Joined Round RecordingCopy Anchor Link

Once the speeches of a round are recorded, Join round recording puts them in round order in one MP3, plays it back with captions and each debater's webcam, lets you fix where every speech begins, and saves it all to the site's cloud storage.

• Nav: /debate, the speech recording menu (⋮ or "Mic & recording") → Join round recording…
• Package: debate-timer (recorder/RoundRecordingDialog.tsx, recorder/SpeechStartsDialog.tsx, recorder/round-recording.ts, recorder/round-recording-audio.ts, recorder/round-recording-cloud.ts, recorder/media-store.ts), debate-round (round/round-recording-items.ts, webcam/useRoomSpeechRecorder.ts), app (/api/round-recordings, lib/round-recordings/storage.ts, R2 binding ROUND_RECORDINGS)

What it doesCopy Anchor Link

• One MP3 for the round. Every speech with a recording is joined in round order with a one-second gap, at 32 kHz mono, 64 kbps — about 30 MB an hour. Cross-ex has no recording of its own; it is timed inside a speaker's recording. The MP3 is built in your browser and can be downloaded.
• Optional processing.
  • Read each speech's name — a Kokoro voice (through /api/tts) says "1 A C" before the 1AC, and so on.
  • Captions from the live transcription — what the browser heard while each speech recorded, moved to where the speech sits in the MP3.
  • Transcribe with Moonshine — runs the Moonshine speech model on your device over the joined MP3 for more accurate captions. The model downloads the first time.
• Speech start times. Each speech's start is tracked. Adjust speech starts opens a modal listing every speech: play to where it begins and press the crosshair, type m:ss, nudge ±5 s, jump to it, or clear it. The same modal labels speeches on a YouTube round (watch page → Speech starts), docked in the corner so the video stays visible.
• Webcam video. Turn on Record webcam video in the recording menu and your camera is recorded with each speech. Debaters in the round's Cameras room are each recorded separately from what your browser receives. In playback, every debater's clip for the current speech plays in step with the MP3.
• Save to cloud. Uploads the MP3, captions, webcam clips and a manifest to a private R2 bucket under your account. Only you can stream them back. Nothing uploads until you press the button.

Known gapsCopy Anchor Link

• A speech resumed after a pause keeps only its last webcam clip.
• Cloud copies are per account; other debaters see the round only from their own uploads.
• Files over 95 MB (about 25 minutes of webcam video) are refused.