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Re: Sound Input Values
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Re: Sound Input Values


  • Subject: Re: Sound Input Values
  • From: Michael Thornburgh <email@hidden>
  • Date: Wed, 17 Mar 2004 16:08:25 -0800

the PCM samples are supposed to be -1.0 to +1.0 from core audio devices. they shouldn't be -3.98 to +3.98.

-mike

On Mar 16, 2004, at 8:32 PM, Justin Bakse wrote:

Hello,
I am working on a quick project that monitors the samples during a soft play through. I'm looking at and basing a some of my code of off the AudioThru example. It looks like the value range for the incoming samples is -4 to 4 (actually something like -3.98 to 3.98). I'm not sure what i was expecting the range to be, but this is not it. Is this range standard? Standard for Linear PCM? Or might other devices use a different range? It seems like the sort of thing that you would query the device for (like you would look for the format of the stream, sample rate, etc.). Is that right? I can't seem to find a property to be looking for. Thanks, Justin
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References: 
 >Sound Input Values (From: Justin Bakse <email@hidden>)

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