Question

我正在尝试创建一段长长的音频，这是一组录制的音频剪辑，这些剪辑会及时合并为一个大型的声音拼贴。我正在使用Minim声音库，但目前我很难让它工作。这与我的编程技巧非常基本相同，但我认为这将是一项非常简单的任务！我：蚂蚁它的工作原理与Minim的examples文件夹中的'RecordAndPlayback'完全相同，但是由自动执行的点击触发事件。

这是我到目前为止的代码：

import ddf.minim.*;
Minim minim;
AudioInput in;
AudioRecorder recorder;
AudioPlayer player;
Timer timer;
class Timer {

  int savedTime; // When Timer started
  int totalTime; // How long Timer should last

  Timer(int tempTotalTime) {
    totalTime = tempTotalTime;
  }

  // Starting the timer
   void start() {
    // When the timer starts it stores the current time in milliseconds.
    savedTime = millis();
  }

  // The function isFinished() returns true if 5,000 ms have passed.
  // The work of the timer is farmed out to this method.
  boolean isFinished() {
    // Check how much time has passed
    int passedTime = millis()- savedTime;
    if (passedTime > totalTime) {
      return true;
    } else {
      return false;
    }
  }
}
void setup()
{
  size(512, 200, P3D);
  textMode(SCREEN); 
  minim = new Minim(this);
  timer = new Timer(5000);
  timer.start();
  in = minim.getLineIn(Minim.STEREO, 2048);
  recorder = minim.createRecorder(in, "myrecording.wav", true);

  textFont(createFont("Arial", 12));
}
void draw()
{
  background(0);
  player =  minim.loadFile("myrecording.wav");
  player.play();
  player.loop();
//GUI
  stroke(255);
  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);
  }
  //-- end of GUI
//recorder switching
  if (timer.isFinished())
  {
    text("not..", 5, 15);
    if(recorder.isRecording() == true){
     recorder.endRecord();
     recorder.save();
     timer.start();
    }
  }else
  {
    text("recording...", 5, 15);
    recorder.beginRecord();
   println(recorder.isRecording());
  }
  ///--- end recorder switching

}
void stop()
{
  // always close Minim audio classes when you are done with them
  in.close();
  if ( player != null )
  {
    player.close();
  }
  minim.stop();

  super.stop();
}

请给我任何帮助，因为这让我很生气！

由于

丹尼尔

Answer 1

您似乎只处理一个文件而您没有加载正在录制的内容。

如果要打开和关闭录制，可以使用布尔值跟踪，然后保存录制的内容。

这是使用修改过的样本的基本草图：

import ddf.minim.*;

Minim minim;
AudioInput in;
AudioRecorder recorder;
AudioPlayer player;

boolean isRecording;//are we recording ?

void setup(){
  size(512, 200);
  minim = new Minim(this);
  in = minim.getLineIn(Minim.STEREO, 512);
  recorder = minim.createRecorder(in, "rec.wav", true);
  textFont(createFont("Arial", 12));
}

void draw(){
  background(isRecording ? color(192,0,0) : color(0));
  stroke(255);
  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("Currently recording...", 5, 15);
  else                          text("Not recording.", 5, 15);

}

void keyReleased(){
  if ( key == 'r' ){
    isRecording = !isRecording;//toggle recording
    if(isRecording){//if we need to record
      if(player != null &&  player.isPlaying()) player.pause();//stop any previously playing tracks, if any
      if(recorder.isRecording()) recorder.endRecord();//and the previous recording somehow wasn't ended, end it now
      recorder.beginRecord();//begin recording, according to docs: "If recording was previously halted, and save() was not called, samples will be appended to the end of the material recorded so far."
    }else recorder.endRecord();//stop recording
  }
  if ( key == 's' ){
    if(recorder != null) {
      recorder.save();
      println("Done saving ");
      player = minim.loadFile("rec.wav", 2048);
      player.play();
    }
  }
} 

void stop(){
  in.close();
  minim.stop();
  super.stop();
}

如果由于某种原因你想将每个录音保存到一个单独的文件而不是一个，你可以使用一些整数来保存录音和播放样本的ID。

import ddf.minim.*;

Minim minim;
AudioInput in;
AudioRecorder recorder;
AudioPlayer player;

boolean isRecording;

int recID = -1;
int playID = 0;

void setup(){
  size(512, 200);
  minim = new Minim(this);
  in = minim.getLineIn(Minim.STEREO, 512);
  textFont(createFont("Arial", 12));
}

void draw(){
  background(0);
  stroke(255);
  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 != null){
    if ( recorder.isRecording() ) text("Currently recording...", 5, 15);
    else                          text("Not recording.", 5, 15);
  }
  if(player != null && !isRecording){
    println("playing: " + playID); 
    if(player.position() >= player.length()){
      if(playID < recID){
        playID++;
        player = minim.loadFile("rec"+playID+".wav", 2048);
        player.play();
      }
    }
  }
}

void keyReleased(){
  if ( key == 'r' ){
    if(recorder != null && recorder.isRecording()) recorder.endRecord();
    else{
    recID++;
    recorder = minim.createRecorder(in, "rec"+recID+".wav", true);
    recorder.beginRecord();
    }
    isRecording = true;
  }
  if ( key == 's' ){
    if(recorder != null) {
      recorder.save();
      println("Done saving " + recID);
      player = minim.loadFile("rec"+recID+".wav", 2048);
      player.play();
      isRecording = false;
    }
  }
  if ( key == 'p' ){//play all
    playID = 0;
    player = minim.loadFile("rec"+playID+".wav", 2048);
    player.play();
  }
}

void stop(){
  in.close();
  minim.stop();
  super.stop();
}

Goodluck！

Audio Loop Processing.org（Java / Minim声音库）

1 个答案: