load 16 Bit PCM Raw Data File As Double Array : Array « Date Type « Android

load 16 Bit PCM Raw Data File As Double Array


import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

class SoundDataUtils {
  public static double[] load16BitPCMRawDataFileAsDoubleArray(File file) {
    InputStream in = null;
    if (file.isFile()) {
      long size = file.length();
      try {
        in = new FileInputStream(file);
        return readStreamAsDoubleArray(in, size);
      } catch (Exception e) {
    return null;

  public static double[] readStreamAsDoubleArray(InputStream in, long size)
      throws IOException {
    int bufferSize = (int) (size / 2);
    double[] result = new double[bufferSize];
    DataInputStream is = new DataInputStream(in);
    for (int i = 0; i < bufferSize; i++) {
      result[i] = is.readShort() / 32768.0;
    return result;



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