What to do when there is no audio from ONVIF cameras in BVMS?
Question
What to do when there is no audio from ONVIF cameras in BVMS?
Answer
Integrating ONVIF cameras with BVMS may lead to situations where audio is not available in live view or playback within Bosch Operator Client. This behavior has been observed especially with Axis ONVIF models, such as PTZ devices featuring built-in microphones.
Symptoms
Audio icon appears in Operator Client, but no sound is heard in live view or recorded playback.
Audio streams are visible and enabled in Configuration Client.
Audio plays normally when accessing the camera directly through its web interface.
Audio from native Bosch cameras functions correctly.
With VSG enabled, Operator Client receives video but no audio. When VSG is bypassed (direct camera connection), audio works.
The issue is linked to BVMS versions 12.1–12.3 and stems from an ONVIF audio handling defect affecting Axis and other third-party cameras.
This is documented as issue 481212 and affects systems using VSG as well as direct ONVIF integrations.
Bosch released targeted patches for BVMS 12.1, 12.2, and 12.3. If ONVIF audio from Axis or other third-party cameras is missing in BVMS, even though camera-side audio works, installing the corresponding ONVIF Audio Fix patch resolves the issue. Ensure that the matching VSG version is used and follow the patch-handling instructions carefully when upgrading BVMS versions.
Patch Overview by Version:
BVMS 12.1
For that we have BVMS patch
BVMS1210414_Patch_Cum19_481212.zip --> replaced by BVMS1210414 Patch Cumulative 22
VideoStreamingGateway_9.1.6.1.zip
BVMS 12.2
For that we have BVMS patch BVMS1220296_Patch_AudioOnvifCam_481212.zip
VideoStreamingGateway_9.2.2.2.zip
BVMS 12.3
For that we have BVMS patch
BVMS1230171_Patch_Cum3.zip --> replaced by BVMS1230171 Patch Cumulative 8
VideoStreamingGateway_9.3.2.3.zip
Important note from the patch documentation:
If upgrading from BVMS 12.2.0.296 to BVMS 12.3.0.171, the patch must be handled as follows:
Either remove the 12.2 patch before upgrading
Or upgrade to 12.3.0.171 first, then apply the matching 12.3 patch