No audio in Synology from IPC-HDW2431T-AS-S2

[rouzbeh]

None of the live stream or recordings (general or events) in Synology Surveillance Station or DS Cam has any Audio, but there is audio on Dahua's app, both for Live view and recorded videos (events , etc.).
Tried to change the audio format settings on Dahua cam between AAC, PCM and G711A but no improvement.
Any idea?

[Solved]
EDIT: Solution is found by adding the camera to Synology Surveillance station as an ONVIF generic camera instead of a Dahua camera. Audio is now properly recorded. Looks like Synology Surveillance station is not directly supporting this camera and a number of other new Dahua cameras yet.

 

[ludshed]

If you’re getting audio from the camera to the app, the solution lies in the synology

 

[Malvineous]

Try changing the sampling frequency to 48000. Some modern devices have problems playing low sample rates, whereas most can do 48 kHz. If you don't see 48000 in the list, change the codec. I don't think the G.xxx codecs support this but AAC does and PCM should too.

As for codecs, PCM should work just about anywhere, but it uses a lot of bandwidth so it's good for testing, but one of the other codecs is preferable once you know things are working.

 

[rouzbeh]

Try changing the sampling frequency to 48000. Some modern devices have problems playing low sample rates, whereas most can do 48 kHz. If you don't see 48000 in the list, change the codec. I don't think the G.xxx codecs support this but AAC does and PCM should too.

As for codecs, PCM should work just about anywhere, but it uses a lot of bandwidth so it's good for testing, but one of the other codecs is preferable once you know things are working.

I can go only up to 16000 for AAC and PCM. Looks like it doesn't support higher. Unfortunately no change in the situation with 16000. What do you suggest?

 

[Malvineous]

Not sure in that case, you might have to ask on a Synology forum what their supported codecs and sample rates are. 16k is still pretty low.

 

[rouzbeh]

Not sure in that case, you might have to ask on a Synology forum what their supported codecs and sample rates are. 16k is still pretty low.

Solution is found by adding the camera to Synology Surveillance station as an ONVIF generic camera instead of a Dahua camera. Audio is now properly recorded. Looks like Synology Surveillance station is not directly supporting this camera and a number of other new Dahua cameras yet.