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Audio Files Format

The Audio File Format page allows you to change audio format (stereo/mono), MP3 bitrate and other settings.

To change audio settings:

  1. Navigate to Administration > Storage> Audio Files Format and click the Edit Configuration button.

    Audio Files Format

  2. Set up the following options:

    Audio Files Format

    • File format - Select the file format. Supported file formats: WAV, MP3.
    • Audio format - Select the audio format. Supported audio formats: Mono, Stereo.
    • AGC filter - Enable the AGC filter. The AGC filter automatically normalizes volume levels between two audio channels.
    • AGC maximum gain level - Limit the maximum amplifictaion level. It is necessary to prevent situations, when a slight noise is amplified to high volume levels. Default value: 3.0
    • PLC filter - Enable the PLC filter. The PLC filter improves audio quality when there is a slight packet loss (less than 5%)
    • MP3 bitrate - Choose the MP3 bitrate. The file bitrate defines the kilobits per second (kbps) per each audio channel and per each 8,000Hz of sample rate. For example, if the audio file is stereo (2 channels) and the sample rate is 16,000 Hz (twice bigger than normal 8,000 Hz), then the final file bitrate will be x4 bigger than the configured value. Default value: 16.
    • MP3 quality - Select the target MP3 quality and speed of MP3 compression algorithm. Default value: 5.

  3. Click Save to apply your changes.