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-rwxr-xr-xmain.cpp76
-rwxr-xr-xmaximilian.h7
-rw-r--r--ofxMaxim/ofxMaxim/libs/maximilian.cpp328
-rwxr-xr-xofxMaxim/ofxMaxim/libs/maximilian.h69
4 files changed, 379 insertions, 101 deletions
diff --git a/main.cpp b/main.cpp
index 112c5e8..ad24cf4 100755
--- a/main.cpp
+++ b/main.cpp
@@ -1,55 +1,61 @@
#include "maximilian.h"
-//this tutorial explains how to use the maxiEnv
+//Bizarelly, this sounds a little bit like Kraftwerk's 'Metropolis', although it isn't. Funny that.
-maxiSample sound1;
+maxiOsc sound,bass,timer,mod,lead,lead2,leadmod;//here are the synth bits
+maxiEnv envelope, leadenvelope;//some envelopes
+maxiFilter filter, filter2;//some filters
+maxiDelayline delay;//a delay
+convert mtof;//a method for converting midi notes to frequency
+double bassout,leadout, delayout;//some variables to hold the data and pass it around
+int trigger, trigger2, newnote;//some control variables
+int currentCount,lastCount,playHead=0, currentChord=0;//some other control variables
+int pitch[8]={57,57,59,60};//the bassline for the arpeggio
+int chord[8]={0,0,7,2,5,5,0,0};//the root chords for the arpeggio
+float currentPitch,leadPitch;//the final pitch variables
-maxiOsc timer,snarePhase; //and a timer
+//here's the lead line trigger array, followed by the pitches
+int leadLineTrigger[256]={1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+int leadLinePitch[15]={69,67,65,64,67,66,64,62,65,64,62,57,55,60,57};
-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;
-
-double sampleOut;
void setup() {//some inits
- //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.
-
-
- printf("Summary:\n%s", sound1.getSummary());//get info on samples if you like.
- //beats.getLength();
}
void play(double *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
-
+ currentCount=(int)timer.phasor(9);//this sets up a metronome that ticks every so often
if (lastCount!=currentCount) {//if we have a new timer int this sample, play the sound
-
- sampleTrigger=sequence[playHead%16];
+ trigger=1;//play the arpeggiator line
+ trigger2=leadLineTrigger[playHead%256];//play the lead line
+ if (trigger2==1) {//if we are going to play a note
+ leadPitch=mtof.mtof(leadLinePitch[newnote]);//get the next pitch val
+ newnote++;//and iterate
+ if (newnote>14) {
+ newnote=0;//make sure we don't go over the edge of the array
+ }
+ }
+ currentPitch=mtof.mtof(pitch[(playHead%4)]+chord[currentChord%8]);//write the frequency val into currentPitch
playHead++;//iterate the playhead
- lastCount=0;//reset the metrotest
-
+ if (playHead%32==0) {//wrap every 4 bars
+ currentChord++;//change the chord
+ }
+ //cout << "tick\n";//the clock ticks
+ lastCount=0;//set lastCount to 0
}
- //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.play(1.), 0.1, 0.9999, 1, sampleTrigger); //
-
- output[0]=sampleOut;//left channel
- output[1]=sampleOut;//right channel
+ bassout=filter2.lores(envelope.adsr(bass.saw(currentPitch*0.5)+sound.pulse(currentPitch*0.5,mod.phasor(1)),1,0.9995, 0.25, 0.9995, 1, trigger),9250,2);//new, simple ADSR.
+ leadout=filter.lores(leadenvelope.ar(lead2.saw(leadPitch*4)+lead.pulse(leadPitch+(leadmod.sinebuf(1.9)*1.5), 0.6), 0.00005, 0.999975, 50000, trigger2),5900,10);//leadline
+
+ delayout=(leadout+(delay.dl(leadout, 14000, 0.8)*0.5))/2;//add some delay
+
+ if(trigger!=0)trigger=0;//set the trigger to off if you want it to trigger immediately next time.
+
+
+ output[0]=(bassout+delayout)/2;//sum output
+ output[1]=(bassout+delayout)/2;
- sampleTrigger = 0;//set trigger to 0 at the end of each sample to guarantee retriggering.
