Fortunately, they are aware of the problem and made an announcement:
>> We are aware of audio issues, especially during talks of day 1 (2024-12-27). Some talks have been released in a preview-version, but are still being worked on behind the scenes.
Likewise here. Even tried the audio only link. It is also choppy, can the organizer upload a better version? It is quite difficult the hear what he is saying sometimes.