Symptom
Resolution
To receive an audio notification, the OnGuard application server must have a sound card installed.
For virtual machines, the server hosting the virtual machine must have a sound card. Without this, audio notifications will not play on client machines.
a). Check the sound card in the computer. Ensure that mute is not selected and that the volume settings are correct.
b). Check if Enable audio support is selected under Setup > System Options > Security > Audio Support.
c). Check that the correct audio input source is selected under Setup > Video & Audio > Audio Settings.
2. Poor audio quality:
a). Stuttering - Reduce the number of listeners and viewers. Decrease image resolution and compression.
b). Unsynchronized audio and video using H.264 - Synchronize the product's date and time settings with an NTP server. Go to Setup > System Options > Date & Time.
c). Distorted audio- Check that the correct audio input source is selected in Setup > Video & Audio > Audio Settings.
d). Feedback loops - Feedback loops might appear in full-duplex mode. Try moving the microphone or the speaker, or use half-duplex mode instead.
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