Thanks for this post. I believe I had the same issue so I am trying to use the libvorbis as recommended. I may be in over my head, but here is what I am doing. First, I am trying to download the libvorbis supporting library via apt-get install, which cannot find libvorbis, so I went to pkgs.org and found out that I needed to get the libvorbis0a, which it said I already had the latest version. I also went to http://packages.debian.org/source/squeeze/libvorbis and made sure I had all the packages it mentions installed, libvorbis-dbg, libvorbis-dev, libvorbis0a, libvorbisenc2, libvorbisfile3 Second, I have tried to enable the decoder/encoder and compile a new ffmpeg with these command sudo ./configure --list-decoders|grep orbis sudo ./configure --enable-encoder=libvorbis --enable-decoder=libvorbis sudo make sudo make install I then try to run the ffmpeg command get this output: ---- ffmpeg -i audio.wav -acodec libvorbis -aq 60 audio.ogg ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers built on Jun 23 2012 08:28:17 with gcc 4.4.5 configuration: --enable-encoder=libvorbis --enable-decoder=libvorbis WARNING: library configuration mismatch avutil configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libaacplus --enable-libx264 avcodec configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libaacplus --enable-libx264 avformat configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libaacplus --enable-libx264 avdevice configuration: --enable-libxvid --enable-libmp3lame --enable-libvorbis --enable-libfaac --enable-shared --enable-nonfree --enable-gpl avfilter configuration: --enable-static --enable-shared --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libaacplus --enable-libx264 swscale configuration: --enable-libxvid --enable-libmp3lame --enable-libvorbis --enable-libfaac --enable-shared --enable-nonfree --enable-gpl swresample configuration: --enable-libxvid --enable-libmp3lame --enable-libvorbis --enable-libfaac --enable-shared --enable-nonfree --enable-gpl libavutil 51. 54.100 / 51. 60.100 libavcodec 54. 23.100 / 54. 29.100 libavformat 54. 6.100 / 54. 11.100 libavdevice 54. 0.100 / 54. 0.100 libavfilter 2. 77.100 / 2. 82.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 [wav @ 0x99a53c0] max_analyze_duration 5000000 reached at 5015510 Guessed Channel Layout for Input Stream #0.0 : mono Input #0, wav, from 'audio.wav': Duration: 00:03:24.49, bitrate: 705 kb/s Stream #0:0: Audio: pcm_s32le ([1][0][0][0] / 0x0001), 22050 Hz, mono, s32, 705 kb/s Unknown encoder 'libvorbis' ---- Do I need a different command-line option? Or maybe I haven't compiled the ffmpeg correctly? Thanks for any insights. -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/FFMpeg-native-aac-decoder-tp1568222... Sent from the FFmpeg-users mailing list archive at Nabble.com.