Affected Roles: Administrator, Owner
Related Digital Watchdog VMS Apps: C3™ CMS, VMAX Web Viewer
Firmware Version: v18.104.22.168 or newer
Last Edit: May 17, 2021
The VMAX® A1 Plus™ (5 MP) DVR features Audio-In and Audio-Out (I/O) support, enabling users to individually monitor audio input for up to four (4) cameras and/or emit audio through one (1) camera (requires connecting an external speaker).
This article will outline how to enable audio recording and configure which cameras are assigned for Audio-In with the VMAX® A1 Plus™.
When using the DW Mobile Plus™ mobile application, C3™ CMS, or VMAX® Web Viewer to manage the VMAX® A1 Plus™, audio support is limited to computers only.
To set up the VMAX® A1 Plus™ for Audio (I/O) support:
When installing an external microphone, avoid orienting the microphone in such a way that nearby surfaces that can bounce sounds into the microphone input. Directing a microphone at a wall or ceiling may cause an echo.
You can connect an RCA microphone or RCA speaker to the audio ports located on the rear panel of the VMAX® A1 Plus™.
At the DVR, enter the User ID and Password of the Administrator/Owner or of an equivalent role.
The Setup Menu will display. Click on Device, then select Audio.
Next, from the Audio menu, configure the following:
Once you have enabled the desired audio settings, click the Save button to apply the settings.
**NOTE: The Audio-In (RCA) ports on the rear panel are numbered for system reference purposes.
In the Setup Menu, open the Record menu and select Camera.
The Record>Camera menu will display.
Locate the Audio column and assign the associated audio channel (i.e. Audio1, Audio2, etc.) to the associated camera.
Click the Save button to apply the settings.
Click the Second Stream tab and locate the Audio column.
Assign each associated audio channel (i.e. Audio1, Audio2, etc.) to same camera channel that was assigned in Step 4 above.
Click the Save button when you are finished.
When monitoring audio, be sure to view the desired channel in either a single-channel view or double-click on the target channel specifically.
**NOTE: If live audio does not play when viewing remotely, check that the audio function on the computer or mobile device is not muted. Additionally, make sure that the microphone is powered-on and that the RCA connections between the microphone and the DVR are securely fastened.