26  Connecting Audio Devices

The system supports Lorex HD audio cameras, which transmit audio through the same network cable used for video connection and powering the camera.
  • To utilize the listen-in feature, your camera must have a built-in speaker.
  • To utilize the two-way talk feature, your camera must have a built-in speaker and microphone.
The second RCA-type connector on the back panel is the AUDIO OUT port, which can be used to connect a self-powered speaker that will play audio from the system (requires audio-capable camera or self-power microphone).
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    To enable audio recording:
  1. From the Live View display, right-click to open the Quick Menu, then click Main Menu.
  2. Click Devices, then Record Settings. Click the Record Settings tab from the side panel.
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  3. Select the channel where the audio camera is connected.
  4. Select the type of recording to enable audio for. If you wish to record audio at all times, ensure you configure both Continuous and MD (Motion Detection) recording.
  5. Click on More Setting to configure the following:
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    • Audio Encode: Check box to enable/disable.
    • Audio Format: Select an audio codec (G711a or AAC recommended).
    • Audio Source: Remains as NORMAL setting.
    • Audio Sampling: Select an audio sampling rate (8000 recommended).
    • Click OK to save.
  6. Click Apply to save all changes.
    To enable audio for Amazon Alexa:
  1. From the Live View display, right-click to open the Quick Menu, then click Main Menu.
  2. Click Devices, then Record Settings. Click the Record Settings tab from the side panel.
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  3. Select the channel where the audio camera is connected.
  4. Under Sub Stream, click on the button More Setting to configure the following:
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    • Audio Encode: Click to enable.
    • Audio Format: Select AAC.
    • Click OK to save.
  5. Click Apply to save all changes.