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“AWS” — 2 articles ✕

Voice AI· Important· 🧪 Worth Testing

Amazon Polly's Generative TTS engine gets a major accuracy and voice upgrade

AWS has upgraded the Amazon Polly Generative engine with more natural, expressive speech and better accuracy for numbers, addresses and confirmation codes. The update adds 14 new voices across 9 locales, bringing the total to 57 generative voices in 11 languages and 25 locales, including first-time general availability for Hindi and Finnish. It is a drop-in upgrade: voice names, APIs and pricing stay the same, so existing applications work unchanged.

AWS Machine Learning
Voice AI· Important· 🧪 Worth Testing

Deepgram cuts batch transcription costs by porting Nova-3 to AWS Trainium2

AWS and Deepgram jointly rebuilt the Nova-3 speech-to-text model to run natively on Trainium2 chips instead of standard GPU-based PyTorch setups, targeting large offline transcription jobs. The work involved rewriting bottleneck layers as custom kernels and replacing Deepgram's Python serving layer with a Rust runtime calling Trainium directly. The result: a single trn2.3xlarge instance running eight parallel model copies delivers 11-70% more transcribed audio per dollar than Deepgram's prior infrastructure, with similar savings potentially available to customers self-hosting on SageMaker.

AWS Machine Learning