-
} \ No newline at end of file
diff --git a/maximilian.h b/maximilian.h
index 5062ba5..4ec75d1 100755
--- a/maximilian.h
+++ b/maximilian.h
@@ -137,6 +137,7 @@ class maxiFilter {
double z;//pole
double c;//filter coefficient
public:
+ maxiFilter():x(0.0), y(0.0), z(0.0), c(0.0){};
double cutoff;
double resonance;
double lores(double input,double cutoff1, double resonance);
@@ -173,12 +174,12 @@ private:
int myByteRate;
short myBlockAlign;
short myBitsPerSample;
- int myDataSize;
double position;
double speed;
double output;
public:
+ int myDataSize;
short myChannels;
int mySampleRate;
long length;
@@ -191,7 +192,7 @@ public:
~maxiSample()
{
- delete myData;
+ if (myData) delete[] myData;
myChunkSize = NULL;
mySubChunk1Size = NULL;
myFormat = NULL;
@@ -203,7 +204,7 @@ public:
myDataSize = NULL;
}
-// maxiSample();
+ maxiSample():myData(NULL){};
bool load(string fileName, int channel=0);
diff --git a/ofxMaxim/ofxMaxim/libs/maximilian.cpp b/ofxMaxim/ofxMaxim/libs/maximilian.cpp
index 10c13ca..3741173 100644
--- a/ofxMaxim/ofxMaxim/libs/maximilian.cpp
+++ b/ofxMaxim/ofxMaxim/libs/maximilian.cpp
@@ -47,14 +47,16 @@ int maxiSettings::bufferSize = 1024;
double sineBuffer[514]={0,0.012268,0.024536,0.036804,0.049042,0.06131,0.073547,0.085785,0.097992,0.1102,0.12241,0.13455,0.1467,0.15884,0.17093,0.18301,0.19507,0.20709,0.21909,0.23105,0.24295,0.25485,0.26669,0.2785,0.29025,0.30197,0.31366,0.32529,0.33685,0.34839,0.35986,0.37128,0.38266,0.39395,0.40521,0.41641,0.42752,0.4386,0.44958,0.46051,0.47137,0.48215,0.49286,0.50351,0.51407,0.52457,0.53497,0.54529,0.55554,0.5657,0.57578,0.58575,0.59567,0.60547,0.6152,0.62482,0.63437,0.6438,0.65314,0.66238,0.67151,0.68057,0.68951,0.69833,0.70706,0.7157,0.72421,0.7326,0.74091,0.74908,0.75717,0.76514,0.77298,0.7807,0.7883,0.79581,0.80316,0.81042,0.81754,0.82455,0.83142,0.8382,0.84482,0.85132,0.8577,0.86392,0.87006,0.87604,0.88187,0.8876,0.89319,0.89862,0.90396,0.90912,0.91415,0.91907,0.92383,0.92847,0.93295,0.93729,0.9415,0.94556,0.94949,0.95325,0.95691,0.96039,0.96375,0.96692,0.97,0.9729,0.97565,0.97827,0.98074,0.98306,0.98523,0.98724,0.98914,0.99084,0.99243,0.99387,0.99515,0.99628,0.99725,0.99808,0.99875,0.99927,0.99966,0.99988,0.99997,0.99988,0.99966,0.99927,0.99875,0.99808,0.99725,0.99628,0.99515,0.99387,0.99243,0.99084,0.98914,0.98724,0.98523,0.98306,0.98074,0.97827,0.97565,0.9729,0.97,0.96692,0.96375,0.96039,0.95691,0.95325,0.94949,0.94556,0.9415,0.93729,0.93295,0.92847,0.92383,0.91907,0.91415,0.90912,0.90396,0.89862,0.89319,0.8876,0.88187,0.87604,0.87006,0.86392,0.8577,0.85132,0.84482,0.8382,0.83142,0.82455,0.81754,0.81042,0.80316,0.79581,0.7883,0.7807,0.77298,0.76514,0.75717,0.74908,0.74091,0.7326,0.