Today
UTC+8
PREPARE YOUR AUDIO

Connect both sides of the lesson.

These permissions belong to your browser. You choose what to share.

1. Connect your microphone

2. Share system audio

Choose your entire screen and enable “Share system audio”. All system playback is captured; no video is saved.

3. Check both audio channels

Speak into your microphone and play audio in ClassIn. Use headphones to reduce speaker pickup.

Close or refresh this page and you will need to prepare again. You can end standby at any time.

Saved audio

Play individual original segments or download the recording and its recovery manifest.