public void TouchPadDidMoveSpeaker(Speaker speaker) { uint uid = UidOfSpeaker(speaker); if (uid == 0) { return; } Vector2 postion = speaker.transform.position; Vector2 panAndGain = PanAndGain(postion); Double pan = panAndGain.x; Double gain = panAndGain.y; IAudioEffectManager effectManager = mRtcEngine.GetAudioEffectManager(); effectManager.SetRemoteVoicePosition(uid, pan, gain); }