72421,0.7157,0.70706,0.69833,0.68951,0.68057,0.67151,0.66238,0.65314,0.6438,0.63437,0.62482,0.6152,0.60547,0.59567,0.58575,0.57578,0.5657,0.55554,0.54529,0.53497,0.52457,0.51407,0.50351,0.49286,0.48215,0.47137,0.46051,0.44958,0.4386,0.42752,0.41641,0.40521,0.39395,0.38266,0.37128,0.35986,0.34839,0.33685,0.32529,0.31366,0.30197,0.29025,0.2785,0.26669,0.25485,0.24295,0.23105,0.21909,0.20709,0.19507,0.18301,0.17093,0.15884,0.1467,0.13455,0.12241,0.1102,0.097992,0.085785,0.073547,0.06131,0.049042,0.036804,0.024536,0.012268,0,-0.012268,-0.024536,-0.036804,-0.049042,-0.06131,-0.073547,-0.085785,-0.097992,-0.1102,-0.12241,-0.13455,-0.1467,-0.15884,-0.17093,-0.18301,-0.19507,-0.20709,-0.21909,-0.23105,-0.24295,-0.25485,-0.26669,-0.2785,-0.29025,-0.30197,-0.31366,-0.32529,-0.33685,-0.34839,-0.35986,-0.37128,-0.38266,-0.39395,-0.40521,-0.41641,-0.42752,-0.4386,-0.44958,-0.46051,-0.47137,-0.48215,-0.49286,-0.50351,-0.51407,-0.52457,-0.53497,-0.54529,-0.55554,-0.5657,-0.57578,-0.58575,-0.59567,-0.60547,-0.6152,-0.62482,-0.63437,-0.6438,-0.65314,-0.66238,-0.67151,-0.68057,-0.68951,-0.69833,-0.70706,-0.7157,-0.72421,-0.7326,-0.74091,-0.74908,-0.75717,-0.76514,-0.77298,-0.7807,-0.7883,-0.79581,-0.80316,-0.81042,-0.81754,-0.82455,-0.83142,-0.8382,-0.84482,-0.85132,-0.8577,-0.86392,-0.87006,-0.87604,-0.88187,-0.8876,-0.89319,-0.89862,-0.90396,-0.90912,-0.91415,-0.91907,-0.92383,-0.92847,-0.93295,-0.93729,-0.9415,-0.94556,-0.94949,-0.95325,-0.95691,-0.96039,-0.96375,-0.96692,-0.97,-0.9729,-0.97565,-0.97827,-0.98074,-0.98306,-0.98523,-0.98724,-0.98914,-0.99084,-0.99243,-0.99387,-0.99515,-0.99628,-0.99725,-0.99808,-0.99875,-0.99927,-0.99966,-0.99988,-0.99997,-0.99988,-0.99966,-0.99927,-0.99875,-0.99808,-0.99725,-0.99628,-0.99515,-0.99387,-0.99243,-0.99084,-0.98914,-0.98724,-0.98523,-0.98306,-0.98074,-0.97827,-0.97565,-0.9729,-0.97,-0.96692,-0.96375,-0.96039,-0.95691,-0.95325,-0.94949,-0.94556,-0.9415,-0.93729,-0.93295,-0.92847,-0.92383,-0.91907,-0.91415,-0.90912,-0.90396,-0.89862,-0.89319,-0.8876,-0.88187,-0.87604,-0.87006,-0.86392,-0.8577,-0.85132,-0.84482,-0.8382,-0.83142,-0.82455,-0.81754,-0.81042,-0.80316,-0.79581,-0.7883,-0.7807,-0.77298,-0.76514,-0.75717,-0.74908,-0.74091,-0.7326,-0.72421,-0.7157,-0.70706,-0.69833,-0.68951,-0.68057,-0.67151,-0.66238,-0.65314,-0.6438,-0.63437,-0.62482,-0.6152,-0.60547,-0.59567,-0.58575,-0.57578,-0.5657,-0.55554,-0.54529,-0.53497,-0.52457,-0.51407,-0.50351,-0.49286,-0.48215,-0.47137,-0.46051,-0.44958,-0.4386,-0.42752,-0.41641,-0.40521,-0.39395,-0.38266,-0.37128,-0.35986,-0.34839,-0.33685,-0.32529,-0.31366,-0.30197,-0.29025,-0.2785,-0.26669,-0.25485,-0.24295,-0.23105,-0.21909,-0.20709,-0.19507,-0.18301,-0.17093,-0.15884,-0.1467,-0.13455,-0.12241,-0.1102,-0.097992,-0.085785,-0.073547,-0.06131,-0.049042,-0.036804,-0.024536,-0.012268,0,0.012268
