2.4. Audio
• Encoder: None / AAC / PCM
• Input: Off / Microphone
n Off：Turn off all audio input.
n Microphone：The camera will use built-in microphone as audio input if there is
no external microphone plugged into the 3.5mm audio-in port, and will use the
external microphone if there is one plugged into the 3.5mm audio-in port.
• Input Gain: -18 ~ 6 dB, can be set manually.
• Output Gain: -6 ~ 6 dB, can be set manually.
• Audio Level Display: Disable / Enable
2.5. Exposure
• Flicker Reduction：60Hz / 50Hz. It’s set to eliminate light flicking caused by the
frequency of the electricity, which is 60Hz in North America and some parts of Asia.
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