audio - 如何在麦克风中播放声音？

Question

我想用处理语言制作一个音板来播放声音，以便计算机处理声音，就好像它们是我的麦克风输入的声音一样。这是我做音板的唯一问题。如何使声音像麦克风录制的声音一样播放？

我已经花了一个小时的时间搜索并尝试获得帮助，但是却没有任何工作可做。

Answer 1

Minim provides the class AudioInput for monitoring the user’s current record source (this is often set in the sound card control panel), such as the microphone or the line-in

从

http://code.compartmental.net/tools/minim/quickstart/

编辑:

你见过这个吗？

import ddf.minim.*;
import ddf.minim.ugens.*;

Minim minim;

// for recording
AudioInput in;
AudioRecorder recorder;

// for playing back
AudioOutput out;
FilePlayer player;

void setup()
{
  size(512, 200, P3D);

  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 an AudioRecorder that will record from in to the filename specified.
  // the file will be located in the sketch's main folder.
  recorder = minim.createRecorder(in, "myrecording.wav");

  // get an output we can playback the recording on
  out = minim.getLineOut( Minim.STEREO );

  textFont(createFont("Arial", 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.left.size()-1; i++)
  {
    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);
  }

  if ( recorder.isRecording() )
  {
    text("Now 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 callstartRecording() and stopRecording() 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 to the end of the file. 
    if ( recorder.isRecording() ) 
    {
      recorder.endRecord();
    }
    else 
    {
      recorder.beginRecord();
    }
  }
  if ( key == 's' )
  {
    // we've filled the file out buffer, 
    // now write it to a file of the type we specified in setup
    // in the case of buffered recording, 
    // this will appear to freeze the sketch for sometime, if the buffer is large
    // 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.
    // save returns the recorded audio in an AudioRecordingStream, 
    // which we can then play with a FilePlayer
    if ( player != null )
    {
        player.unpatch( out );
        player.close();
    }
    player = new FilePlayer( recorder.save() );
    player.patch( out );
    player.play();
  }
}

从这里:

http://code.compartmental.net/minim/audiorecorder_class_audiorecorder.html