basic drum machine example

4 files changed, 97 insertions, 20 deletions

diff --git a/main.cpp b/main.cpp
index 797f185..2b619e6 100755
--- a/main.cpp
+++ b/main.cpp
@@ -1,30 +1,53 @@
 #include "maximilian.h"
 
-maxiSample beats; //We give our sample a name. It's called beats this time. We could have loads of them, but they have to have different names.
-maxiDyn compressor; //this is a compressor
-double out;
+maxiSample kick,snare; //We give our sample a name. It's called beats this time. We could have loads of them, but they have to have different names.
+
+maxiOsc timer;
+
+int currentCount,lastCount,playHead,hit[16]={1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0};
+int snarehit[16]={0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0};
+
+int kicktrigger,snaretrigger;
+
+double sampleOut;
 
 void setup() {//some inits
 	
-	beats.load("/Users/mickgrierson/Documents/audio/audio2/orbital1.wav");//load in your samples. Provide the full path to a wav file.
-	printf("Summary:\n%s", beats.getSummary());//get info on samples if you like.
+	kick.load("/Users/mickgrierson/Documents/audio/blip.wav");//load in your samples. Provide the full path to a wav file.
+	snare.load("/Users/mickgrierson/Documents/audio/snare.wav");//load in your samples. Provide the full path to a wav file.
+
 	
+	printf("Summary:\n%s", kick.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(4);//this sets up a metronome that ticks 8 times a second
 	
-	//here, we're just compressing the file in real-time
-	//arguments are input,ratio,threshold,attack,release. a long attack is something like 0.0001 and a long release is like 0.9999.
 	
-	out=compressor.compressor(beats.play(),10,0.1,0.2,0.9995);
-
-	output[0]=out;	
-	output[1]=out;	
+	if (lastCount!=currentCount) {//if we have a new timer int this sample, play the sound
+		
+		kicktrigger=hit[playHead%16];
+		snaretrigger=snarehit[playHead%16];
+		playHead++;
+		lastCount=0;
+	}
 	
-	//	*output=beats.play(0.69);//play the file with a speed setting. 1. is normal speed.
-	//	*output=beats.play(0.5,0,44100);//linear interpolationplay with a frequency input, start point and end point. Useful for syncing.
-	//	*output=beats.play4(0.5,0,44100);//cubic interpolation play with a frequency input, start point and end point. Useful for syncing.
-
-}
+	if (kicktrigger==1) {
+	
+		kick.trigger();
+	
+	}
+	
+	if (snaretrigger==1) {
+		
+		snare.trigger();
+		
+	}
+	
+		sampleOut=kick.playOnce()+snare.playOnce();//just play the file. Looping is default for all play functions.
 
+		*output=sampleOut;
+	
+}
\ No newline at end of file
diff --git a/maximilian.cpp b/maximilian.cpp
index c7396e1..d55793d 100644
--- a/maximilian.cpp
+++ b/maximilian.cpp
@@ -257,7 +257,7 @@ 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;
@@ -273,7 +273,7 @@ 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;
@@ -434,7 +434,8 @@ double maxiSample::play() {
 	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);
 }
 
@@ -832,7 +833,6 @@ 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 */
diff --git a/maximilian.h b/maximilian.h
index 88b4843..2170782 100755
--- a/maximilian.h
+++ b/maximilian.h
@@ -183,6 +183,7 @@ public:
 	long length;
 	void getLength();
 
+
 	char* 	myData;
 	
 	// get/set for the Path property
diff --git a/maximilian_examples/18.DrumMachine.cpp b/maximilian_examples/18.DrumMachine.cpp
new file mode 100644
index 0000000..a655ffb
--- /dev/null
+++ b/maximilian_examples/18.DrumMachine.cpp
@@ -0,0 +1,53 @@
+#include "maximilian.h"
+
+maxiSample kick,snare; //We give our sample a name. It's called beats this time. We could have loads of them, but they have to have different names.
+
+maxiOsc timer;
+
+int currentCount,lastCount,playHead,hit[16]={1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0};
+int snarehit[16]={0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0};
+
+int kicktrigger,snaretrigger;
+
+double sampleOut;
+
+void setup() {//some inits
+	
+	kick.load("/Users/mickgrierson/Documents/audio/blip.wav");//load in your samples. Provide the full path to a wav file.
+	snare.load("/Users/mickgrierson/Documents/audio/snare.wav");//load in your samples. Provide the full path to a wav file.
+	
+	
+	printf("Summary:\n%s", kick.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(4);//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];
+		snaretrigger=snarehit[playHead%16];
+		playHead++;
+		lastCount=0;
+	}
+	
+	if (kicktrigger==1) {
+		
+		kick.trigger();
+		
+	}
+	
+	if (snaretrigger==1) {
+		
+		snare.trigger();
+		
+	}
+	
+	sampleOut=kick.playOnce()+snare.playOnce();//just play the file. Looping is default for all play functions.
+	
+	*output=sampleOut;
+	
+}
\ No newline at end of file