© 2010 Dr. M Grierson / Strangeloop

11. Mixing

#include "maximilian.h"

osc myCounter,mySwitchableOsc,myAutoPanner;
int CurrentCount;
double myOscOutput,myFilteredOutput,myPanPosition;
double myStereoOutput[2];// we need an output for each channel.
double myEnvelopeData[6] = {500,0,1000,500,0,500};
//this data will be used to make an envelope. Value and time to value in ms.
envelope myEnvelope;
filter myFilter;
mix myOutputs;//this is the stereo mixer channel.

extern int channels=2;//stereo-must be supported by hardware
extern int buffersize=256;//should be fine for most things
extern int samplerate=44100;//SR must be supported by card. It's always the default

void setup() {//some inits
myEnvelope.amplitude=myEnvelopeData[0]; //initialise the envelope
}

void play(double *output) {

CurrentCount=myCounter.phasor(1, 1, 9);
//phasor can take three arguments; frequency, start value and end value.

if (CurrentCount<5)//simple if statement

myOscOutput=mySwitchableOsc.square(CurrentCount*100);

else if (CurrentCount>=5)//and the 'else' bit.

myOscOutput=mySwitchableOsc.saw(CurrentCount*50);
//one osc object can produce whichever waveform you want.

if (CurrentCount==1)

myEnvelope.trigger(0,myEnvelopeData[0]); //trigger the envelope

myFilteredOutput=myFilter.lores(myOscOutput,(myEnvelope.line(6, myEnvelopeData)),10);
//lores takes an audio input, a frequency and a resonance factor (1-100)

myPanPosition=myAutoPanner.sinewave(1);

myOutputs.stereo(myFilteredOutput,myStereoOutput,myPanPosition);

//Stereo, Quad or 8 Channel. Specify the input to be mixed, the //output[numberofchannels], and the pan (0-1,equal power).

//When working with mixing, you need to specify the outputs explicityly
output[0]=myStereoOutput[0];

output[1]=myStereoOutput[1];

}

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