[chuck-users] sndBuf.valueAt (Forrest Curo asks)

Perry Cook prc at cs.princeton.edu
Sun Apr 19 13:53:49 EDT 2020


This is truly odd.  I don’t have easy means to test it.   I don’t 
know why it wouldbe broken dependent on the dac, however.

For fun you might try something like this, just to verify that the
valueAt() function is what’s busted.

SndBuf s => blackhole;  
“Fred.wav” => s.read;

while (s.pos() < s.samples())  {
    <<< s.last() >>>;
    samp => now;
}

PRC
 
> On Apr 19, 2020, at 9:00 AM, chuck-users-request at lists.cs.princeton.edu wrote:
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>   1. sndBuf.valueAt (Forrest Curo)
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> Message: 1
> Date: Sun, 19 Apr 2020 07:30:15 -0700
> From: Forrest Curo <treegestalt at gmail.com>
> To: ChucK Users Mailing List <chuck-users at lists.cs.princeton.edu>
> Subject: [chuck-users] sndBuf.valueAt
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> 	<CAAn-Ecy0LKVHCWmoUL2Y7w67rsibhRAHOOkN1neZyU=az3vm=g at mail.gmail.com>
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> 
> Using chuck linux-jack this gives me reasonable numbers between -1 and 1.
> Using chuck linux-alsa I'm able to play the file I've read into sndBuf; but
> trying to copy it via .valueAt gives absurdly high ["out of range"] numbers
> at each point. [It can be a different high number different times I run
> chuck, but the number it is turns up at every point I sample.]
> 
> Is there a fix for this? Aside from using jack on a computer where it
> befnurgles the midi?
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