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N910 Series - 4K+ Ultra HD 12MP 16 Camera Capable NVR: Sound Detection

The following article provides instructions on enabling Sound Detection on your camera.

Sound detection uses the built-in microphone to trigger recording when abnormal audio or intense sounds are detected near the camera.

Important: Ensure that the camera is not near constant background noise that will trigger audio detection and create false alerts.

Sound Detection is compatible with certain Lorex IP cameras. For a complete list of compatible cameras, navigate to your recorder series at Product Compatibility Chart.

Configuring Sound Detection

Important: Make sure you already have the camera audio enabled on the main and sub-stream of the channel you are configuring, see Connecting Audio Devices for more details.

To configure sound detection:

  1. From the Live View display, right-click to open the Quick Menu, then click Main Menu.
  2. Click Events, then Event Settings. Click the Sound Detection tab from the side panel.

Sound Detection

  1. Select a camera to configure.
  2. Check to enable Audio Exception which will trigger the system when the audio input is abnormal.
  3. Check to enable Intensity Change to trigger the system when the sound intensity exceeds the sensitivity and threshold levels:
  • Sensitivity: Adjust the sensitivity bar to increase or decrease the amount of sound required to trigger an event above the threshold. Sensitivity is a finer setting than the threshold setting.
  • Threshold: Adjust the threshold bar to determine how loud a sound must be to trigger an audio detection event.

Important: To avoid receiving too many notifications from a noisy environment, set the Threshold level to high. The system is triggered easily when the Sensitivity level is set to high and Threshold level is set to low.

  1. Click Setting next to Schedule to choose which days and times of the week to enable sound detection: Sound Schedule
  • Click or click-and-drag along each of the red timelines to quickly add or remove time from each day’s schedule in 30–minute segments.
  • Click Link beside 2 or more days to link schedules (Linked). This allows you to quickly change multiple schedules at once.
  • To make fine adjustments to a schedule, click Modify. This will allow you to set exact start and end times for a schedule.
  • Click OK when finished.
  1. Choose how the system will react to sound detection:

Sound Trigger

  • Record Channel: Select the cameras that will record when abnormal or intense sounds are detected. Set the length of recording following a sound detection event in the Post- REC field.
  • Show Message: Check to enable an on-screen pop-up when one of your cameras detects motion. On-screen pop-up shows the channels an event occurred on and the type of event.
  • Send Email: Check to enable email alerts. You must configure email alerts before you will be able to receive them, see Setting up email alerts.
  • Sequence: Sequence mode will begin. Select the numbered tiles next to this option to include the corresponding cameras in the sequence.
  • Snapshot: Select the numbered tiles next to this option to save a snapshot of the corresponding cameras.
  • PTZ Activation: Set connected PTZ cameras to start a tour, pattern, or go to a preset location.
  • Recorder Buzzer: Check to enable the system buzzer.
  1. Click Apply to save changes.

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