Re: SoundBlaster sampling frequency accuracy

Article View: comp.multimedia

Article #559

#559

From: Gilles Gravier
Date: Fri, 21 Aug 1992 08:45

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In article <1992Aug20.084909.5385@kth.se> pesjogre@nada.kth.se (Peter Sj{gren) writes:
>Hi,
>
(... DELETED ...)
>
>I therefore wonder about the accuracy of the sampling frequency and other
>data on this model (1.5) and if they are better on later versions.
>

	Ah, I suggest you read the programmers manual of the Sound Blaster...
I don't have it at work with me, but you'll notice that the sampling
frequency is stored in a specific format... Just count the bits, and you'll
get the acuracy with which the sampling frequency is defined... That should
help you...

	As an example, say you're using 8 bits to define a frequency... And
Your Frequence can go from 0 to 22000 Hz... Then you have a 86 Hz acuracy.
At 11000 KHz, it's 43 Hz...  And so on... 440 Hz give 2 Hz accuracy.

	Does this help?

Gilles.

-- 
 This message has been brought to you by Gilles GRAVIER - corwin@ensta.fr
                       ***** Amber Forever! *****
    I know you believe you understand what you think I said, but I am
       sure, you realize,  that what you heard is not what I meant.

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References: <1992Aug20.084909.5385@kth.se>

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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!corton!ensta!news
From: corwin@ensta.ensta.fr (Gilles Gravier)
Newsgroups: comp.multimedia
Subject: Re: SoundBlaster sampling frequency accuracy
Message-ID: <172af8INNllp@ensta.ensta.fr>
Date: 21 Aug 92 08:45:28 GMT
References: <1992Aug20.084909.5385@kth.se>
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