virtual double GetVolume() OVERRIDE { return 1.0; }
virtual void SetAutomaticGainControl(bool enabled) OVERRIDE {}
virtual bool GetAutomaticGainControl() OVERRIDE { return true; }
virtual double GetVolume() OVERRIDE { return 1.0; }
virtual void SetAutomaticGainControl(bool enabled) OVERRIDE {}
virtual bool GetAutomaticGainControl() OVERRIDE { return true; }