am a8ce7736: am 35e8dcb9: Merge "Suppress the recording sound in the recorded...

        // After the initial mute, we raise the volume linearly

        // over kAutoRampDurationUs.

        kAutoRampDurationUs = 300000,

        kAutoRampDurationUs = 700000,

        // This is the initial mute duration to suppress

        // the video recording signal tone

        kAutoRampStartUs = 700000,

        kAutoRampStartUs = 1000000,

      };

    AudioRecord *mRecord;