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> All Audio Codecs That Play On Zaurus?, Let's compile a list:MP3,OGG,WAV,etc...
post Dec 15 2004, 07:39 AM
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What are all of the audio codecs that are supported under Zaurus?

So far I know of:
  • MP3 (MPEG-Layer 3) - plays on default audio player and most (all?) audio players
  • WAV (Uncompressed) - *gag*
  • OGG (Ogg Vorbis) - plays on "MediaPlayer" after installing special plugin
OGG is roughly twice as good as MP3, but neither of them are very good at doing what I need. I have many audio books I want to listen to on my Zaurus. Previous to my Zaurus I used 5 kbps RealAudio and/or 5 kbps Windows Audio. MP3s can only go down to 16 kbps (and most encoders can only go down to 32 kbps). Ogg Vorbis can only go down to 9 kbps (and forces the file to remain stereo), and even this is only possible if I encode the audio file to an 8 KHz uncompressed WAV file and then encode OGG using the lowest audio quality (this is the solution I'm currently using and the quality is fine for audio books... but it is a waste since it requires stereo even though the source is in mono).

Are there other audio codecs that are supported under the Zaurus through any means, hacks, installations, etc?


Is there a way to encode MONO OGG files (so I can get down to 4-5 kbps?)
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post Dec 17 2004, 08:39 AM
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QUOTE(TonyOlsen @ Dec 17 2004, 01:29 PM)
What are the pro's and con's of the MP4, 3GP, and AMR codecs?  Which one is the best for what?

MP4 and 3GP are not codecs but rather containers (with 3GP being a restricted subset of MP4 for use on mobile phones). Both belong to the MPEG-4 framework and can contain Audio, Video and who knows what else unsure.gif

The elementary streams within can be encoded using a variety of codecs (MP4V, H.261, H.263 or H.264 aka AVC for video and MP3, AAC-LC, -HE or AMR for audio), depending on the playback device one is targetting.

AMR is the (kinda) new kid on the block when it comes to speech compression especially with mobile phones, whereas AAC-LC is more or less the MPEG-4 successor of MP3, i.e. a general purpose audio codec. AAC-HE is the low bitrate variant of AAC, using SBR to achieve better sound quality at lower bitrates (so technically speaking it would me MPEG-4's equivalent of MP3pro).

Best regards,
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