1    package sound.audioDigitizer; 
2     
3    import sound.Utils; 
4     
5    import javax.sound.sampled.*; 
6    import java.io.ByteArrayInputStream; 
7    import java.io.ByteArrayOutputStream; 
8    import java.io.InputStream; 
9     
10   /** 
11    * Created by IntelliJ IDEA. 
12    * User: Douglas Lyon 
13    * Date: Dec 14, 2004 
14    * Time: 7:06:58 AM 
15    * Copyright DocJava, Inc. 
16    */ 
17   public class PlayThread extends Thread { 
18       byte tempBuffer[] = new byte[10000]; 
19       AudioInputStream audioInputStream; 
20       SourceDataLine sourceDataLine; 
21    
22       public PlayThread(AudioInputStream audioInputStream, 
23                         SourceDataLine sourceDataLine) { 
24           this.audioInputStream = audioInputStream; 
25           this.sourceDataLine = sourceDataLine; 
26    
27       } 
28    
29       public void run() { 
30           try { 
31               int cnt; 
32   //Keep looping until the input 
33   // read method returns -1 for 
34   // empty stream. 
35               while ((cnt = audioInputStream.read(tempBuffer, 
36                       0, tempBuffer.length)) != -1) { 
37                   if (cnt > 0) { 
38   //Write data to the internal buffer of the data line 
39   // where it will be delivered to the speaker. 
40    
41                       sourceDataLine.write(tempBuffer, 0, cnt); 
42                   }//end if 
43               }//end while 
44   //Block and wait for internal 
45   // buffer of the data line to 
46   // empty. 
47               sourceDataLine.drain(); 
48               sourceDataLine.close(); 
49           } catch (Exception e) { 
50               System.out.println(e); 
51               System.exit(0); 
52           }//end catch 
53       }//end run 
54    
55       public static void playAudio(ByteArrayOutputStream byteArrayOutputStream1) { 
56           try { 
57   //Get everything set up for playback. 
58   //Get the previously-saved data into a byte array object. 
59               byte audioData[] = byteArrayOutputStream1.toByteArray(); 
60   //Get an input stream on the byte array containing the data 
61               playAudioData(audioData); 
62    
63           } catch (Exception e) { 
64               System.out.println(e); 
65               System.exit(0); 
66           }//end catch 
67       }//end playAudio 
68    
69       public static void playAudioData(byte[] audioData) throws LineUnavailableException { 
70           InputStream byteArrayInputStream = new ByteArrayInputStream(audioData); 
71           AudioFormat audioFormat = Utils.get8khzMono8Format(); 
72           AudioInputStream audioInputStream = new AudioInputStream( 
73                   byteArrayInputStream, audioFormat, 
74                   audioData.length / audioFormat.getFrameSize()); 
75           DataLine.Info dataLineInfo = new DataLine.Info( 
76                   SourceDataLine.class, audioFormat); 
77           SourceDataLine sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo); 
78           sourceDataLine.open(audioFormat); 
79           sourceDataLine.start(); 
80   //Create a thread to play back the data and start it running. 
81   // It will run until all the data has been played back. 
82           Thread playThread = new Thread(new 
83                   PlayThread(audioInputStream, sourceDataLine)); 
84    
85           playThread.run(); 
86       } 
87   }//end inner class sound.audioDigitizer.PlayThread 
88