AWS adds WhisperX to SageMaker for speaker-labeled audio transcription
AWS released a WhisperX-based deep learning container for Amazon SageMaker that adds speaker diarization and per-word timestamps to OpenAI’s Whisper model. The container supports real-time (60-second cap) and asynchronous (unlimited duration) endpoints, with outputs in JSON, SRT, or VTT formats. It handles contact-center calls, legal depositions, and media transcripts, enabling compliance…
Key points
- WhisperX container adds speaker labels and per-word timestamps to OpenAI’s Whisper model for SageMaker
- Supports real-time (60s cap) and async endpoints with S3 integration for long audio processing
- Outputs in JSON, SRT, or VTT formats; requires GPU instances and S3 buckets for async workflows
The solution requires GPU instances (e.g., ml.g4dn.xlarge or ml.g5.2xlarge) and S3 buckets for async workflows. AWS provides a JupyterLab notebook for deployment, with best practices like AMI pinning, autoscaling, and S3 security. The container is pre-configured with Whisper, wav2vec2 alignment, and diarization weights, eliminating the need for manual model setup.
Speaker-labeled transcription with WhisperX on SageMaker AI
AWS Machine Learning Blog · 24 September 2026
Loading the full article…
This text was published by AWS Machine Learning Blog and written by Ayush Sharma. It is reproduced here with attribution so you can read it in full; the rights remain with the publisher. Read it at the source ↗
The headline, key points and digest above were generated by Digest AI's editorial model from the linked sources. Automated summaries can contain errors: the sources are the record. Spotted a mistake? Tell us. Published by Martin K., who runs Digest AI and handles corrections.
More in Enterprise & Industry
All →- Gemini introduces 3.8 Live with Live Avatar · 2 src
- Oracle sends force majeure notice for New Mexico Stargate data center · 1 src
- BNP Paribas signs five-year agentic AI deal with Google Cloud · 1 src
- Anthropic partners with OpenEvidence to bring free medical AI to 100 countries · 2 src
- Trebellar raises $18M Series A to add AI agents to corporate real estate · 1 src
Comments
via GitHub Discussions