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New English (en-US, en-CA) model release for real time STT #179

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New English (en-US, en-CA) model release for real time STT #179

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13 changes: 12 additions & 1 deletion articles/ai-services/speech-service/includes/release-notes/release-notes-stt.md
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author: eric-urban
ms.service: azure-ai-speech
ms.topic: include
ms.date: 11/19/2024
ms.date: 01/15/2025
ms.author: eur
---
### January 2025 release

#### Real-time speech to text -New English Model Release

Announcing the release of the latest English speech model (en-US, en-CA), which brings substantial improvements across various performance metrics. Below are the key highlights of this release:
1. Accessibility Enhancements
Achieved a 36% reduction in Word Error Rate (WER) on Microsoft internal accessibility test sets, making speech recognition more accurate and reliable for recognizing speech from individuals with speech disabilities.
2. Ghost Word Reduction
A remarkable 90% reduction in ghost words on the ghost word development set and reductions range from 63% to 100% across other ghost word datasets, significantly enhancing the clarity and accuracy of transcriptions.
The new model also improved overall performance, including entity recognition and better recognition of spelled-out letters.
These advancements are expected to provide a more accurate, efficient, and satisfying experience for all users. The new model is available through the API and AI Foundry playground, and feedback is encouraged to further refine its capabilities.

### November 2024 release

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