processing playback
in
Core Library Questions
•
2 years ago
I am trying to write a code which plays back the sound.
Do you know how can I achieve that?
This is what I have done but the processing always stacks when I run it.
*
* Record Line In
* by Damien Di Fede.
*
* This sketch demonstrates how to an <code>AudioRecorder</code>
* to record audio to disk. To use this sketch you need to have
* something plugged into the line-in on your computer. Press 'r'
* to toggle recording on and off and the press 's' to save to disk.
* The recorded file will be placed in the sketch folder of
* the sketch.
*/
import ddf.minim.*;
Minim minim;
AudioInput in;
AudioRecorder recorder;
int colorchange=255;
int prio=0;
void setup()
{
size(512, 200, P2D);
textMode(SCREEN);
minim = new Minim(this);
// get a stereo line-in: sample buffer length of 2048
// default sample rate is 44100, default bit depth is 16
in = minim.getLineIn(Minim.STEREO, 2048);
// create a recorder that will record from the input to the filename specified, using buffered recording
// buffered recording means that all captured audio will be written into a sample buffer
// then when save() is called, the contents of the buffer will actually be written to a file
// the file will be located in the sketch's root folder.
recorder = minim.createRecorder(in, "myrecording.wav", true);
textFont(createFont("SanSerif", 12));
}
void draw()
{
background(0);
stroke(255);
// draw the waveforms
// the values returned by left.get() and right.get() will be between -1 and 1,
// so we need to scale them up to see the waveform
for(int i = 0; i < in.bufferSize() - 1; i++)
{
stroke(255,0,0); //red
line(0,60,512,60);
if ( (50 + in.left.get(i)*50)>60 )
{
stroke(0,0,255);
if (prio==0)
{
prio=1;
recorder.beginRecord();
}
}
else
{
stroke(255);
}
//stroke(colorchange);//pali lefko
line(i, 50 + in.left.get(i)*50, i+1, 50 + in.left.get(i+1)*50);
line(i, 150 + in.right.get(i)*50, i+1, 150 + in.right.get(i+1)*50);
println(in.right.get(i));
}
if ( recorder.isRecording() )
{
text("Currently recording...", 5, 15);
}
else
{
text("Not recording.", 5, 15);
}
}
void keyReleased()
{
if ( key == 'r' )
{
// to indicate that you want to start or stop capturing audio data, you must call
// beginRecord() and endRecord() on the AudioRecorder object. You can start and stop
// as many times as you like, the audio data will be appended to the end of the buffer
// (in the case of buffered recording) or to the end of the file (in the case of streamed recording).
if ( recorder.isRecording() )
{
recorder.endRecord();
}
else
{
recorder.beginRecord();
}
}
if ( key == 's' )
{
// we've filled the file out buffer,
// now write it to the file we specified in createRecorder
// in the case of buffered recording, if the buffer is large,
// this will appear to freeze the sketch for sometime
// in the case of streamed recording,
// it will not freeze as the data is already in the file and all that is being done
// is closing the file.
// the method returns the recorded audio as an AudioRecording,
// see the example AudioRecorder >> RecordAndPlayback for more about that
recorder.save();
println("Done saving.");
}
}
void stop()
{
// always close Minim audio classes when you are done with them
in.close();
minim.stop();
super.stop();
}
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