diff options
Diffstat (limited to 'CheapSynth_FM4osc2Poly_v0_5_6')
| -rw-r--r-- | CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h | 307 | ||||
| -rw-r--r-- | CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino | 426 |
2 files changed, 0 insertions, 733 deletions
diff --git a/CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h b/CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h deleted file mode 100644 index 760d136..0000000 --- a/CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h +++ /dev/null @@ -1,307 +0,0 @@ -/* - * ADSR.h - * - * Copyright 2012 Tim Barrass. - * - * This file is part of Mozzi. - * - * Mozzi is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * Mozzi is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with Mozzi. If not, see <http://www.gnu.org/licenses/>. - * - */ - -#ifndef ADSR_H_ -#define ADSR_H_ - -#include "Arduino.h" -//#include <util/atomic.h> -#include "Line.h" -#include "mozzi_fixmath.h" - -/** A simple ADSR envelope generator. -@todo Test whether using the template parameter makes any difference to speed, -and rationalise which units which do and don't need them. -Template objects are messy when you try to use pointers to them, -you have to include the whole template shebang in the pointer handling. -*/ -template <unsigned int CONTROL_UPDATE_RATE> -class ADSR -{ -private: - - const unsigned int AUDIO_TICKS_PER_CONTROL; - - unsigned int phase_control_step_counter; - unsigned int phase_num_control_steps; - - enum {ATTACK,DECAY,SUSTAIN,RELEASE,IDLE}; - - - struct phase{ - byte phase_type; - unsigned int control_steps; - unsigned long audio_steps; - Q8n0 level; - }attack,decay,sustain,release,idle; - - phase * current_phase; - - // Linear audio rate transitions for envelope - Line <unsigned long> transition; - - inline - unsigned int convertMsecToControlSteps(unsigned int msec){ - return (uint) (((ulong)msec*CONTROL_UPDATE_RATE)>>10); // approximate /1000 with shift - } - - inline - void setPhase(phase * next_phase) { - phase_control_step_counter = 0; - phase_num_control_steps = next_phase->control_steps; - transition.set(Q8n0_to_Q16n16(next_phase->level),next_phase-> control_steps); - current_phase = next_phase; - } - - - - inline - void checkForAndSetNextPhase(phase * next_phase) { - if (++phase_control_step_counter >= phase_num_control_steps){ - setPhase(next_phase); - } - } - - - inline - void checkForAndSetIdle() { - if (++phase_control_step_counter >= phase_num_control_steps){ - transition.set(0,0,1); - current_phase = &idle; - } - } - - - -inline - void setTime(phase * p, unsigned int msec) - { - p->control_steps=convertMsecToControlSteps(msec); - p->audio_steps = (ulong) p->control_steps * AUDIO_TICKS_PER_CONTROL; - } - - -public: - - /** Constructor. - */ - ADSR():AUDIO_TICKS_PER_CONTROL(AUDIO_RATE/CONTROL_UPDATE_RATE) - { - attack.phase_type = ATTACK; - decay.phase_type = DECAY; - sustain.phase_type = SUSTAIN; - release.phase_type = RELEASE; - idle.phase_type = IDLE; - release.level = 0; - } - - -/** Updates the internal controls of the ADSR. - Call this in updateControl(). - */ - void update(){ // control rate - - switch(current_phase->phase_type) { - - case ATTACK: - checkForAndSetNextPhase(&decay); - break; - - case DECAY: - checkForAndSetNextPhase(&sustain); - break; - - case SUSTAIN: - checkForAndSetNextPhase(&release); - break; - - case RELEASE: - checkForAndSetIdle(); - break; - - } - } - - /** Advances one audio step along the ADSR and returns the level. - Call