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looking for efficient speech codec
post Jun 15 2012, 02:12
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Hi. I have quite a few speech recordings (talkradio, lectures, notes to self, etc.) which I need to encode. I have done some tests with HE-AAC V2 (Nero AAC codec / and am quite pleased with the quality/filesize ratio.

I then tried speex (speex-1.2beta1/$). When comparing to HE-AACv2 files of the same size, speex failed horribly for me during VLC 1.1.11 playback, suffering from major artefacts and lower overall quality. Not quite what I expected. (Unless VLC decoding is broken or the speex version too old ?)

  1. How does speex fare against HE-AACv2 for you ?
  2. Is there any other substantially more efficient speech codec ?
  3. What software player (Windows) can you recommend ?
  4. What considerations should I not overlook if I want to keep the files for life (I'm still young :-) ?

many thanks

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