Phase shift between two oscillators in Minim 2.1Beta

Core Library Questions

comuniss

Phase shift between two oscillators in Minim 2.1Beta

in Core Library Questions • 1 year ago

I am trying to create two sine waveforms that have a phase offset between them. An extreme example would be to have one channel start at zero like a sine wave and the other to start at one like a cosine wave. This would be a 90 degree phase shift.

I have tried using the delay function, but that creates a weird feedback. I have also tried attaching a setPhase, but that seems to act more like a frequency modulation, rather than an offset. Both should have the exact same frequency, just shifted in time with respect to each other.

Any ideas?

Replies(1)

comuniss

Re: Phase shift between two oscillators in Minim 2.1Beta

1 year ago

I think I figured out that I was running the delTime to large. This seems to work with values less than 0.5. Here is the code I am using. If someone has a better way, please let me know.

out = minim.getLineOut( Minim.STEREO, 1024 );

Oscil mySine=new Oscil(128, .5, Waves.SINE); //generate reference signal

Pan pan1 = new Pan(-1); // set left and right channels for reference and shifted signals

Pan pan2= new Pan(1);

mySine.patch(pan1).patch(out);

Oscil mySine2=new Oscil(128, .5, Waves.SINE); // create signal to shift

myDelay =new Delay(.04, 1, false, false); Create Delay

mySine2.patch(myDelay).patch(pan2).patch(out); patch delay to mySine2

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