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Diffstat (limited to 'Mozzi_drumsDG0_0_2BETA/Mozzi_drumsDG0_0_2BETA.ino')
| -rw-r--r-- | Mozzi_drumsDG0_0_2BETA/Mozzi_drumsDG0_0_2BETA.ino | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/Mozzi_drumsDG0_0_2BETA/Mozzi_drumsDG0_0_2BETA.ino b/Mozzi_drumsDG0_0_2BETA/Mozzi_drumsDG0_0_2BETA.ino deleted file mode 100644 index f1810c2..0000000 --- a/Mozzi_drumsDG0_0_2BETA/Mozzi_drumsDG0_0_2BETA.ino +++ /dev/null @@ -1,172 +0,0 @@ -/* Example of a sound being triggered by MIDI input. - * - * Demonstrates playing notes with Mozzi in response to MIDI input, - * using the standard Arduino MIDI library: - * http://playground.arduino.cc/Main/MIDILibrary - * - * Mozzi help/discussion/announcements: - * https://groups.google.com/forum/#!forum/mozzi-users - * - * Tim Barrass 2013. - * This example code is in the public domain. - * - * sgreen - modified to use standard Arduino midi library, added saw wave, lowpass filter - * Audio output from pin 9 (pwm) - * Midi plug pin 2 (centre) to Arduino gnd, pin 5 to RX (0) - * http://www.philrees.co.uk/midiplug.htm - * Now with drums! - */ - - -#include <MIDI.h> -#include <MozziGuts.h> -#include <Oscil.h> // oscillator template -#include <Line.h> // for envelope -#include <Sample.h> - -//#include <tables/sin2048_int8.h> // sine table for oscillator -#include <tables/saw2048_int8.h> -#include "kick909.h" -#include "snare909.h" -#include "hihatc909.h" -#include "hihato909.h" - -#include <mozzi_midi.h> -#include <ADSR.h> -#include <fixedMath.h> -#include <LowPassFilter.h> - -// use #define for CONTROL_RATE, not a constant -#define CONTROL_RATE 128 // powers of 2 please - -unsigned long ctrlCounter = 0; - -// audio sinewave oscillator -//Oscil <SIN2048_NUM_CELLS, AUDIO_RATE> osc(SIN2048_DATA); -Oscil <SAW2048_NUM_CELLS, AUDIO_RATE> osc(SAW2048_DATA); - -// drums -Sample <kick909_NUM_CELLS, AUDIO_RATE> kickSamp(kick909_DATA); -Sample <snare909_NUM_CELLS, AUDIO_RATE> snareSamp(snare909_DATA); -Sample <hihatc909_NUM_CELLS, AUDIO_RATE> hihatcSamp(hihatc909_DATA); -Sample <hihato_NUM_CELLS, AUDIO_RATE> hihatoSamp(hihato_DATA); - -byte pattern[4][16] = { - //0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0 hhc - 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, // 1 hho - 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, // 2 snare - 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1 // 3 kick -}; - -// envelope generator -ADSR <CONTROL_RATE> envelope; -LowPassFilter lpf; -int crushCtrl = 0; - -#define LED 13 // to see if MIDI is being recieved - -void HandleNoteOn(byte channel, byte note, byte velocity) { - //osc.setFreq(mtof(note)); // simple but less accurate frequency - osc.setFreq_Q16n16(Q16n16_mtof(Q8n0_to_Q16n16(note))); // accurate frequency - envelope.noteOn(); - digitalWrite(LED,HIGH); -} - -void HandleNoteOff(byte channel, byte note, byte velocity) { - envelope.noteOff(); - digitalWrite(LED,LOW); -} - -void HandleControlChange (byte channel, byte number, byte value) -{ - // http://www.indiana.edu/~emusic/cntrlnumb.html - switch(number) { - //case 1: // modulation wheel - case 105: - lpf.setCutoffFreq(value*2); // control messages are in [0, 127] range - break; - case 106: - //lpf.setResonance(value*2); - crushCtrl = value; - break; - } -} - -void setup() { - pinMode(LED, OUTPUT); - - // Initiate MIDI communications, listen to all channels - MIDI.begin(MIDI_CHANNEL_OMNI); - - // Connect the HandleNoteOn function to the library, so it is called upon reception of a NoteOn. - MIDI.setHandleNoteOn(HandleNoteOn); // Put only the name of the function - MIDI.setHandleNoteOff(HandleNoteOff); // Put only the name of the function - MIDI.setHandleControlChange(HandleControlChange); - - envelope.setADLevels(127,64); - envelope.setTimes(50,200,10000,200); // 10000 is so the note will sustain 10 seconds unless a noteOff comes - - lpf.setResonance(200); - lpf.setCutoffFreq(255); - - osc.setFreq(440); // default frequency - - kickSamp.setFreq((float) kick909_SAMPLERATE / (float) kick909_NUM_CELLS); - snareSamp.setFreq((float) snare909_SAMPLERATE / (float) snare909_NUM_CELLS); - hihatcSamp.setFreq((float) hihatc909_SAMPLERATE / (float) hihatc909_NUM_CELLS); - hihatoSamp.setFreq((float) hihato_SAMPLERATE / (float) hihato_NUM_CELLS); - - //snareSamp.start(); - - startMozzi(CONTROL_RATE); -} - -int beat = 0; -int oldBeat = 0; - -void updateControl(){ - MIDI.read(); - envelope.update(); - - // drums - ctrlCounter++; - // this is called at 128Hz -> 120bmp!? - beat = ((ctrlCounter*2*4)>>7); - if (beat != oldBeat) { - if (pattern[0][beat&0xf]) hihatcSamp.start(); - if (pattern[1][beat&0xf]) hihatoSamp.start(); - if (pattern[2][beat&0xf]) snareSamp.start(); - if (pattern[3][beat&0xf]) kickSamp.start(); - } - oldBeat = beat; -} - -// strip the low bits off! -int bitCrush(int x, int a) -{ - return (x>>a)<<a; -} - -int updateAudio(){ - //return (int) (envelope.next() * osc.next())>>8; -// return (int) (envelope.next() * lpf.next(osc.next()))>>8; - int x = (int) (envelope.next() * osc.next())>>8; - - //int x = (envelope.next() * lpf.next(osc.next()))>>8; - //x = bitCrush(x, crushCtrl>>4); - //x = (x * crushCtrl)>>4; // simple gain - //x = bitCrush(x, 6); - x = lpf.next(x); - - // drums please! - int drums = kickSamp.next() + snareSamp.next() + hihatcSamp.next() + hihatoSamp.next(); - x += drums<<1; - return x; -} - - -void loop() { - audioHook(); // required here -} - |