Best posts made by Rodp

@joseph_1979 to add to this, my phone works fine using the highest frame rate, bit rate and resolution using the rtsp stream via VLC. The problem is though you don't have the talk back feature hence why I am trying to raise awareness of the issue and get it fixed.

Hi @joseph_1979, from experimentation, I've learnt that resolution and bit rate on the high and low quality stream doesn't have any effect, it's in variably the frame rate that impacts the audio.

PS how do you earn reputation points? I can only reply every half hour

Some pics (wouldn't let me include them in the previous reply! I think it didn't like inline images rather than inserting from a file and now it's told me I have to wait 600 seconds and now 1800 seconds before adding another post as I don't have enough reputation points! )

These settings stopped the phone stuttering at the expense of recording frame rate which i fear may also impact the NVR - can anyone confirm that ?




Thanks

Rodp

@joseph_1979 thanks for the reply, I have access to a huawei media tab 2 and that shows the same issues. However I have just asked a friend to trial it as they have a brand new moto g23 running android 13 and it looks like it's fine on that, so it's not just my phone, but could be something due to older android versions? Memory is not an issue on my phone. 700-1.2gb rom memory free.

Any thoughts

Rodp

Hi All,

I have an update... By reducing the frame rate (via the web user interface of the camera) from a default of 20 for clear and 15 for fluent down to 4 or 6 respectively, the audio no longer stutters, so that's great new, however this is detrimental to the video frame rate that you view on the phone but at least you can actually now here the person speak clearly now. Would this setting also stop full 20fps or 15frps recording on an NVR if I was to buy one?

On a technical front, changing the FPS will amend the encoding process on the camera I suspect. Some other devices (i've borrowed) have been fine at higher frame rates - even at the max) so do you think this might mean a problem with the encoding (ie camera firmware) or decoding (a combination of the phone and app)?

Changing the birate has no effect it seems, changing to the lowest quality or leaving it on the highest settings makes no difference. However, disabling the hardware decoder setting on the App on my phone does cause the audio to stutter again, even at the lowest frame rates.

Please could someone advice what this might mean (as technical as you like as I will plan to forward this to the engineers in hope that can make a change).

Thanks

Rodp


Key points: (unable to paste images in!)
Fluent mode: On the web user interface, by increasing the Frame Rate setting from either 4 or 7 to 10 or 15, the audio starts to stutter on the phone app.
Clear mode: When I am using the App on High / Clear mode, reducing the FPS from 20 down to 6fps or lower stops the audio from stuttering.
Disabling the hardware decoder setting causes stuttering to occur again, even at these low FPS settings, on both Clear and Fluent modes.

Phone in use, Android 8.0, Samsung A5 2017