Posted by Randy Yates on 11/29/07 16:42

nospam@nospam.com (Don Pearce) writes:

> On Thu, 29 Nov 2007 13:09:22 +0000, Eeyore
> <rabbitsfriendsandrelations@hotmail.com> wrote:
>
>>
>>
>>Randy Yates wrote:
>>
>>> Eeyore <rabbitsfriendsandrelations@hotmail.com> writes:
>>> > [...]
>>> > ALL audio compression schemes rely on 'throwing away' information to get the
>>> > desired result.
>>>
>>> I suppose you meant to say "ALL lossy audio compression schemes ...".
>>
>>Fair enough.
>>
>>How much data compression can the non-lossy ones deliver ? I've never investigated. I imagine
>>it can't be that much.
>>
>>Graham
>
> I don't think the non-lossy ones are strictly codecs - just data
> compression and restoration systems.

Lossless data compression is formally a type of "source coding," so
codec (meaning "coder/decoder") is a perfectly accurate term for the
process.

A/D conversion is a type of quantization, which also falls under the
classification of source coding, so the application of codec is accurate
in this sense as well.
--
% Randy Yates % "She tells me that she likes me very much,
%% Fuquay-Varina, NC % but when I try to touch, she makes it
%%% 919-577-9882 % all too clear."
%%%% <yates@ieee.org> % 'Yours Truly, 2095', *Time*, ELO
http://www.digitalsignallabs.com

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