java - Play raw PCM audio received in UDP packets -

the remote device sending live raw pcm audio(no header included) in udp packets , need implement program in java receive these packets , play them on pc live. know raw pcm's attributes 16bit, mono, sampling rate 24khz, tried add wav header raw pcm audio , play problem don't have file size of audio.

i implemented program based on this link gives noise in output.

i bound use udp , can raw pcm remote device, library or api can play raw audio on pc?

here simple example obtaining output line , playing pcm on it. when run plays second long annoying beep.

import javax.sound.sampled.audioformat; import javax.sound.sampled.audiosystem; import javax.sound.sampled.dataline; import javax.sound.sampled.sourcedataline;  public class rawaudioplay {      public static void main(string[] args) {         try {             // select audio format parameters             audioformat af = new audioformat(24000, 16, 1, true, false);             dataline.info info = new dataline.info(sourcedataline.class, af);             sourcedataline line = (sourcedataline) audiosystem.getline(info);              // generate pcm data (a sine wave simplicity)             byte[] buffer = new byte[64];             double step = math.pi / buffer.length;             double angle = math.pi * 2;             int = buffer.length;             while (i > 0) {                 double sine = math.sin(angle);                 int sample = (int) math.round(sine * 32767);                 buffer[--i] = (byte) (sample >> 8);                 buffer[--i] = (byte) sample;                 angle -= step;             }              // prepare audio output             line.open(af, 4096);             line.start();             // output wave form repeatedly             (int n=0; n<500; ++n) {                 line.write(buffer, 0, buffer.length);             }             // shut down audio             line.drain();             line.stop();             line.close();         } catch (exception e) {             throw new runtimeexception(e.getmessage(), e);         }     }  } 

you see, ten lines handling line, half of code section "generate pcm" can ignore if pcm somehwere else. need pay attention creation of correct audioformat, screw booleans signed and/or endian , pcm sound garbled, possibly not recognizable.