};
+int mtofarray[129]={0, 8.661957, 9.177024, 9.722718, 10.3, 10.913383, 11.562325, 12.25, 12.978271, 13.75, 14.567617, 15.433853, 16.351599, 17.323914, 18.354048, 19.445436, 20.601723, 21.826765, 23.124651, 24.5, 25.956543, 27.5, 29.135235, 30.867706, 32.703197, 34.647827, 36.708096, 38.890873, 41.203445, 43.65353, 46.249302, 49., 51.913086, 55., 58.27047, 61.735413, 65.406395, 69.295654, 73.416191, 77.781746, 82.406891, 87.30706, 92.498604, 97.998856, 103.826172, 110., 116.540939, 123.470825, 130.81279, 138.591309, 146.832382, 155.563492, 164.813782, 174.61412, 184.997208, 195.997711, 207.652344, 220., 233.081879, 246.94165, 261.62558, 277.182617,293.664764, 311.126984, 329.627563, 349.228241, 369.994415, 391.995422, 415.304688, 440., 466.163757, 493.883301, 523.25116, 554.365234, 587.329529, 622.253967, 659.255127, 698.456482, 739.988831, 783.990845, 830.609375, 880., 932.327515, 987.766602, 1046.502319, 1108.730469, 1174.659058, 1244.507935, 1318.510254, 1396.912964, 1479.977661, 1567.981689, 1661.21875, 1760., 1864.655029, 1975.533203, 2093.004639, 2217.460938, 2349.318115, 2489.015869, 2637.020508, 2793.825928, 2959.955322, 3135.963379, 3322.4375, 3520., 3729.31, 3951.066406, 4186.009277, 4434.921875, 4698.63623, 4978.031738, 5274.041016, 5587.651855, 5919.910645, 6271.926758, 6644.875, 7040., 7458.620117, 7902.132812, 8372.018555, 8869.84375, 9397.272461, 9956.063477, 10548.082031, 11175.303711, 11839.821289, 12543.853516, 13289.75};
+
void setup();//use this to do any initialisation if you want.
void play(double *channels);//run dac!
maxiOsc::maxiOsc(){
phase = 0.0;
-// memset(phases,0,500);
-// memset(freqs,0,500);
+ // memset(phases,0,500);
+ // memset(freqs,0,500);
}
double maxiOsc::noise() {
@@ -64,6 +66,11 @@ double maxiOsc::noise() {
return(output);
}
+void maxiOsc::phaseReset(double phaseIn) {
+ phase=phaseIn;
+
+}
+
double maxiOsc::sinewave(double frequency) {
output=sin (phase*(TWOPI));
if ( phase >= 1.0 ) phase -= 1.0;
@@ -162,14 +169,13 @@ double maxiOsc::saw(double frequency) {
}
-double maxiOsc::triangle(double frequency, double phase) {
- output=tri*2;
+double maxiOsc::triangle(double frequency) {
if ( phase >= 1.0 ) phase -= 1.0;
- phase += (1./(maxiSettings::sampleRate/(frequency*chandiv)));
+ phase += (1./(maxiSettings::sampleRate/(frequency)));
if (phase <= 0.5 ) {
- tri = phase;
- } else {
- tri =(1-phase);
+ output =((phase)*4)-1;
+ } else {
+ output =((0.5-phase)*4)-1;
}
return(output);
@@ -177,36 +183,54 @@ double maxiOsc::triangle(double frequency, double phase) {
//I like this.
