
Exposure mode setting
Basic Setting > Audio (Sound)
Basic Setting > Audio > Audio (sound setting)
Basic Setting > Audio > Audio > Mode
Audio mode: Full duplex, half duplex, simplex microphone only, simplex
amplifier only, and audio off.
Full duplex: Allows using a microphone and amplifier at the same time, or
turning them off.
Half duplex: Allows using a microphone or amplifier by manual switch.
Simplex microphone only: Allows using the microphone only.
Simplex amplifier only: Allows using the speaker only.
Audio off: Turns audio off; i.e. both the microphone and speaker are off.
Sound transmission format
Audio input: 4 formats
Audio output: 4 formats
G726/24: Uses G.726 24Kbps for audio encryption/decryption.
Gain: Adjust the volume of the audio.
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