public void onStart(int id, int errCode)
        {
            if (this.IsHandleCreated)
            {
                this.BeginInvoke(new Action(() =>
                {
                    AudioEffectManager.setMusicPlayoutVolume(mBGMParam.id, this.LocalVolumTrackBar.Value);
                    AudioEffectManager.setMusicPublishVolume(mBGMParam.id, this.RemoteVolumTrackBar.Value);

                    float fSpeed = (float)this.BGMSpeedTrackBar.Value / AUDIO_BGM_SPEED_CONVERSION_RATE;
                    AudioEffectManager.setMusicSpeedRate(mBGMParam.id, fSpeed);

                    float fPitch = ((float)this.BGMPitchTrackBar.Value / AUDIO_BGM_PITCH_CONVERSION_RATE);
                    AudioEffectManager.setMusicPitch(mBGMParam.id, fPitch);
                }));
            }
        }
        private void Init()
        {
            this.BGMprogressBar.Maximum = 100;
            this.BGMprogressBar.Value   = 0;

            this.BGMVolumTrackBar.Maximum    = 100;
            this.BGMVolumTrackBar.Minimum    = 0;
            this.BGMVolumTrackBar.Value      = 50;
            this.RemoteVolumTrackBar.Maximum = 100;
            this.RemoteVolumTrackBar.Minimum = 0;
            this.RemoteVolumTrackBar.Value   = 50;

            this.LocalVolumTrackBar.Maximum = 100;
            this.LocalVolumTrackBar.Minimum = 0;
            this.LocalVolumTrackBar.Value   = 50;

            this.BGMSpeedTrackBar.Maximum = 20;
            this.BGMSpeedTrackBar.Minimum = 5;
            this.BGMSpeedTrackBar.Value   = 10;

            this.BGMPitchTrackBar.Maximum = 10;
            this.BGMPitchTrackBar.Minimum = -10;
            this.BGMPitchTrackBar.Value   = 0;


            mEffectParam1.isShortFile = true;


            mEffectParam2.isShortFile = true;

            mEffectParam3.isShortFile = true;

            mBGMParam.id      = 4;
            mBGMParam.publish = true;



            AudioEffectManager = mTRTCCloud.getAudioEffectManager();

            AudioEffectManager.setMusicPlayoutVolume(mBGMParam.id, this.BGMVolumTrackBar.Value);
            AudioEffectManager.setMusicPublishVolume(mBGMParam.id, this.BGMVolumTrackBar.Value);
        }