[sc-users] NRT sample playback

["Aaron McLeran" <amcleran@xxxxxxxxx>]

Hello, I am new to SC and am studying NRT playback.  I would like to be able to define a synthDef that plays back a sample like the following:

(
SynthDef("NRTsample_test",{ arg rate = 1, start = 0, bufnum = 0;    
    Out.ar(0,
        PlayBuf.ar(2, bufnum, BufRateScale.kr(bufnum)*rate, startPos: start, loop: 0);
    )
}).load(s);
)

z = Buffer.read(s, "sample.aif");  // load sample
a = Synth(\NRTsample_test, [\bufnum, 
z.bufnum]);  // play back 

However, when I put this in my score, I don't get any errors. I just get silence.

Here is my score:

(
g = [
    [0, [\s_new, \NRTsample_test, 1000, 0, 0, \bufnum, 
z.bufnum]],    
    [0.5, [\s_new, \NRTsample_test, 1001, 0, 0, \bufnum, z.bufnum]], 
    [1, [\s_new, \NRTsample_test, 1003, 0, 0, \bufnum, z.bufnum]],
    [2, [\c_set, 0, 0]] // finish
    ];
o = ServerOptions.new.numOutputBusChannels
 = 2; // stereo output
Score.recordNRT(g, "sample-test.osc", "sample_test.aiff", options: o); // synthesize
)

But I get no sound!  Can somebody tell me what I am doing wrong?

I am attaching an .rtf file of the code example...

Attachment: sample_test.rtf
Description: RTF file