No sound coming out of synthDef

Questions
1

Hello,

I’m new to SC and at my wit’s end. Can anyone explain to me why my code doesn’t produce any sound?

Thank you so much.

~b3 = Buffer.alloc(s, 44800*30,1);
(
d= SynthDef(\hubSine, { | out =0, freq= 0.0, phase = pi, atk = 0.5, rls= 0.5, pan-0, amp=0.0, gate=1, outBus = 0, level = 0.7, run =1, loop= 1|

var sig, rec,play;

	sig = SoundIn.ar(\micIn.kr(0!2)* level);
     sig = sig + CombL.ar(sig, 2, [atk, rls], 7);
     rec = RecordBuf.ar(sig,~b3,\offset.kr(0),\reclev.kr(1).varlag(0.3),\prelev.kr(-2.dbamp).varlag(0.3), run,loop);
play = PlayBuf.ar(2, ~b3.bufnum,loop:1);
play  = HPF.ar(play,80);
play = LPF.ar(play, 12000);

Out.ar(outBus,play);

}).play;

)

d.set(\reclev, 0, \prelev, 1);

d.set(\reclev, 0, \prelev, 0);

2

try allocating the buffer as 2 channels: ~b3 = Buffer.alloc(s, 44800*30,2)