Audacity Forum

While you can force AAC to have multiple audio channels, it's most often used as stereo. You can manage stereo AAC with the FFMpeg software plugin. Dolby® AC3 is the one with the 5.1 encoding and Audacity does not have a Dolby® decoder. I don't know that it can handle DTS or WAV6, either.

Koz

... Here.m4a" -r 22000 "../../../musica_sml/04 Wish You Were Here.m4a" i got: sox FAIL formats: no handler for file extension `m4a' ffmpeg libraries seem to be installed. cheers

... from itunes into audacity it tells me "audacity recognized the type of the file (filename.m4a) Importers supposeedly supporting files are: FFmpeg-compatable files, but none of them understood this format." I downloaded the FFmpeg library thing but nothing has changed. There is really ...

I have compiled SVN FFmpeg and then Audacity with USE_SYSTEM_FFMPEG. Here's how I've done it. First we need all build dependencies: sudo apt-get build-dep ffmpeg audacity Then we can get FFmpeg: git clone git://git.ffmpeg.org/ffmpeg.git ...

Once Benjamin supplied the ffmpeg5 patch I could run its autogen.sh, run ./configure --disable-dynamic-loading and compile Audacity OK. The Ubuntu FFmpeg was detected and the Libraries preferences buttons for FFmpeg greyed out as expected. The Libraries preferences buttons for MP3 are not greyed ...

... at work. No "baggage" from other applications and tons of drive space -- I think it was 1/2TB. Audacity install went well and I got the FFMpeg to work. But not Lame. I knew from other postings that I needed to pull down the ZIP file and use that, so I elbowed my way past the distractions ...

To just use the command on Windows (without giving a path to the encoder), you'll need to have installed the Lame or FFmpeg binaries in their default location in "Program Files" so as to create a Windows registry setting that Audacity will look for as the location of the ...

With an un-patched svn build I'm not getting Audacity to recognise FFmpeg at all (thought that might have changed by now). An unpatched svn build of Audacity should recognise FFmpeg 0.5 from Spring 2009, or a later library or package from that year (as it ...

... looking at previous posts? It's certainly confusing Yes I have and yes it is :P With an un-patched svn build I'm not getting Audacity to recognise FFmpeg at all (thought that might have changed by now). I'll give the "ffmpeg-av-match-ext.patch" a go, see what mileage I get with that, ...

What patches, workarounds and jumping through blazing hoops are currently required to make Audacity svn trunk work with FFmpeg on Linux? Have you tried looking at previous posts? It's certainly confusing. You need "ffmpeg-av-match-ext.patch" from http://forum.audacityteam.org/viewtopic.php?f=19&t=42171p107655#p107655 ...