Hi support,
I have an encoder with one video input, and stereo Audio input.
The encoder vendor declares that there are two audio inputs, left and right.
In the Corporate 7.0a Management Client, I can see one Video and two Microphones, 1+2.
However, only Microphone1 is active, and audio is indeed available.
Microphone2 shows “broken connection”.
The audio codec in the device is set to G7.11 a-law.
When using VLC, I get the video and one audio stream (left audio).
How does the Milestone server define and connect to such a device?
What should be done to allow both Microphones to be active in Milestone?
10x,
Boaz
No, this will not work like this, for a number of reasons.
The Audio codec G.711 (originating from the phone industry) is not multichannel capable, so mono sound only.
The XProtect software can only relate one speaker and one microphone per camera.
So I’m afraid this is currently impossible, but I will forward as a feature request for the Product Managament, thank You.
Thanks for the answer.
I just found that the Encoder also supports AAC audio codec.
I changed the device setup accordingly, checked with VLC Player, and indeed Stereo audio is active.
The device is using the ONVIF driver.
In the Mangement client, I could see that the for the HW device Microphone, it has only G711 option in the drop-down menu.
How do I set Milestone (corporate 7.0a) to use the AAC codec?
10x,
Boaz
There are a few requirements for AAC-audio, that in most cases prevent us from using this codec. The XProtect Corporate can certainly use AAC, but this requires both AAC support in the camera device driver (in order to understand the audio stream), as well as licensing, i.e. the manufactorer need to license this encoding. This is not necessarily the case, even if you can choose AAC on the device. Only a few late model Axis cameras and encoders has this working.
Hi Michael,
As the encoder uses ONVIF driver, does this mean that if the driver is updated to use AAC, then it will be supported and stereo audio will be available (or two mono microphones in my system)?
If so, is this feature about to be added?
Boaz
I would like to go further than Michael and say that XProtect does not support AAC. Not for technical, but for legal reasons (licensing).