this in updateAudio(). - @return the next value, as an unsigned int. - */ - inline - unsigned int next() - { - return Q16n16_to_Q16n0(transition.next()); - } - - - - /** Start the attack phase of the ADSR. THis will restart the ADSR no matter what phase it is up to. - */ - inline - void noteOn(){ - setPhase(&attack); - } - - - - /** Start the release phase of the ADSR. - @todo fix release for rate rather than steps (time), so it releases at the same rate whatever the current level. - */ - inline - void noteOff(){ - setPhase(&release); - } - - - - - - /** Set the attack level of the ADSR. - @param value the attack level. - */ - inline - void setAttackLevel(byte value) - { - attack.level=value; - } - - - - /** Set the decay level of the ADSR. - @param value the decay level. - */ - inline - void setDecayLevel(byte value) - { - decay.level=value; - } - - - /** Set the sustain level of the ADSR. - @param value the sustain level. Usually the same as the decay level, - for a steady sustained note. - */ - inline - void setSustainLevel(byte value) - { - sustain.level=value; - } - - /** Set the release level of the ADSR. Normally you'd make this 0, - but you have the option of some other value. - @param value the release level (normally 0). - */ - inline - void setReleaseLevel(byte value) - { - release.level=value; - } - - - - /** Set the attack and decay levels of the ADSR. This assumes a conventional - ADSR where the sustain continues at the same level as the decay, till the release ramps to 0. - @param attack the new attack level. - @param value the new sustain level. - */ - inline - void setADLevels(byte attack, byte decay) - { - setAttackLevel(attack); - setDecayLevel(decay); - setSustainLevel(decay); - setReleaseLevel(0); - } - - - - - - - - /** Set the attack time of the ADSR in milliseconds. - The actual time taken will be resolved within the resolution of CONTROL_RATE. - @param value the unsigned int attack time in milliseconds. - */ - inline - void setAttackTime(unsigned int msec) - { - setTime(&attack, msec); - } - - - /** Set the decay time of the ADSR in milliseconds. - The actual time taken will be resolved within the resolution of CONTROL_RATE. - @param value the unsigned int decay time in milliseconds. - */ - inline - void setDecayTime(unsigned int msec) - { - setTime(&decay, msec); - } - - - /** Set the sustain time of the ADSR in milliseconds. - The actual time taken will be resolved within the resolution of CONTROL_RATE. - The sustain phase will finish if the ADSR recieves a noteOff(). - @param value the unsigned int sustain time in milliseconds. - */ - inline - void setSustainTime(unsigned int msec) - { - setTime(&sustain, msec); - } - - - - /** Set the release time of the ADSR in milliseconds. - The actual time taken will be resolved within the resolution of CONTROL_RATE. - @param value the unsigned int release time in milliseconds. - */ - inline - void setReleaseTime(unsigned int msec) - { - setTime(&release, msec); - } - - - - /** Set the attack, decay and release times of the ADSR in milliseconds. - The actual times will be resolved within the resolution of CONTROL_RATE. - @param attack_ms the new attack time in milliseconds. - @param decay_ms the new decay time in milliseconds. - @param decay_ms the new sustain time in milliseconds. - @param release_ms the new release time in milliseconds. - */ - inline - void setTimes(unsigned int attack_ms, unsigned int decay_ms, unsigned int sustain_ms, unsigned int