[HW] - KOMPRESE ZVUKU

Snail Instruments snail
Středa Březen 17 11:43:16 CET 2004


Jeste ke kompresi zvuku - v konferenci Chipdir se objevil nasledujici
zajimavy prispevek, urcite stoji za to, vzit uvedene skutecnosti v uvahu.

>What seems to be important when you work with speech is the fact that =
>speech
>is made of low intensity sound that should be precisely rendered and =
>high
>intensity "spikes" (I mean with infrequent rises ) that should be =
>rendered
>too.=20
>Of course, if you sample at 16 or 24 bit you can get a perfect sound =
>quality
>respective to what we discussed. The trick is to use a non-linear =
>analog-to
>digital converter to digitize the speech. The difference in input =
>change
>that makes the digital output change is smaller if the amplitude is low =
>than
>when it is high. 

J. Hanzal


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Electronical devices for chemical laboratory, custom electonics design
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Snail Instruments                     Josef Hanzal, M. S.
Vojanova 615                          phone/fax: +420-311-24433
266 01 Beroun                         e-mail: snail@iol.cz
Czech Republic                        URL: http://www.vitrum.cz/snail/
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