Disable ducking by default. Changed ducking threshold parameter range.

        // Ducking is enabled by default

        mDuckingThreshold = 0;

        mDuckedTrackVolume = 0;

        mIsDuckingEnabled = true;

        mIsDuckingEnabled = false;

        // The audio waveform file is generated later

        mAudioWaveformFilename = null;

    /**

     * Enable ducking by specifying the required parameters

     *

     * @param threshold Ducking will be activated when the relative energy in

     * @param threshold Ducking will be activated when the energy in

     *      the media items audio signal goes above this value. The valid

     *      range of values is 0 to 100.

     *      range of values is 0db to 90dB. 0dB is equivalent to disabling

     *      ducking.

     * @param duckedTrackVolume The relative volume of the audio track when ducking

     *      is active. The valid range of values is 0 to 100.

     */

    public void enableDucking(int threshold, int duckedTrackVolume) {

        if (threshold < 0 || threshold > 100) {

        if (threshold < 0 || threshold > 90) {

            throw new IllegalArgumentException("Invalid threshold value: " + threshold);

        }