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Index › Programming Questions & Help › Sound,  Music Libraries › Rec/save/play multiple samples
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Rec/save/play multiple samples (Read 1137 times)
koser
Rec/save/play multiple samples
May 14th, 2007, 12:26pm  
Hi

I'm trying to build kind of an answering machine using buttons to rec., stop and play samples.
I can get it to do it with one sample but i would like to save more than one sample to play. (So I can listen to more than one recording)

This is the code i've written: (i use processing 090)

import pitaru.sonia_v2_9.*;

Sample mySampleObj;

void setup(){
 size(400,200);
 background(0,50,0);
 Sonia.start(this);
 LiveInput.start();
 int recTimeSec = 10;
 mySampleObj = new Sample(44100*recTimeSec);
}

void draw(){
 
}

void keyPressed(){
 if(key == 'r'){
   LiveInput.startRec(mySampleObj);
   print("REC");
 }
 
    if(key == 's'){
       LiveInput.stopRec(mySampleObj);
       print("STOP");  
 }

   if(key == 'p'){
   mySampleObj.play();
   print("PLAY");
 }
}

public void stop(){
 Sonia.stop();
 super.stop();
}


I have an idea on how to solve it but i'm not sure how to do it.
I was thinking to make a variable that counts up as I record new samples and then starts over and counts up again when reached a certain number of samples.

kind of a list with sample1, sample2, sample3...

Can anyone help me?

thanx for your time..

//Mads Köser
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ddf
Re: Rec/save/play multiple samples
Reply #1 - May 14th, 2007, 3:36pm  
Yup, that's the ticket. You'll need more than one Sample object and you'll need to keep track of which you will record to next. Shouldn't be too tricky.
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koser
Re: Rec/save/play multiple samples
Reply #2 - May 15th, 2007, 12:11am  
Should it then be:
Sample mySampleObj;
Sample mySampleObj1;
Sample mySampleObj2;

void setup(){  
 size(400,200);
 background(0,50,0);
 Sonia.start(this);  
 LiveInput.start();  
 int recTimeSec = 10;  
 mySampleObj = new Sample(44100*recTimeSec);
 mySampleObj1 = new Sample(44100*recTimeSec);
 mySampleObj2 = new Sample(44100*recTimeSec);  
}  

or how should i call them. I'm new to this so i'm not so sure in how to do these things..

//Mads Köser
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ddf
Re: Rec/save/play multiple samples
Reply #3 - May 15th, 2007, 12:40am  
You can call them whatever you like, it's your code. But you might consider using an array of Samples instead of a bunch of different variables. So, like:

Code:

Sample[] mySamples = new Sample[3];
 
void setup(){  
  size(400,200);  
  background(0,50,0);  
  Sonia.start(this);  
  LiveInput.start();  
  int recTimeSec = 10;
  for ( int i = 0; i < mySamples.length; i++)
  {
    mySamples[i] = new Sample(44100*recTimeSec);
  }
}


Now you could change the number of samples you have just by changing the number in the array allocation.
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koser
Re: Rec/save/play multiple samples
Reply #4 - May 15th, 2007, 11:12am  
I'll try it out and write again - i think i can get it working. Thanx for the help so far..
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koser
Re: Rec/save/play multiple samples
Reply #5 - May 15th, 2007, 1:34pm  
This is my code now but it gives me the error:

"Perhaps you wanted the overoaded version "void startRec(pitaru.sonia_v2_9.Sampe $1);" instead?"

What did I do wrong?

CODE:
import pitaru.sonia_v2_9.*;

Sample[] mySamples = new Sample[3];
 
void setup(){  
 size(400,200);  
 background(0,50,0);  
 Sonia.start(this);  
 LiveInput.start();  
 int recTimeSec = 10;
 for ( int i = 0; i < mySamples.length; i++)
 {
   mySamples[i] = new Sample(44100*recTimeSec);
 }
}    

void draw(){
 
}

void keyPressed(){
 if(key == 'r'){
   LiveInput.startRec(mySamples);
   print("REC");
 }
 
    if(key == 's'){
       LiveInput.stopRec(mySamples);
       print("STOP");  
 }

   if(key == 'p'){
   mySample.play();
   print("PLAY");
 }
}

public void stop(){
 Sonia.stop();
 super.stop();
}

Thanx for your quick responses
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fjen
Re: Rec/save/play multiple samples
Reply #6 - May 15th, 2007, 2:01pm  
you've defined mySamples as an array, so you need to give an index, something like:

LiveInput.startRec(mySamples[0]);

F
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fjen
Re: Rec/save/play multiple samples
Reply #7 - May 15th, 2007, 2:06pm  
looking at your code you need some way to set / keep track of which item in the array you want to use or is active.

int myCurrentSample = 0;

LiveInput.startRec(mySamples[myCurrentSample]);

now, since you probably don't want to record over the last sample, updated it inside keypressed:

if(key == 'r'){
   myCurrentSample ++;
   if ( myCurrentSample >= mySamples.length ) {
       println("no more sample slots available");
       return;
  }
   LiveInput.startRec(mySamples);
   print("REC");
 }
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koser
Re: Rec/save/play multiple samples
Reply #8 - May 16th, 2007, 10:59am  
So it kind of works now.. It counts the samples and start over - but it seems like i can't play the samples - or theres no sound when i do so. What could be the problem?

CODE:
import pitaru.sonia_v2_9.*;

Sample[] mySamples = new Sample[5];
int myCurrentSample = 0;



void setup(){  
 size(400,200);  
 background(0,50,0);  
 Sonia.start(this);  
 LiveInput.start();  
 int recTimeSec = 10;
 for ( int i = 0; i < mySamples.length; i++)
 {
   mySamples[i] = new Sample(44100*recTimeSec);
 }
}    

void draw(){

}

void keyPressed(){

 if(key == 'r'){  
   myCurrentSample ++;
   if ( myCurrentSample >= mySamples.length ) {
     println("no more sample slots available");
     myCurrentSample = 0;
     //return;
   }
   LiveInput.startRec(mySamples[myCurrentSample]);  
   print("REC");  
 }
 if(key == 's'){  
   LiveInput.stopRec(mySamples[myCurrentSample]);  
   print("STOP");  
 }
 if(key == 'p'){  
   mySamples[myCurrentSample].play();  
   print("PLAY");  
 }
 print(myCurrentSample);
}

public void stop(){
 Sonia.stop();
 super.stop();
}



Thanx ones again
//Mads Köser
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« Last Edit: May 17th, 2007, 11:01am by koser »  
 
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