UNV-FAQ-IPC How do I set up Audio Encoding?
Answer:
Note: Only some certain models support this function. Please see the actual model for details.
1. Click Setup > Video & Audio > Audio.
2. Modify the settings as required. The following table describes some major parameters.
| Parameter | Description |
|---|---|
| Audio Input | No audio data will be encoded when Off is selected. Note: It is recommended to select Off if you do not need audio. This can improve device performance to some extent. |
| Access Mode | Currently only Line/Mic. Note: This function is not available to devices with two audio output channels. |
| Audio Compression | Three options: G.711U, G.711A and ACC-LC. G.711U and G.711A support 8K sampling rate only, and ACC-LC supports 8K, 16K and 48K sampling rates. |
| Input Gain | Audio signal amplification for sampling. The greater the gain, the greater amplification. |
| Noise Suppression | Used to reduce noise in images. To enable noise suppression, select On. |
| Channel | Audio output channel. To enable audio output, select Enable. Note: Only some camera models support two channels. |
3. Click Save.
TAGS:
Audio input, audio compression, G.711U, G.711A, ACC-LC, audio signal amplification
