can't extract audio from MKV file.

[deh707]

i used MediaInfo.
the audiostream is A_AAC/MPEG4/LC/SBR.

i have mkv pack installed, so i can play the video and audio properly, i can switch between 2 languages.
but when i load it into VirtualDubMod, i try to extract the audio stream, (full processing mode, PCM uncompressed), i get this: "No audio decompressor could be found........."


what else do i need to install?

[celtic_druid]

There are no ACM aac decompressors since ACM is baaad. Use something else such as mplayer to decode.

[deh707]

problem solved, i used mkvextract to extract the audio into .aac

then used Nero's file encoder to convert to WAV.

[celtic_druid]

Make sure that it recognised and decoded the SBR part. Some decoders don't for raw aac streams since there is no header marking it as such.