//gkc: demonstation of dyna.compress() mode



//a compressor reduces the gain of events above a

//volume threshold, according to a gain ratio:

//ratio = input:output or input/output



//this tends to make the volume of all the events more uniform

//usually, you apply gain to compensate for the reduction

//to make the overall signal louder



sndbuf inst => dyna dyn => dac;

"special:dope" => inst.read;



//set the mode and presets

dyn.compress();



//fiddle with the presets

dyn.thresh( math.pow(10, -25/20.0) ); //-25 db

dyn.attackTime( 10::ms );

dyn.releaseTime( 100::ms );

//dyn.slope( 0.5 );

dyn.ratio( 3.0 );



//some gain to compensate

//dyn.gain( 2.0 );



inst.gain( 0.6 );



for(0=>int i; ;i++) {



    //toggle processing every 4 beats

    if ( i%4==0 ) {

        dyn.op( -dyn.op() );

        <<<"op:",dyn.op()>>>;

    }



    //events of building volume

    inst.gain( 0.1 * math.pow(2,(i%4+1)) );

    

    inst.pos( 0 );

    1::second => now;

}