release_ms) - { - setAttackTime(attack_ms); - setDecayTime(decay_ms); - setSustainTime(sustain_ms); - setReleaseTime(release_ms); - } - - -}; - -#endif /* ADSR_H_ */ - diff --git a/CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino b/CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino deleted file mode 100644 index e5b705b..0000000 --- a/CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino +++ /dev/null @@ -1,426 +0,0 @@ - -/* - * FM+LFO notes from 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 - * - * Massively based on examples by Tim Barrass 2013nextenv - * This example code is in the public domain. - * - * sgreen/dpape/dgreen - modified to bring together harmonic FM, LFO, portamento, - * mono note priority, & Rock Band keytar controls - http://www.cheapsynth.com/ - * - * 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 - * - On Rock Band keytar, switch between patch modes using the big transparent button above -the LEDs, as follows... - -Mode 0 - monophonic FM lead sound with variable modulation harmonics, portamento, modulation depth -on modulation strip, low-frequency oscillator (LFO) speed on pitch bend strip (ie button held down) - -Mode 1 - (2-note polyphonic) Squarewave added to squared-off sinewave at variable harmonics, -pitch bend strip adjusts "duty cycle", ie how much the squared sine is On vs Off - -Mode 2 - (2-note polyphonic) Actually sawtooth wave, pitch bend strip gives chorus-y effect by -variably detuning one of the current notes - -Mode 3 - (2-note "polyphonic") Squarewave XOR'd with sinewaves at variable harmonics, similar fake-LFO -detuning on pitch bend strip, massive upwards zoom on both notes when no portamento! - -Mode 4 - intentionally left blank so you know where you are - -Standard controls: - -Different modulation freq harmonics on the right-hand corner up and down keys between octave up -and octave down (all modes except Mode 2). - -Portamento speed on Back arrow to the left of big transparent Mode button, toggles between no portamento -(ie 2-note polyphony in modes that support it), 10ms fast glide between notes, 400ms slow glide. - -[updated: this note decay now doesn't do anything as I've moved everything to "slow" ADSR..!] -Note decay length on forward arrow to the right of big transparent Mode button (currently applies -to less computationally demanding envelopes in Mode 0 and 2), toggles between short/medium/long -*/ - -#include <MIDI.h> -#include <MozziGuts.h> -#include <Oscil.h> /oscSaw/ oscillator template -#include <Line.h> // for envelope -#include <tables/cos2048_int8.h> // table for Oscils to play -#include <tables/saw1024_int8.h> // table for Oscils to play -#include <tables/smoothsquare8192_int8.h> // NB portamento requires table > 512 size? -#include <mozzi_midi.h> -#include <ADSRslow.h> -#include <mozzi_fixmath.h> -#include <LowPassFilter.h> -#include <Portamento.h> -#include <Ead.h> - -// use #define for CONTROL_RATE, not a constant -#define CONTROL_RATE 128 // powers of 2 please - -// Mozzi example uses COS waves for carrier and modulator -// DP: "gets brutal very fast" (esp in higher octaves) if you use a saw/square carrier -// gets subtly more brutal if you use smaller wavetables (fewer samples per cycle) -Oscil<SMOOTHSQUARE8192_NUM_CELLS, AUDIO_RATE> oscCarrier(SMOOTHSQUARE8192_DATA); // huge file :( -Oscil<SMOOTHSQUARE8192_NUM_CELLS, AUDIO_RATE> oscSquare2(SMOOTHSQUARE8192_DATA); // huge file :( -Oscil<COS2048_NUM_CELLS, AUDIO_RATE> oscModulator(COS2048_DATA); -Oscil<COS2048_NUM_CELLS, AUDIO_RATE> oscModulator2(COS2048_DATA); -Oscil<COS2048_NUM_CELLS, AUDIO_RATE> oscLFO(COS2048_DATA); -Oscil<SAW1024_NUM_CELLS, AUDIO_RATE> oscSaw1(SAW1024_DATA); -Oscil<SAW1024_NUM_CELLS, AUDIO_RATE> oscSaw2(SAW1024_DATA); - -// envelope generator -ADSR <CONTROL_RATE> envelope; -ADSR <CONTROL_RATE> envelope2; -Ead kEnvelopeGuitar1(CONTROL_RATE); //left in here for future use but currently not vital? -Ead kEnvelopeGuitar2(CONTROL_RATE); - -Portamento <CONTROL_RATE>aPortamento; -//LowPassFilter lpf; // LPF left over from earlier versions of code, may reinstate! -//int crushCtrl = 0; // ditto bitcrush - -#define LED 13 // to see if MIDI is being recieved - -long vibrato=0; -long vibrato2=0; -int chanGain1; -int chanGain2; -int LFO; -unsigned int carrierXmodDepth1; -unsigned int carrierXmodDepth2; - -// initialise globals (some eg amplitude no longer used) -int maxmode=4; -float carrierFreq = 10.f; -float carrier2 = 10.f; -float modFreq = 10.f; -float modFreq2 = 10.f; -float modDepth = 0; -float amplitude = 0.f; -float modOffset =1; -byte lastnote1=0; -byte lastnote2=0; -int nextenv=1; -byte portSpeed=0; -byte noteLength=1; -float shifted=0.1f; -byte mode=0; -unsigned long harmonic; -int squaredsin1; -int squaredsin2; -int bitmask=64; -int multiplier; - -float modOffsets[] = { -4,3.5,3,2.5,2,1.5,1,0.6666666,0.5,0.4,0.3333333,0.2857,0.25,0,0,0,0,0,0, -}; // harmonic ratios corresponding to DP's preferred intervals of 7, 12, 7, 19, 24, 0, 12, -12, etc - -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); - MIDI.setHandlePitchBend(HandlePitchBend); // Put only the name of the function - MIDI.setHandleProgramChange(HandleProgramChange); - MIDI.setHandleContinue(HandleContinue); - MIDI.setHandleStop(HandleStop); - MIDI.setHandleStart(HandleStart); - - envelope.setADLevels(127,100); - envelope.setTimes(20,20,20000,1200); // 20000 is so the note will sustain 20 seconds unless a noteOff comes - envelope2.setADLevels(127,100); - envelope2.setTimes(20,20,20000,1200); // 20000 is so the note will sustain 20 seconds unless a noteOff comes - - kEnvelopeGuitar1.set(20, 4000); - kEnvelopeGuitar2.set(20, 4000); - - aPortamento.setTime(0u); -// lpf.setResonance(200); -// lpf.setCutoffFreq(255); - oscLFO.setFreq(10); // default LFO frequency - - startMozzi(CONTROL_RATE); -} - - -void UpdateFreqs() -{ - oscCarrier.setFreq(carrierFreq); - oscSaw1.setFreq(carrierFreq); - carrierXmodDepth1=carrierFreq * modDepth; - modFreq=(carrierFreq * modOffset / (64/bitmask) ); - - oscSquare2.setFreq(carrier2); - oscSaw2.setFreq(carrier2 * (1.0f + ((shifted -0.1f) / 384)) ); - carrierXmodDepth2=carrier2 * modDepth; - modFreq2=(carrier2 * modOffset / (64/bitmask) ); - - oscModulator.setFreq( modFreq ); - oscModulator2.setFreq( modFreq2 ); -} - -void HandleProgramChange (byte channel, byte number) -{ - modOffset = modOffsets[number%15]; - UpdateFreqs(); -// modFreq=(carrierFreq * modOffset / (64/bitmask) ); -//dreadful hack as ProgramChange returns absolute prog number 0-127, "gets stuck" at upper/lower ends -} - -void HandleNoteOn(byte channel, byte note, byte velocity) { - aPortamento.start(note); -// carrierFreq=(mtof(note)); // simple but less accurate frequency -// osc.setFreq_Q16n16(Q16n16_mtof(Q8n0_to_Q16n16(note))); // accurate frequency -if ( portSpeed) - {nextenv=1; lastnote2=999;} - - if (nextenv==1) - { - lastnote1=note; - envelope.noteOn(); -kEnvelopeGuitar1.start(); - digitalWrite(LED,HIGH); - nextenv=2; // send next note to other envelope, unless