Correct way to Convert 16bit PCM Wave data to float
- by fredley
I have a wave file in 16bit PCM form. I've got the raw data in a byte[] and a method for extracting samples, and I need them in float format, i.e. a float[] to do a Fourier Transform. Here's my code, does this look right? I'm working on Android so javax.sound.sampled etc. is not available.
private static short getSample(byte[] buffer, int position) {
return (short) (((buffer[position + 1] & 0xff) << 8) | (buffer[position] & 0xff));
}
...
float[] samples = new float[samplesLength];
for (int i = 0;i<input.length/2;i+=2){
samples[i/2] = (float)getSample(input,i) / (float)Short.MAX_VALUE;
}