double maxiEnvelope::line(int numberofsegments,double segments[1000]) {
- period=2./(segments[valindex+1]*0.004);
- nextval=segments[valindex+2];
- currentval=segments[valindex];
- if (currentval-amplitude > 0.0000001 && valindex < numberofsegments) {
- amplitude += ((currentval-startval)/(maxiSettings::sampleRate/period));
- } else if (currentval-amplitude < -0.0000001 && valindex < numberofsegments) {
- amplitude -= (((currentval-startval)*(-1))/(maxiSettings::sampleRate/period));
- } else if (valindex >numberofsegments-1) {
- valindex=numberofsegments-2;
- } else {
- valindex=valindex+2;
- startval=currentval;
+ if (isPlaying==1) {//only make a sound once you've been triggered
+
+ period=2./(segments[valindex+1]*0.004);
+ nextval=segments[valindex+2];
+ currentval=segments[valindex];
+ if (currentval-amplitude > 0.0000001 && valindex < numberofsegments) {
+ amplitude += ((currentval-startval)/(maxiSettings::sampleRate/period));
+ } else if (currentval-amplitude < -0.0000001 && valindex < numberofsegments) {
+ amplitude -= (((currentval-startval)*(-1))/(maxiSettings::sampleRate/period));
+ } else if (valindex >numberofsegments-1) {
+ valindex=numberofsegments-2;
+ } else {
+ valindex=valindex+2;
+ startval=currentval;
+ }
+ output=amplitude;
+
+ }
+ else {
+ output=0;
+
}
- output=amplitude;
- return(output);
+ return(output);
}
//and this
void maxiEnvelope::trigger(int index, double amp) {
+ isPlaying=1;//ok the envelope is being used now.
valindex=index;
amplitude=amp;
}
//and this
+
+maxiDelayline::maxiDelayline() {
+ memory[88200]=NULL;
+
+}
+
+
double maxiDelayline::dl(double input, int size, double feedback) {
- if ( phase >=size ) phase = 0;
+ if ( phase >=size ) {
+ phase = 0;
+ }
memory[phase]=(memory[phase]*feedback)+(input*feedback)*0.5;
phase+=1;
- output=memory[phase+1];
+ output=memory[phase];
return(output);
}
@@ -237,7 +261,7 @@ double maxiFilter::hipass(double input, double cutoff) {
double maxiFilter::lores(double input,double cutoff1, double resonance) {
cutoff=cutoff1*0.5;
if (cutoff<10) cutoff=10;
- if (cutoff>(maxiSettings::sampleRate*0.25)) cutoff=(maxiSettings::sampleRate*0.25);
+ if (cutoff>(maxiSettings::sampleRate*0.5)) cutoff=(maxiSettings::sampleRate*0.5);
if (resonance<1.) resonance = 1.;
z=cos(TWOPI*cutoff/maxiSettings::sampleRate);
c=2-2*z;
@@ -253,7 +277,7 @@ double maxiFilter::lores(double input,double cutoff1, double resonance) {
double maxiFilter::hires(double input,double cutoff1, double resonance) {
cutoff=cutoff1*0.5;
if (cutoff<10) cutoff=10;
- if (cutoff>(maxiSettings::sampleRate*0.25)) cutoff=(maxiSettings::sampleRate*0.25);
+ if (cutoff>(maxiSettings::sampleRate*0.5)) cutoff=(maxiSettings::sampleRate*0.5);
if (resonance<1.) resonance = 1.;
z=cos(TWOPI*cutoff/maxiSettings::sampleRate);
c=2-2*z;
@@ -323,8 +347,9 @@ double *maxiMix::ambisonic(double input,double eight[8],double x,double y,double
}
-bool maxiSample::load(string fileName) {
+bool maxiSample::load(string fileName, int channel) {
myPath = fileName;
+ readChannel=channel;
return read();
}
@@ -337,10 +362,8 @@ bool maxiSample::read()
bool result;
ifstream inFile( myPath.c_str(), ios::in | ios::binary);
result = inFile;
-
if (inFile) {
bool datafound = false;
-
inFile.seekg(4, ios::beg);
inFile.read( (char*) &myChunkSize, 4 ); // read the ChunkSize
@@ -389,6 +412,16 @@ bool maxiSample::read()
length=myDataSize*(0.5/myChannels);
inFile.close(); // close the input file
+ if (myChannels>1) {
+ int position=0;
+ int channel=readChannel*2;
+ for (int i=channel;i<myDataSize+6;i+=(myChannels*2)) {
+ myData[position]=myData[i];
+ myData[position+1]=myData[i+1];
+ position+=2;
+ }
+ }
+
}else {
cout << "ERROR: Could not load sample: " <<myPath << endl;
}
@@ -399,18 +432,19 @@ bool maxiSample::read()
double maxiSample::play() {
-// long length=myDataSize*(1./myChannels);
+ // long length=myDataSize*(1./myChannels);
double remainder;
short* buffer = (short *)myData;
position=(position+1);
remainder = position - (long) position;
if ((long) position>length) position=0;
- output = (double) ((1-remainder) * buffer[1+ (long) position] + remainder * buffer[2+(long) position])/32767;//linear interpolation
+ output =
+ (double) ((1-remainder) * buffer[1+ (long) position] + remainder * buffer[2+(long) position])/32767;//linear interpolation
return(output);
}
double maxiSample::playOnce() {
-// long length=myDataSize*(0.5/myChannels);
+ // long length=myDataSize*(0.5/myChannels);
double remainder;
short* buffer = (short *)myData;
position=(position+1);
@@ -419,14 +453,27 @@ double maxiSample::playOnce() {
output = (double) ((1-remainder) * buffer[1+ (long) position] + remainder * buffer[2+(long) position])/32767;//linear interpolation
else
output=0;
+
+ return(output);
+}
+double maxiSample::playOnce(double speed) {
+ double remainder;
+ //long a,b;
+ // long length=myDataSize*0.5;
+ short* buffer = (short *)myData;
+ position=position+((speed*chandiv*myChannels)/(maxiSettings::sampleRate/mySampleRate));
+ if ((long) position<length)
+ output = (double) ((1-remainder) * buffer[1+ (long) position] + remainder * buffer[2+(long) position])/32767;//linear interpolation
+ else
+ output=0;
return(output);
}
double maxiSample::play(double speed) {
double remainder;
long a,b;
-// long length=myDataSize*0.5;
+ // long length=myDataSize*0.5;
short* buffer = (short *)myData;
position=position+((speed*chandiv*myChannels)/(maxiSettings::sampleRate/mySampleRate));
if (speed >=0) {
@@ -442,29 +489,29 @@ double maxiSample::play(double speed) {
}
if (position+2<length)
{
- b=position+2;
+ b=position+2;
}
else {
- b=length-1;
+ b=length-1;
}
output = (double) ((1-remainder) * buffer[a] + remainder * buffer[b])/32767;//linear interpolation
-} else {
+ } else {
if ((long) position<0) position=length;
remainder = position - floor(position);
if (position-1>=0) {
a=position-1;
-
- }
- else {
- a=0;
- }
- if (position-2>=0) {
- b=position-2;
- }
- else {
- b=0;
- }
+
+ }
+ else {
+ a=0;
+ }
+ if (position-2>=0) {
+ b=position-2;
+ }
+ else {
+ b=0;
+ }
output = (double) ((-1-remainder) * buffer[a] + remainder * buffer[b])/32767;//linear interpolation
}
return(output);
@@ -477,7 +524,7 @@ double maxiSample::play(double frequency, double start, double end) {
double maxiSample::play(double frequency, double start, double end, double &pos) {
double remainder;
// long length=myDataSize;
-
+
if (end>=length) end=length-1;
long a,b;
short* buffer = (short *)myData;
@@ -503,7 +550,7 @@ double maxiSample::play(double frequency, double start, double end, double &pos)
else {
b=length-1;
}
-
+
output = (double) ((1-remainder) * buffer[a] +
remainder * buffer[b])/32767;//linear interpolation
} else {
@@ -547,7 +594,7 @@ double maxiSample::play4(double frequency, double start, double end) {
remainder = position - floor(position);
if (position>0) {
a=buffer[(int)(floor(position))-1];
-
+
} else {
a=buffer[0];
@@ -556,14 +603,14 @@ double maxiSample::play4(double frequency, double start, double end) {
b=buffer[(long) position];
if (position<end-2) {
c=buffer[(long) position+1];
-
+
} else {
c=buffer[0];
-
+
}
if (position<end-3) {
d=buffer[(long) position+2];
-
+
} else {
d=buffer[0];
}
@@ -803,3 +850,178 @@ void maxiSample::getLength() {
}
+/* OK this compressor and gate are now ready to use. The envelopes, like all the envelopes in this recent update, use stupid algorithms for
+ incrementing - consequently a long attack is something like 0.0001 and a long release is like 0.9999.
