One thing need to be checked is PTS/DTS Timestamps: Presentation Time Stamp (PTS) and Decode Time Stamp (DTS) for synchronizing audio and video.

The most important is to know the equipment you are using and also the software, then I just go step by step : 1 checking connection (always prefer wired connection, check bandwidth and background app) 2 Adjust stream settings (bitrate, match frame rate ...) 3 check audio sync settings and prefer hardware encoding 4 check platform specific issues 5 the last and the most useful use a dedicated audio sync tool

Before attempting to live stream make sure your mums internet is up to the job and the WiFi in your bedroom is stable. Ideally wait until your mum goes to bingo and stream from the living room (make sure the neighbours can’t see you though)

Some times it's due to network congestion, server or PC high cpu utilisation, and vid3oconference application issue. Try to restart the meeting if possible, check the processes and system resources and for sure enforce quality of service for the videoconferencing traffic and top priority of the application on the local resources.

Stream: Sometimes, simply restarting the video or stream can resolve sync issues. Try a Different Source: Play another video to see if the issue persists. If the issue is only with one particular video, it might be a problem with that file. Check your hardware. Be the first to add your personal experience. Adjust your software settings. ... Test your audio before going live. ... Use a dedicated audio mixer. ... Use a direct monitor feature. ... Use a sync offset feature. ... Here's what else to consider.