overridden in the meantime - - carrierFreq = Q16n16_to_float (Q16n16_mtof(Q8n0_to_Q16n16(lastnote1))); - UpdateFreqs(); - } - else - { - lastnote2=note; - envelope2.noteOn(); -kEnvelopeGuitar2.start(); - digitalWrite(LED,HIGH); - nextenv=1; // send next note to other envelope, unless overridden in the meantime - - carrier2 = Q16n16_to_float (Q16n16_mtof(Q8n0_to_Q16n16(lastnote2))); - UpdateFreqs(); - } - -} - -void HandleStop () { //this is the Back button on the Xbox keyboard - portSpeed++; - {if (portSpeed>2) portSpeed = 0;} - aPortamento.setTime( (portSpeed*portSpeed*100) ); // values of 0,100,400 milliseconds? (next 900) -} - -void HandleStart () { //CURRENTLY NOT USED - noteLength=(noteLength+1)%3; // loop from 0-2 - kEnvelopeGuitar1.set(20, (noteLength+1)*(noteLength+1)*(noteLength+1)*500 ); - kEnvelopeGuitar2.set(20, (noteLength+1)*(noteLength+1)*(noteLength+1)*500 ); - //cube into values around 500, 4000, 13500 -} - -void HandleContinue () { // the big round button on all keytars - mode++; - {if (mode>maxmode) mode = 0;} //currently has a silent mode at the end so you know where you are : ) -} - -void HandleNoteOff(byte channel, byte note, byte velocity) { - digitalWrite(LED,LOW); // may as well switch LED off - - if ( (note == lastnote1) ) //kill envelope if prev note released - { - envelope.noteOff(); - if (chanGain2) {nextenv=1;} -} - - if ( (note == lastnote2) ) - {envelope2.noteOff(); - if (chanGain1) {nextenv=2;} - } - -} - - -void HandlePitchBend (byte channel, int bend) -{ -//bend value from +/-8192, translate to 0.1-8 Hz? -shifted= float ((bend+8500) /2048.f ) +0.1f; -if (mode==0) {oscLFO.setFreq(shifted); } -if (mode==1) - { - bitmask= 1 << (int (shifted)); multiplier=7-(int (shifted)); - UpdateFreqs(); - } - else {bitmask=64;} - -if (mode==2) { oscSaw2.setFreq(carrier2 * (1.0f + ((shifted -0.1f) / 384)) ); } -} - -void HandleControlChange (byte channel, byte number, byte value) -{ -// http://www.indiana.edu/~emusic/cntrlnumb.html - -/* -Serial.end(); // sample debug code to check values through (noisy) terminal interface -Serial.begin(38400); -Serial.print(" number:"); -Serial.print(number); -Serial.print(" value:"); -Serial.println( value ); -Serial.println(); -Serial.end(); -Serial.begin(31250); -*/ - - switch(number) { -// case 3: // could trap different controller IDs here - - case 1: // modulation wheel - //lpf.setResonance(value*2); - - //WORKING MODDEPTH CONTROLLER - float divided= float (value /46.f ); // values=0-127, map to 0-2.75 - modDepth = (divided * divided); // square to 0-8 - if (modDepth>7.5) {modDepth=7.5;} // sanity check (prob unnecessary) - if (modDepth<0.2) {modDepth=0;} // easier to get pure tone - UpdateFreqs(); - break; - } -} - -void updateControl(){ - MIDI.read(); - envelope.update(); - envelope2.update(); - - chanGain1 = envelope.next(); - chanGain2 = envelope2.next(); - -// chanGain1 = kEnvelopeGuitar1.next(); -// chanGain2 = kEnvelopeGuitar2.next(); - if(chanGain1 > 120) chanGain1 = 120; - if(chanGain2 > 120) chanGain2 = 120; - -if ( portSpeed ) - { - carrierFreq = Q16n16_to_float ( aPortamento.next() ); //NB presumably returns frequency as Q16n16 - UpdateFreqs(); - } - -if (mode==3) - { - modFreq *= 1.0f +(shifted / 384); // generates fake LFO via detuning mod osc - modFreq2*= 1.0f +(shifted / 384); // generates fake LFO via detuning mod osc -// modFreq2*= 1 + (shifted -0.1f) / 384); // generates fake LFO via detuning mod osc - oscModulator.setFreq( modFreq ); - oscModulator2.setFreq( modFreq2 ); - } - -} - -// strip the low bits off! - not used in current implementation -int bitCrush(int x, int a) -{ - return (x>>a)<<a; -} - -int updateAudio(){ - - switch(mode) - { - case 0: // FM with LFO -//NB this multiplication split into 2 chunks to preserve small precise values? -LFO=oscLFO.next(); -vibrato = ( LFO * oscModulator.next() ) >>7 ; -vibrato*= carrierXmodDepth1; -vibrato2 = ( LFO * oscModulator2.next() ) >>7 ; -vibrato2*= carrierXmodDepth2; -return (int) ( - (oscCarrier.phMod( vibrato >>3 ) * chanGain1 ) - + (oscSquare2.phMod( vibrato2>>3 ) * chanGain2 ) - ) >> 9; -// >> 9 = 9 fast binary divisions by 2 = divide by 512 - break; - - case 1: // ADDING square + "converted" sine -//squaredsin1= ( (oscModulator.next() & 0b0000000001000000)-1 ) <<1; -squaredsin1= ( (oscModulator.next() & bitmask) ) <<multiplier; -squaredsin2= ( (oscModulator2.next() & bitmask) ) <<multiplier; -return (int) -( - ( ( (oscCarrier.next() + squaredsin1 )>>1 )* chanGain1 ) -+ ( ( (oscSquare2.next() + squaredsin2 )>>1 )* chanGain2 ) -) >> 8; - break; - - case 2: // 2 tri poly -return (int)( - ( oscSaw1.next() *chanGain1 ) - + ( oscSaw2.next() *chanGain2 ) - ) >> 9; - break; - - case 3: // STARTED AS 2 sq poly XORd with respective sines, now big whoop -return (int)( - ( (oscCarrier.next()^oscModulator.next()) * chanGain1 ) - + ( (oscSquare2.next()^oscModulator2.next())* chanGain2 ) - ) >> 8; -//return (int) ( (oscCarrier.next() | ( (oscModulator.next() * int (modDepth+1))>>3 ) ) * (envelope.next() ) ) >> 7; - break; - - case 13: // 2 sq poly ORd with respective sines -return (int) ( ( (oscCarrier.next()|oscModulator.next() ) * envelope.next()) + ( (oscSquare2.next()|oscLFO.next() ) * envelope2.next()) ) >> 8; -//return (int) ( (oscCarrier.next() | ( (oscModulator.next() * int (modDepth+1))>>3 ) ) * (envelope.next() ) ) >> 7; - break; - - - case 6: // 2 sq poly -return (int) ( (oscCarrier.next() * envelope.next()) + (oscSquare2.next() * envelope2.next()) ) >> 8; -//return (int) ( (oscCarrier.next() | ( (oscModulator.next() * int (modDepth+1))>>3 ) ) * (envelope.next() ) ) >> 7; - break; - -//case 5 intentionally left blank - -/* - case 6: // ADDING squares -return (int) ( (oscCarrier.next() + oscSquare2.next() ) * (envelope.next() ) ) >> 8; -//return (int) ( (oscCarrier.next() | ( (oscModulator.next() * int (modDepth+1))>>3 ) ) * (envelope.next() ) ) >> 7; - break; -*/ -// case 1: // AND with fake LFO -//all this 'harmonic' stuff a failed attempt to use the same LFO as FM, causes massive beat f/x? -//harmonic = ( oscLFO.next() * oscModulator.next() ) >> 7; -//harmonic = ( harmonic * int (modDepth+1) ) >>3 ; -//return (int) ( (oscCarrier.next() ^ ( harmonic )) * (envelope.next() ) ) >> 7; -//return (int) ( (oscCarrier.next() & ( (oscModulator.next() * int (modDepth+1))>>3 ) ) * (envelope.next() ) ) >> 7; -// break; - -/* case 3: // OR with fake LFO -//int harmonic = ( oscLFO.next() * oscModulator.next() ) >>7; -//return (int) ( (oscCarrier.next() | ( (oscModulator.next() * int (modDepth+1))>>3 ) ) * (envelope.next() ) ) >> 7; -// break; - case 4: // XOR with fake LFO -//int harmonic = ( oscLFO.next() * oscModulator.next() ) >>7; -return (int) ( (oscCarrier.next() ^ ( (oscModulator.next() * int (modDepth+1))>>3 ) ) * (envelope.next() ) ) >> 7; - break; - */ - } - -// OLD CODE FROM BITCRUNCHED SINEWAVE, DIFF WAYS OF DOING THAT -// 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); -// return x; -} - - -void loop() { - audioHook(); // required here -} - |