Hi, @koezukar,
Thank you for posting in the Developer Forum. The Web SDK (1.9.1) does not entirely support IOS audio. Currently, only webinar attendees are able to listen using Mobile safari. For reference, I’ve linked our supported browsers help documentation. We are actively testing the audio quality for the Safari AudioWorklet, and currently don’t have a timeline yet. Once the audio quality testing is completed, we will release it. Be sure to follow our release log and blog for the latest news, updates, and fixes.
Please let me know if this helps to answer your question.
Best,
Donte