I put together a repo for training a local GLaDOS-style TTS voice from your own installed copies of Portal and Portal 2:
https://github.com/JoeHelbing/glados-tts-build-kit
Writeup: https://www.joehelbing.net/post/glados-tts
The important bit: this does not include Valve audio, extracted clips, transcripts, samples, checkpoints, or trained weights. It's just the pipeline. You provide your own local game files, and everything generated stays under ignored local data/ paths.
What it does:
- Extracts the GLaDOS voice lines from local Portal / Portal 2 VPKs
- Converts the Source MP3-in-WAV files into clean 24 kHz mono PCM
- Transcribes the clips with Cohere Transcribe through CohereX
- Scrapes Portal Wiki transcripts as a ground-truth reference
- Reconciles the two transcript sources and filters bad/mismatched clips
- Optionally gives you a little local web UI to hand-review messy clips
- Builds manifests and trains a local OmniVoice TTS model
Basically, I wanted something reproducible where someone who already owns the games could run the pipeline locally instead of downloading somebody else's dataset or model weights.
Credit where due: I got the original game-file extraction idea from systemofapwne/piper-de-glados, then built this version around a full source-only training pipeline.
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