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genreal purpose audio codec?
dragontiger
post Dec 28 2010, 01:32
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Hi all,

Is there any general purpose codec that would work well on all kinds of audio data? For example - if you were recording your daily activities, then your data would consist of speech segments, environmental audio segments (from your surroundings) and so on. Is there an appropriate codec to use for such kind of data?

The closest to this I found was Siren 22 by Polycom. However, it's closed-source. sad.gif

Thanks in advance for answering the question.
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gimgim
post May 20 2011, 23:25
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I doubt you can run any decent encoder for 24h on a couple of coin cells.
I would look into DPCM (may be with some simple adaptive quantization step) + silence detection.
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- dragontiger   genreal purpose audio codec?   Dec 28 2010, 01:32
- - Roseval   Iím inclined to say almost any Codec will do. Basi...   Dec 28 2010, 01:58
- - dragontiger   Thanks for the reply. I would like to explain th...   Dec 28 2010, 02:43
|- - C.R.Helmrich   QUOTE (dragontiger @ Dec 28 2010, 03:43) ...   Dec 30 2010, 00:07
- - saratoga   Are you carrying around a PC all day to do this, o...   Dec 28 2010, 09:06
- - dragontiger   The idea is to build a recorder that would last up...   Dec 29 2010, 05:24
|- - saratoga   QUOTE (dragontiger @ Dec 28 2010, 23:24) ...   Dec 29 2010, 05:57
- - dragontiger   Sorry for leaving out details - I'm planning f...   Dec 29 2010, 07:44
|- - saratoga   QUOTE (dragontiger @ Dec 29 2010, 01:44) ...   Dec 29 2010, 17:17
- - dragontiger   WavPack sounds like a good idea. I think I will lo...   Dec 29 2010, 07:51
- - Roseval   You might have a look at AAC: http://en.wikipedia....   Dec 29 2010, 10:54
- - odyssey   24 hour uncompressed mono audio is approx. 8GB. Fl...   Dec 29 2010, 11:11
- - Remedial Sound   I'll second the recommendation for LAME mp3, a...   Dec 29 2010, 16:40
- - Notat   It does take a non-trivial amount of power and tim...   Dec 29 2010, 18:31
- - Rotareneg   You might consider just using run-length and Huffm...   Dec 29 2010, 18:38
- - SebastianG   Maybe SBC is an option. This is Boothooth's pr...   Dec 29 2010, 18:46
|- - saratoga   QUOTE (SebastianG @ Dec 29 2010, 12:46) M...   Dec 29 2010, 19:56
- - knutinh   Do you expect to do any AGC to compensate for the ...   Dec 29 2010, 20:32
- - dragontiger   Thank you everyone for all the suggestions. I have...   Dec 29 2010, 23:42
|- - saratoga   QUOTE (dragontiger @ Dec 29 2010, 17:42) ...   Dec 30 2010, 00:00
- - dragontiger   The plan is not to use a CPU, but develop an ASIC ...   Dec 30 2010, 00:07
|- - saratoga   QUOTE (dragontiger @ Dec 29 2010, 18:07) ...   Dec 30 2010, 00:15
|- - DonP   QUOTE (saratoga @ Dec 29 2010, 18:15) QUO...   May 20 2011, 10:31
- - C.R.Helmrich   In case anyone is interested in technical details ...   May 19 2011, 17:33
- - IgorC   Chris, It's surprise that USAC will have imp...   May 20 2011, 06:00
|- - C.R.Helmrich   QUOTE (IgorC @ May 20 2011, 07:00) Lookin...   May 20 2011, 19:44
- - gimgim   I doubt you can run any decent encoder for 24h on ...   May 20 2011, 23:25


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