+ Annoyingly, a short attack is 0.1, and a short release is 0.99. I'll sort this out laters */
+
+double maxiDyn::gate(double input, double threshold, long holdtime, double attack, double release) {
+
+ if (fabs(input)>threshold && attackphase!=1){
+ holdcount=0;
+ releasephase=0;
+ attackphase=1;
+ if(amplitude==0) amplitude=0.01;
+ }
+
+ if (attackphase==1 && amplitude<1) {
+ amplitude*=(1+attack);
+ output=input*amplitude;
+ }
+
+ if (amplitude>=1) {
+ attackphase=0;
+ holdphase=1;
+ }
+
+ if (holdcount<holdtime && holdphase==1) {
+ output=input;
+ holdcount++;
+ }
+
+ if (holdcount==holdtime) {
+ holdphase=0;
+ releasephase=1;
+ }
+
+ if (releasephase==1 && amplitude>0.) {
+ output=input*(amplitude*=release);
+
+ }
+
+ return output;
+}
+
+
+double maxiDyn::compressor(double input, double ratio, double threshold, double attack, double release) {
+
+ if (fabs(input)>threshold && attackphase!=1){
+ holdcount=0;
+ releasephase=0;
+ attackphase=1;
+ if(currentRatio==0) currentRatio=ratio;
+ }
+
+ if (attackphase==1 && currentRatio<ratio-1) {
+ currentRatio*=(1+attack);
+ }
+
+ if (currentRatio>=ratio-1) {
+ attackphase=0;
+ releasephase=1;
+ }
+
+ if (releasephase==1 && currentRatio>0.) {
+ currentRatio*=release;
+ }
+
+ if (input>0.) {
+ output = input/(1.+currentRatio);
+ } else {
+ output = input/(1.+currentRatio);
+ }
+
+ return output*(1+log(ratio));
+}
+
+
+/* Lots of people struggle with the envelope generators so here's a new easy one.
+ It takes mental numbers for attack and release tho. Basically, they're exponentials.
+ I'll map them out later so that it's a bit more intuitive */
+double maxiEnv::ar(double input, double attack, double release, long holdtime, int trigger) {
+
+ if (trigger==1 && attackphase!=1 && holdphase!=1){
+ holdcount=0;
+ releasephase=0;
+ attackphase=1;
+ }
+
+ if (attackphase==1) {
+ amplitude+=(1*attack);
+ output=input*amplitude;
+ }
+
+ if (amplitude>=1) {
+ amplitude=1;
+ attackphase=0;
+ holdphase=1;
+ }
+
+ if (holdcount<holdtime && holdphase==1) {
+ output=input;
+ holdcount++;
+ }
+
+ if (holdcount==holdtime && trigger==1) {
+ output=input;
+ }
+
+ if (holdcount==holdtime && trigger!=1) {
+ holdphase=0;
+ releasephase=1;
+ }
+
+ if (releasephase==1 && amplitude>0.) {
+ output=input*(amplitude*=release);
+
+ }
+
+ return output;
+}
+
+/* and here's a new adsr. It's not bad, very simple to use*/
+
+double maxiEnv::adsr(double input, double attack, double decay, double sustain, double release, long holdtime, int trigger) {
+
+ if (trigger==1 && attackphase!=1 && holdphase!=1 && decayphase!=1){
+ holdcount=0;
+ decayphase=0;
+ sustainphase=0;
+ releasephase=0;
+ attackphase=1;
+ }
+
+ if (attackphase==1) {
+ amplitude+=(1*attack);
+ output=input*amplitude;
+ }
+
+ if (amplitude>=1) {
+ amplitude=1;
+ attackphase=0;
+ decayphase=1;
+ }
+
+ if (decayphase==1) {
+ output=input*(amplitude*=decay);
+ if (amplitude<=sustain) {
+ decayphase=0;
+ holdphase=1;
+ }
+ }
+
+ if (holdcount<holdtime && holdphase==1) {
+ output=input*amplitude;
+ holdcount++;
+ }
+
+ if (holdcount==holdtime && trigger==1) {
+ output=input*amplitude;
+ }
+
+ if (holdcount==holdtime && trigger!=1) {
+ holdphase=0;
+ releasephase=1;
+ }
+
+ if (releasephase==1 && amplitude>0.) {
+ output=input*(amplitude*=release);
+
+ }
+
+ return output;
+}
+
+double convert::mtof(int midinote) {
+
+ return mtofarray[midinote];
+} \ No newline at end of file
