAC Export Setup

- Quality: Currently this slider has no effect. The exported file is always a constant bit rate (CBR) 196 kbps (stereo) or 98 kbps (mono) file. Exporting more than two channels using Advanced Mixing Options is not currently supported.

  To specify a different constant bit rate for a mono or stereo AAC file, choose Custom FFmpeg Export in the Export Audio Dialog. Then use the Open custom FFmpeg format options button to open the Custom FFmpeg Export Options dialog. See the example on that page for details.

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