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Normalize samples?

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Normalize samples?

Subject: Normalize samples?
From: Tim Omernick <email@hidden>
Date: Tue, 16 Nov 2004 18:15:14 -0800

Hi,

I searched through the list archives and could not find an answer to this seemingly simple question. The application I'm working on needs to perform some processing on samples from a microphone, but only if the volume level of those samples exceeds some threshold.

Is there a way to normalize the samples passed to my IOProc so that that every amplitude value lies within the range {-1.0, 1.0}? I get different amplitude ranges for different microphones, even with identical volume settings.

Am I missing something?

Thanks,
-Tim Omernick
Engineer, The Omni Group

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