Network Video Recorder User Manual
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7.4 Configure Audio Parameters
After an network audio device is added, you can configure its parameters, including output
volume, sampling rate, DNR (digital noise reduction) level, etc.
Before You Start
Ensure you an audio device is added to your recorder, and the network connection is valid.
Steps
1. Go to Business Application → IoT → Audio → Audio Parameters.
Figure 7-6 Configure Audio Parameters
2. Set the parameters as your desire.
3. Click Apply.
7.5 Search the IoT Record
Search alarms by time, by event type, or by channel.
Steps
1. Go to event record interface.
– Access control: Go to Business Application → IoT → Access Control → Card Swiping Record.
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