#include "AudioTools.h" #include "AudioTools/AudioLibs/MaximilianDSP.h" #include "audio/kick.h" #include "audio/snare.h" // Arduino output I2SStream out; Maximilian maximilian(out); // Maximilian def maxiSample kick,snare; //we've got two sampleplayers maxiOsc timer; //and a timer int currentCount,lastCount,playHead,hit[16]={1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1}; //This is the sequence for the kick int snarehit[16]={0,0,0,0,1,0,0,0,0,0,0,0,1,1,0,0};//This is the sequence for the snare int kicktrigger,snaretrigger; double 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: we assign data in progmem //kick.load("/sdcard/Maximilian/kick.wav");//load in your samples. Provide the full path to a wav file. //snare.load("/sdcard/Maximilian/snare.wav"); kick.setSample(kick_vector); snare.setSample(snare_vector); printf("Summary:\n%s", kick.getSummary());//get info on samples if you like. //beats.getLength(); } 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 kicktrigger=hit[playHead%16];//get the value out of the array for the kick snaretrigger=snarehit[playHead%16];//same for the snare playHead++;//iterate the playhead lastCount=0;//reset the metrotest } if (kicktrigger==1) {//if the sequence has a 1 in it kick.trigger();//reset the playback position of the sample to 0 (the beginning) } if (snaretrigger==1) { snare.trigger();//likewise for the snare } sampleOut=kick.playOnce()+snare.playOnce();//just play the file. No looping. output[0]=sampleOut;//left channel output[1]=sampleOut;//right channel kicktrigger = 0;//set trigger to 0 at the end of each sample to guarantee retriggering. snaretrigger = 0; } // Arduino loop void loop() { maximilian.copy(); }