diff --git a/ofxMaxim/ofxMaxim/libs/maximilian.h b/ofxMaxim/ofxMaxim/libs/maximilian.h
index 2031940..102d552 100755
--- a/ofxMaxim/ofxMaxim/libs/maximilian.h
+++ b/ofxMaxim/ofxMaxim/libs/maximilian.h
@@ -70,7 +70,7 @@ class maxiOsc {
double endphase;
double output;
double tri;
-
+
public:
maxiOsc();
@@ -79,12 +79,13 @@ public:
double phasor(double frequency);
double phasor(double frequency, double startphase, double endphase);
double saw(double frequency);
- double triangle(double frequency,double phase);
+ double triangle(double frequency);
double square(double frequency);
double pulse(double frequency, double duty);
double noise();
double sinebuf(double frequency);
double sinebuf4(double frequency);
+ void phaseReset(double phaseIn);
};
@@ -96,6 +97,7 @@ class maxiEnvelope {
double startval;
double currentval;
double nextval;
+ int isPlaying;
public:
double line(int numberofsegments,double segments[100]);
@@ -115,9 +117,10 @@ class maxiDelayline {
double memory[88200];
public:
+ maxiDelayline();
double dl(double input, int size, double feedback);
double dl(double input, int size, double feedback, int position);
-
+
};
@@ -160,13 +163,13 @@ public:
};
-
class maxiSample {
private:
string myPath;
int myChunkSize;
int mySubChunk1Size;
+ int readChannel;
short myFormat;
int myByteRate;
short myBlockAlign;
@@ -181,11 +184,12 @@ public:
int mySampleRate;
long length;
void getLength();
-
+
+
char* myData;
// get/set for the Path property
-
+
~maxiSample()
{
if (myData) delete[] myData;
@@ -201,8 +205,8 @@ public:
}
maxiSample():myData(NULL){};
-
- bool load(string fileName);
+
+ bool load(string fileName, int channel=0);
void trigger();
@@ -213,12 +217,14 @@ public:
double playOnce();
+ double playOnce(double speed);
+
double play(double speed);
double play(double frequency, double start, double end, double &pos);
double play(double frequency, double start, double end);
-
+
double play4(double frequency, double start, double end);
double bufferPlay(unsigned char &bufferin,long length);
@@ -304,7 +310,7 @@ public:
val = max(min(val, inMax), inMin);
return pow((outMax / outMin), (val - inMin) / (inMax - inMin)) * outMin;
}
-
+
static double inline explin(double val, double inMin, double inMax, double outMin, double outMax) {
//clipping
val = max(min(val, inMax), inMin);
@@ -314,4 +320,47 @@ public:
};
+class maxiDyn {
+
+
+public:
+ double gate(double input, double threshold=0.9, long holdtime=1, double attack=1, double release=0.9995);
+ double compressor(double input, double ratio, double threshold=0.9, double attack=1, double release=0.9995);
+ double input;
+ double ratio;
+ double currentRatio;
+ double threshold;
+ double output;
+ double attack;
+ double release;
+ double amplitude;
+ long holdtime;
+ long holdcount;
+ int attackphase,holdphase,releasephase;
+};
+
+class maxiEnv {
+
+
+public:
+ double ar(double input, double attack=1, double release=0.9, long holdtime=1, int trigger=0);
+ double adsr(double input, double attack=1, double decay=0.99, double sustain=0.125, double release=0.9, long holdtime=1, int trigger=0);
+ double input;
+ double output;
+ double attack;
+ double decay;
+ double sustain;
+ double release;
+ double amplitude;
+ int trigger;
+ long holdtime;
+ long holdcount;
+ int attackphase,decayphase,sustainphase,holdphase,releasephase;
+};
+
+class convert {
+public:
+ double mtof(int midinote);
+};
+
#endif

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