MyApp(){
lpf.type(LOW_PASS); // Set filter to low-pass response
lpf.res(4); // Set resonance amount to emphasize filter
env.attack(0.01); // Set short (10 ms) attack
env.decay(0.4); // Set longer (400 ms) decay
tmr.freq(120./60.*4.); // Set timer frequency to 120 BPM
tmr.phaseMax(); // Ensures timer triggers on first sample
modCutoff.period(30); // Set period of cutoff modulation
modCutoff.phase(0.5); // Start half-way through cycle
freq.lag(0.1); // Lag time of portamento effect
step=0;
}
int main()
{
tmr.period(3); // Reset the envelope every 3 seconds
env.attack(0.01); // Attack time
env.decay(0.05); // Decay time
// Delays, lowpass, and allpass filters setup code goes here
//
lpf.type(LOW_PASS);
lpf.freq(2600);
lpf.res(sqrt(2.0)/2.0);
AudioIO audioIO(frameCount, samplingRate, audioCallBack, NULL, channelsOut, channelsIn);
Sync::master().spu(audioIO.framesPerSecond());
audioIO.start();
printf("Press 'enter' to quit...\n");
getchar();
return 0;
}
void audioCB(AudioIOData& io){
while(io()){
if(tmr()){
switch(cnt){
case 0: filt.type(Filter::LP); printf("Low-pass\n"); break;
case 1: filt.type(Filter::HP); printf("High-pass\n"); break;
case 2: filt.type(Filter::BP); printf("Band-pass\n"); break;
case 3: filt.type(Filter::BR); printf("Band-reject\n"); break;
}
++cnt %= 4;
}
float cutoff = scl::pow3(mod.triU()) * 10000;
filt.res(4);
filt.freq(cutoff);
float s = filt(src());
io.out(0) = io.out(1) = s * 0.1f;
}
}
