No dub loaded
Click Load Dub (or drop a file here) and choose a
.zip archive. Choicer Voicer opens its first folder and
plays dub_video.mp4 or dub_video.webm —
natively, with captions from any NNN_Name.txt files it
finds alongside the video.
This .ogv can't be decoded by your browser
Chrome removed native Theora decoding in 2024, so an .ogv
file will load but render a black frame. There are two ways out —
pick whichever suits you.
Recommended: convert the file once, offline, then
repackage the zip with the result inside the same folder. Native
ffmpeg runs 10–100× faster than any in-browser option.
ffmpeg -i dub_video.ogv \ -c:v libx264 -preset medium -crf 20 \ -c:a aac -b:a 128k \ -movflags +faststart \ dub_video.mp4
Or: convert it right here in the browser with
ffmpeg.wasm to MP4. Slower (~1–3 min per minute of
video), but no external tools needed — and once it's converted,
Start Dubbing and MP4 export unlock for the .ogv pack.
Duration
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Clips
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Now playing
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Dub studio
0 / 0 recorded
Record your own voice for each line. Every take gives you a 3…2…1
countdown to get ready, then keeps rolling 2 s past the end of the
line — you can hit Cancel during the countdown, or Stop any time.
Headphones recommended: the original line + backing play as a guide
while you record. Lines you leave unrecorded keep their original
voices in the export.
1 / 1
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Recorded
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Microphone
names appear after the first recording permission
Voice quality
Mic volume
100%
voice cutting out? keep noise cleanup OFF — raw input + levelling works best for a good mic
effects are baked into new takes — existing takes keep their sound · the quick voice-effect menu above is a shortcut for these same sliders
ORIGINAL
YOUR TAKE
0.00 / 0.00 s
Pick a clip and press ▶ Original to hear it.
Your dub is ready
Multiplayer dubbing
or join a friend's room:
Everyone loads the same dub zip on their own machine — only the roles, progress and recorded voices travel through the room (no sign-up needed).
Room —
Pick your roles — every role can be held by ONE person at a time (first come, first served; the host picks first):
Crew progress:
record every one of your lines to finish
Host controls (only you see these):
unlocks when every crew member has finished sharing
Pack editor
Upload a video to start a new dub pack.
Make a dub pack — drop a video here (
.mp4, .webm or .ogv)
or upload it, caption the lines on the timeline, add a backing track, save the zip.
1 · video2 · captions3 · backing track4 · save
this browser can't decode Theora — the converted MP4 is used for editing and goes into the pack, so it plays everywhere
0:00.0 / 0:00.0
full
0 captions · backing: none
one row per character · hold + drag inside a row to add their captions · drag a caption to another row to reassign it
Hold + drag = new caption · drag edges to extend/trim, or keys [ ] start / ; ' end (Shift = fine) · right-click a caption for actions · N new · I/O at playhead · Del delete · space play · ←/→ seek
No captions yet — press hold + drag on the timeline above, or N to add one at the playhead. The waveform shows where sound happens, so line up your captions with it.
Problems
Ready — waiting for a dub archive.