67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
|
|
//this tutorial explains how to use the maxiEnv
|
|
|
|
#include "AudioTools.h"
|
|
#include "AudioTools/AudioLibs/MaximilianDSP.h"
|
|
#include "audio/cello_open_string_bowed.h"
|
|
|
|
// Arduino output
|
|
I2SStream out;
|
|
Maximilian maximilian(out);
|
|
|
|
// Maximilian
|
|
maxiSample sound1;
|
|
maxiOsc timer,snarePhase; //and a timer
|
|
maxiEnv envelope;//this is going to be an envelope
|
|
int currentCount,lastCount,playHead,
|
|
sequence[16]={1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0}; //This is the sequence for the kick
|
|
int sampleTrigger;
|
|
float sampleOut;
|
|
|
|
void setup() {//some inits
|
|
// setup logging
|
|
Serial.begin(115200);
|
|
AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
|
|
|
|
// setup audio output
|
|
auto cfg = out.defaultConfig(TX_MODE);
|
|
out.begin(cfg);
|
|
maximilian.begin(cfg);
|
|
|
|
//YOU HAVE TO PROVIDE THE SAMPLES....
|
|
//sound1.load("/Users/mickgrierson/Documents/audio/68373__juskiddink__Cello_open_string_bowed.wav");//load in your samples. Provide the full path to a wav file.
|
|
sound1.setSample(cello_open_string_bowed_vector);
|
|
|
|
Serial.println(sound1.getSummary().c_str());//get info on samples if you like.
|
|
}
|
|
|
|
void play(float *output) {//this is where the magic happens. Very slow magic.
|
|
|
|
currentCount=(int)timer.phasor(8);//this sets up a metronome that ticks 8 times a second
|
|
|
|
if (lastCount!=currentCount) {//if we have a new timer int this sample, play the sound
|
|
sampleTrigger=sequence[playHead%16];
|
|
playHead++;//iterate the playhead
|
|
lastCount=0;//reset the metrotest
|
|
}
|
|
|
|
//the envelope we're using here is an AR envelope.
|
|
//It has an input (which in this case is a sound)
|
|
//It has an attack coefficient, a hold val (in samples)
|
|
//and a release coefficient. Finally, it has a trigger input.
|
|
//If you stick a 1 in the trigger input, it retriggers the envelope
|
|
sampleOut=envelope.ar(sound1.playAtSpeed(1.0), 0.1, 0.9999, 1, sampleTrigger); //
|
|
|
|
output[0]=sampleOut;//left channel
|
|
output[1]=sampleOut;//right channel
|
|
|
|
sampleTrigger = 0;//set trigger to 0 at the end of each sample to guarantee retriggering.
|
|
|
|
}
|
|
|
|
// Arduino loop
|
|
void loop() {
|
|
maximilian.copy();
|
|
}
|
|
|