Increase the volume of an audio buffer

gistfile1.txt

public byte[] increaseVolume(byte[] audioBuffer) {
    for (int i = 0; i < audioBuffer.length; i += 2) {
        // Convert 16-bit little-endian PCM samples to a short
        short sample = (short)((audioBuffer[i] & 0xFF) | (audioBuffer[i + 1] << 8));

        // Increase the volume by 10%
        sample = (short)(sample * 1.1);

        // Clip the value to stay within the 16-bit range
        if (sample > Short.MAX_VALUE) {
            sample = Short.MAX_VALUE;
        } else if (sample < Short.MIN_VALUE) {
            sample = Short.MIN_VALUE;
        }

        // Convert the short back to little-endian bytes
        audioBuffer[i] = (byte)(sample & 0xFF);
        audioBuffer[i + 1] = (byte)((sample >> 8) & 0xFF);
    }

    return audioBuffer;
}