The audio system is able to use any installed DirectSound capable audio device. On every device, up to 16 channels can be used.

• Sample Rate: Reserved for later use. Shows the sample rate. Default sample rate is 48kHz (48000) which is the maximum allowed.

• Device n: Shows the name of the audio card.

• Bits per Sample: Reserved for later use. Shows the number of bits used per sample. Default value is 16 Bit per sample rate.

• Mode: Refers to the audio mode of the Matrox board. Options are:

  • Embedded: Audio is captured from the Live video input connectors and made available to the Viz Engine audio mixer, to mix it with other audio sources. Then output as embedded audio on the live video output connectors

  • AES: Audio is captured from the AES input connectors and made available to the Viz Engine audio mixer, to mix it with other audio sources. Then output on the AES output connectors

  • Embedded -> AES: Embedded audio is captured from the live video input connectors and made available to the Viz Engine audio mixer, to mix it with other audio sources. Then output on the AES output connectors

  • AES -> Embedded: Audio is captured from the AES input connectors and made available to the Viz Engine audio mixer, to mix it with other audio sources.Then output as embedded audio on the live video output connectors

  • Loop: Audio is looped through. No audio is mixed

  • Default: Audio is captured, but no output on the Matrox card
    During the startup process Viz Engine tests all available audio cards installed on the system. Manual activation of audio devices is done in SECTION AUDIO_CONFIG of the Viz Config file. By default a one to one channel assignment from the first audio device is done when a new device is selected.