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Old 12-02-2005, 11:30 PM
Jerry Avins
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Default Re: Filtering before changing sample rate

Richard Owlett wrote:
> I think I know the answers, but then again
>
> I have a "hobby" project to evaluate intelligibility of speech with
> varying parameters ( primarily sample rate and bandwidth ).
>
> [ for perspective, in a previous incantation I "discovered" formants ;]
>
> My sample universe is a reading of the Bible recorded under studio
> conditions. As it is a commercial recording, I'm assuming Nyquist is the
> least restrictive criterion it meets.
>
> Am I correct thinking that if I digitally filter my source to less than
> 3 kHz i can safely decimate to 8 kHz sample rate?


Yes

Jerry
--
Engineering is the art of making what you want from things you can get.
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