exporting audio to higher than 192kbps in m4a

Audacity Help Forum Windows
1

Is it possible to export audio in the m4a format higher then the standard 192 kbs?
I’ve been playing with the presets in “Custom FFmpeg Export” without any results.

Kind regards
Luke

2

Please tell us your version of Audacity and Windows (see the pink panel at the top of the page).

Yes set the bit rate in Custom FFmpeg Export. Choose mp4 format and libvo_aacenc codec. Specify the bit rate in bits per second, so for example “256000” (without quotes) if you want 256 kbps.

Add “.m4a” (without quotes) to the end of the file name when you export.

Audacity will save your last choice of Custom FFmpeg Export settings, so don’t bother with presets unless you need to.


Gale

3

Gale, Thanks for your reply

My version of Audacity is 2.1.1 (Dutch)

Thats what I did

I have tried save preset - load preset - export preset and load preset. But the bitrate in the exported file stil stays 196 kbs.
What am i doing wrong?

I’ve added a printscreen of the “Custom FFmpeg Export” screen
ScreenShot007.jpg

4

Imported presets do not load in 2.1.1. This is fixed in 2.1.2 RC1 from http://www.fosshub.com/Audacity.html.

You don’t need to export and import presets unless you want to take those presets to another machine. Just use save preset and load preset.

So the routine if you want presets for different bit rates is:

  1. Change the bit rate
  2. Type the preset name
  3. Save Preset
  4. Repeat steps 1 to 3 as required
  5. OK

After reopening the dialogue where you specify FFmpeg options, assuming you don’t want to use the last used options which are displayed:

  1. Select the required preset
  2. Load Preset
  3. OK.

Gale

5

I’ve installed version 2.1.2 RC1 and now it is working, I can select a higher bitrate and its working.

Thank you Gale :smiley:

Kind Regards
Luke

6

I think he fault I made is that I still used the export in M4A(AAC)Files(FFmpeg) instead of Custom FFmpeg Export