Audio

This audio function allows you to hear the sound from the camera or transmit your sound to the camera side. A two-way communication is also possible to be achieved with this feature. Alarm can be triggered when the audio input is above a certain alarm level you set, and configured audio can be played when an alarm occurs.



Table 1. Description of the buttons
Parameters Function Introduction
Enable

Check on the checkbox to enable audio feature.

Audio Mode Audio Input/Audio Output/Both Audio Input & Output are optional.
Audio Input

Denoise: Set it as On/Off. When you set the function on, the noise detected can be filtered.

Encoding: G.711-ULaw, G.711-ALaw, AAC LC, G.722 and G.726 are available

Audio Bit Rate: The function is available only for AAC LC, and supports up to 48kbps.

Sample Rate: 8KHz, 16KHz, 32KHz, 44.1KHz, and 48KHz are available.

Input Gain: Input audio gain level, 0-100.

Alarm Level: Alarm will be triggered if voice alarm is enabled and input gained volume is higher than the alarm level, 1-100.

Audio Output

Auto Gain Control: This function is only for H.265 series, improve the quality of audio

Output Volume: Adjust volume of output