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Transcribe

Beta

Turn any podcast episode into a searchable, clickable transcript.

PodcastStandard / Friendly / Market Collaborative

What it does

Takes an audio feed item and produces a time-stamped WebVTT transcript. Runs entirely in-browser via Whisper (WebGPU/WASM). Market Collaborative tier shares the result so subsequent listeners skip the compute entirely.

Example output

JSONFeed extension fields attached to each processed item.

{
  "_transcribe": {
    "status": "complete",
    "format": "webvtt",
    "word_count": 8420,
    "duration_seconds": 2814,
    "language": "en",
    "model": "whisper-large-v3",
    "confidence": 0.91
  }
}

Enables downstream workers

Once this worker runs, these workers can process the result without re-reading the source.

Show NotesTranslationAd MarkersSentimentRelated Episodes

Use cases

  • Search through a podcast like a webpage
  • Quote a specific passage with a timestamp link
  • Accessibility โ€” deaf and hard-of-hearing listeners
  • Foundation for downstream workers (show notes, translation, ad detection)
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