I have a .wav
file. I want to get the PCM data from that sound file, so that I can get the individual data chunks from the sound and process it.
But I don't know how to do it. Can anyone tell me how to do it? I have done this so far:
public class test
{
static int frameSample;
static int timeofFrame;
static int N;
static int runTimes;
static int bps;
static int channels;
static double times;
static int bufSize;
static int frameSize;
static int frameRate;
static long length;
public static void main(String[] args)
{
try
{
AudioInputStream ais = AudioSystem.getAudioInputStream(new File("music/audio.wav"));
AudioInputStream a;
int numBytes = ais.available();
System.out.println("numbytes: "+numBytes);
byte[] buffer = new byte[numBytes];
byte[] buffer1=new byte[numBytes] ;
int k=0;
int count=0;
while(count!=-1){
count=ais.read(buffer, 0, numBytes);
}
long value = 0;
for (int i = 0; i < buffer.length; i++)
{
value = ((long) buffer[i] & 0xffL) << (8 * i);
System.out.println("value: "+value);
}
} catch(Exception e) {
}
}
}
This can be done with the Java Sound API.
AudioSystem
to get an AudioInputStream
from the file.AudioFormat
.byte[]
to suit the format. E.G. 8 bit mono is a byte[1]
. 16 bit stereo is byte[4]
.byte[]
and it will contain the sound, frame by frame.