Dahua DH-XVR5104HS-4KL-I3 User Manual page 166

5.10.3.3 Configuring Siren
When the motion detection alarm is activated, the system links the camera to generate sound alarm.
To use this function, connect at least one camera that supports audio function.
Select Main Menu > ALARM > Alarm-out Port > Siren.
Configure the settings for the siren parameters.
Parameter
Channel
Play
Delay
Audio Clip
Volume
Update Audio Clip
Click Apply to complete the settings.
Table 5-30 Siren parameters
Description
In the Channel list, select a channel that is connected to a camera that
supports audio function.
Click Play to manually trigger the IP camera to play audio file.
Set a length of time for the Device to delay turning off alarm after the alarm is
cancelled. The value ranges from 5 seconds to 30 seconds, and the default
value is 5 seconds.
Select the audio clip for the siren sound. The default setting is Clip 1.
Select the volume for the audio clip. You can select the flash frequency from
Low, Middle, and High.
Import the upgrade audio file (.bin) to upgrade the alarm audio file of the
camera. For details, see "Upgrade Audio File of Camera
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Siren
User's Manual