Transcribe and subtitle

Connect the Scenario MCP

Connect your agent and sign in once at mcp.scenario.com. Then tell it which Scenario team and project to use, so every file lands there.

Give the agent the recording

The audio or video to transcribe: upload it with upload_asset or give its asset ID. Add the names and invented words it should spell your way.

Brief the agent: the transcript and the SRT

Transcribe my recording with Gemini 3.5 Transcribe (model_google-gemini-3-5-transcribe), reading model_schema_get first for the parameter names. Language hint en-US, custom vocabulary: Keeper. Word timestamps on; speaker diarization off (on if it's a dialogue). I want the text and the SRT. Quote the cost with a dry run first and wait for my go.

Fix the SRT

Wait for the job with jobs_wait and download the SRT with asset_download. Show me the transcript against my script, if I gave you one, and list every word that differs. Then split every subtitle longer than about seven seconds at a comma or a breath, one or two short lines each, keep the numbering in order, and write numbers one way throughout. Show me the fixed SRT before anything else.

Burn in, only if the platform needs it

Deliver the SRT file when the platform takes one. Burn in only when it can't, and watch the result on the target device.

Burn the subtitles into my video with Scenario Caption Studio (model_scenario-caption-studio), reading model_schema_get first. Style preset Modern Chip, target language Auto. If the schema takes an SRT, upload my fixed SRT with upload_asset and use it for the text and timing. Quote the cost with a dry run first and wait for my go.

Check and report

Accept when every word matches, names are spelled your way, numbers are written one way and each subtitle is short enough to read. Reject a wrong or missing word, swapped speaker labels or burned-in text over an important part of the picture.

Create a collection with the recording, the transcript, the fixed SRT and the subtitled video, and report the models, the settings and every asset ID.

Open the transcription model

Create › Text › Gemini 3.5 Transcribe. Under Audio, drag and drop the recording, click Select from Library, or Upload.

Help it with names and language

In Language hints, type a code such as en-US and click Add; in Custom vocabulary, add names and invented words one at a time, here Keeper. Keep the list to distinctive terms.

Choose the settings and generate

Under Settings, turn on Speaker diarization for dialogue and Word timestamps for subtitles; either one lowers the longest file from 60 minutes to 30. Generate gives a text file and an SRT.

Fix the SRT by hand

Open the SRT in any text editor, fix words in place and split long subtitles at a breath, each on screen for about seven seconds at most, with its own number and time range. Write numbers one way throughout.

Burn subtitles into the video

Pick Auto Subtitles or Scenario Caption Studio and add the video under Input Video. In Caption Studio: Style Preset Modern Chip, Translation › Target Language Auto, and Subtitles (SRT) for a fixed SRT; then watch the result on the target device.

Prefer a file where you can

If the platform takes an SRT, deliver the SRT: you can fix it any time. Burned-in subtitles can't be turned off or corrected without generating the video again.