audio - Detecting sound from microphone using Java. Issue with Java Versions -

i'm running simple code listens microphone , prints out bytes.

problem: listens microphone changes correctly on java version "1.6.0_43"

but doesn't listen microphone changes correctly on java version "1.7.0_25"

code compiles , runs fine on both versions.

example output using java 1.6

• 5172 1
• 5196 2
• 5103 3
• 2859 4
• 2549 5
• 2742 6
• 3112 7
• 5028 8
• 4515 9
• 3856 10
• 5189 11
• 5080 12
• 5165 13
• 4925 14

when drops down around 2500 that's when there sound going microphone.

example output using java 1.7

• 5652 1
• 5655 2
• 5699 3
• 6081 4
• 6213 5
• 5972 6
• 5907 7
• 5828 8
• 5931 9
• 6187 10
• 6015 11
• 5949 12
• 6196 13

it no longer detects noise microphone.

import java.io.*; import javax.sound.sampled.*;  public class speechdetectiontest {      public static void main(string[] args) {          bytearrayoutputstream bytearrayoutputstream;         targetdataline targetdataline;         int cnt;         boolean stopcapture = false;         byte tempbuffer[] = new byte[8000];         int countzero, countdowntimer;           short convert[] = new short[tempbuffer.length];         try {             bytearrayoutputstream = new bytearrayoutputstream();             stopcapture = false;             countdowntimer = 0;             while (!stopcapture) {                 audioformat audioformat = new audioformat(8000.0f, 16, 1, true, false);                 dataline.info datalineinfo = new dataline.info(targetdataline.class, audioformat);                 targetdataline = (targetdataline) audiosystem.getline(datalineinfo);                 targetdataline.open(audioformat);                 targetdataline.start();                 cnt = targetdataline.read(tempbuffer, 0, tempbuffer.length);                 bytearrayoutputstream.write(tempbuffer, 0, cnt);                 try {                     countzero = 0;                     (int = 0; < tempbuffer.length; i++) {                                                            convert[i] = tempbuffer[i];                         if (convert[i] == 0) {                             countzero++;                         }                     }                      countdowntimer++;                     system.out.println(countzero + " " + countdowntimer);                  } catch (stringindexoutofboundsexception e) {                     system.out.println(e.getmessage());                 }                 thread.sleep(0);                 targetdataline.close();             }         } catch (exception e) {             system.out.println(e);         }     } } 

any ideas?

also posted on these forums, no luck =(

http://www.coderanch.com/t/615528//java/detecting-sound-microphone-java-java#2811088

http://www.dreamincode.net/forums/topic/324610-detecting-sound-from-microphone-using-java-issue-with-java-versions/