Tick in sound when loading video

[PatrickVossen]

Hello,
We have noticed a crackle/tick in the sound when loading a videofile into the engine.
This occurs on several W10 systems with several soundcard types. (onboard/usb/pci)
I guess that this tick is in the soundcard, not in the application, I also noticed it when listening to internet radio in Chrome browser and when loading a MP4 (AAC/AVC) into the MMS engine the crackle occurs. The used codec is latest KLite (LAV) but also on W10 codecs.
I have checked and issue occurs with AdjMmsEng v10.7 but also with v13.1.1.6.

Has someone a solution for this?
Grtz Patrick Vossen

[Administrator]

Hello,

it's very likely to be an issue with a temporary overload of the CPU, while the DirectShow filters graph is built, that will cause audio interrupts to be ignored for a little amount of time.
You may eventually try to disable mixing into the LAV Audio configuration in order to see if the issue disappears: this setting can be accessed from the Windows start menu: "Start\K-Lite Codec Pack\Configuration\Lav Audio" then select the "Mixer" tab and uncheck the "Enable mixing" checkbox. You may eventually try to play with other settings available.

Hope this helps.

Kind Regards

Severino Delaurenti
MultiMedia Soft

[PatrickVossen]

Hi Severino,

Thanks for your response.

I have been testing what caused this and I found the cause.
The issue happens on W10 where 2 monitors are connected, the main monitor is VGA/onboard connected (Intel HD Graphics 630) and the second screen is connected using NVidia NVS 310.
The video application needs to be running on the 2nd screen and the audio application on the main screen.
The Nvidia card is running latest driver but the Intel display is NOT running on a recent driver because the OS is W10 IOT 2015 and the latest driver for the Core i3 processor that can be installed on such an old OS is a 2016 driver. (and IOT does not allow mayor updates)
A workaround is to start another video screen on the main monitor and load a video file into it and pause this one.

Grtz Patrick

[Administrator]

Hi Patrick,

thanks for your feedback: drivers are always a big challenge, when they are not good enough the high level software will be never able to behave at its best.

Kind Regards

Severino Delaurenti
MultiMedia Soft