iOS screen recording - enable Safari audio?

Question

I'm making screen recordings of an in-house web app, using iOS Safari and the built-in iOS screen recorder. No audio is recorded. If I enable microphone recording, the audio is recorded but poorly and mixed with room sound (likely recording the device's speaker). The same is true of native apps with WKWebViews.

I'm curious what's happening here. Is Safari/Webkit actively blocking audio recording? Is there a Javascript or Webkit instruction to enable audio recording?

Note that I'm not trying to get around any protection from recording commercial videos, just sounds generated from my own site/app, in order to make promotional videos. So changes made within my app or web site are fine.

Answer 1

禁用麦克风音频并将设备连接到外部音频源（例如耳机）。