Re: Voice Compression

From: Michael (NoSpam_at_att.net)
Date: 06/18/04 

Date: Fri, 18 Jun 2004 04:23:02 GMT

Kunal wrote:
>
> I am building a digital dictation machine and needed information on
> chips that could compress the voice. I found Voice Band Audio
> Processors on the TI website which seem to be the right choice, but im
> not sure.
> But these chips dont have an external memory interface and I need to
> store the voice data on a external flash chip. The TMS320VC55x series
> does have a external memory interface but then the voice comprassion
> needs to be coded in. Where can I get the program for that.
> Also, which is the latest technique to compress voice. I know of a-law
> u-lam celp, any other out there?
>
> Kunal

To me, "voice compression" conjurs up "audio compression", i.e.
near-constant loudness. Data compression, on the other hand, means to
me making a digitized audio file smaller. Is the object of your quest
near-constant loudness of your audio files or, rather, smaller data
files? Maybe it's implied in the mention of "a-law" and "u-lam" but
those terms are new to me.

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