Re: [chuck-users] assigning Gen7 coefs

Ah -- an upgrade to the current version solved it. Thanks for taking a minute to look at it, Tom. - greg On Mar 29, 2009, at 11:54 PM, Tom Lieber wrote:

On Sun, Mar 29, 2009 at 11:50 AM, Gregory Brown wrote:

...

I am trying to use Gen7 for the first time and I am running into trouble assigning the coefficients. The file shown in Example 2 works fine, but Example 1 generates no sound and the lookup gives only NaN. The difference between the two examples is in how I create the coefs array, although I don't see how this affects the outcome.

Can someone help me understand what the difference is and why one might work while the other does not?

Thanks,

- Greg

//+_+_+_+_+_+_+_+_+_+_+_+_+_++_++_+++_+_+

// Example 1

//+_+_+_+_+_+_+_+_+_+_+_+_+_++_++_+++_+_+

// setup Phasor driver => Gen7 g7 => dac; 220 => driver.freq;

// declare array for coefs 5 => float num_values; float coefs[ ((num_values$int)*2) - 1];

// insert random values into every even index for ( 0 => int i; i < num_values ; i++ ) { Std.rand2f(0,1) => coefs[i*2]; }

// insert time values into every odd index for ( 1 => int i; i < num_values ; i++ ) { 1 / num_values => coefs[(i*2)-1]; }

// print it out for ( 0 => int i; i < coefs.cap() ; i++ ) { <<< "coefs[",i,"]: ", coefs[i] >>>; }

// assign the table coefs => g7.coefs;

// do a lookup <<< g7.lookup(.5) >>>;

// loop while (true) { 100::ms => now; }

// +_+_+_+_+_+_+_+_+_+_+_+_+_++_++_+++_+_+

// Example 2

//+_+_+_+_+_+_+_+_+_+_+_+_+_++_++_+++_+_+

// setup Phasor driver => Gen7 g7 => dac; 220 => driver.freq;

// declare array for coefs 5 => float num_values; float coefs[ ((num_values$int)*2) - 1];

// directly assign floats to array [0.709912 , 0.200000 , 0.496574 , 0.200000 , 0.911184 , 0.200000 , 0.270048 , 0.200000 , 0.701863] @=> coefs;

// print it out for ( 0 => int i; i < coefs.cap() ; i++ ) { <<< "coefs[",i,"]: ", coefs[i] >>>; }

// assign the table coefs => g7.coefs;

// do a lookup <<< g7.lookup(.5) >>>;

// loop while (true) { 100::ms => now; }

Both work for me.. (miniAudicle, OS X, ChucK 1.2.1.2)

-- Tom Lieber http://AllTom.com/ _______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users