Generate Podcast Chapters

What it uses

Install

terminal

$pip install pixeltable whisperx openai

Environment variables it names

OPENAI_API_KEY

Pixeltable calls

pxt.create_table()pxt.create_view()@pxt.udfinsert()add_computed_column()

A look at the code

episodes.add_computed_column(
    transcription=pxtf.whisperx.transcribe(
        episodes.audio, model='tiny.en'
    )
)

One cell of the notebook, copied as it is. Open it in Colab for the rest.

• Convert text to speech

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• Extract audio from video

  Extract the audio track from video files for transcription, analysis, or processing.

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• Transcribe speech and identify speakers with WhisperX

  Transcribe speech with WhisperX in Python, identify speakers, and search the transcript with word-level timestamps.

  Recipe · Updated Oct 13, 2026

• Transcribe audio files with Whisper

  Convert speech to text locally using OpenAI's open-source Whisper model—no API key needed.

  Updated Oct 13, 2026Open in Colab