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Tools & Coding

975 summarised stories in Tools & Coding, each linking back to the original source. Browse all topics →

Tuesday, 1 February 2022

Making automatic speech recognition work on large files with Wav2Vec2 in 🤗 Transformers

Hugging Face 4 years ago 15

Hugging Face implemented a technique using Wav2Vec2's Connectionist Temporal Classification architecture to enable automatic speech recognition on arbitrarily long audio files by processing overlapping chunks and discarding predictions from the chunk edges. The most popular Wav2Vec2 checkpoint on Hugging Face Hub receives over 250,000 monthly downloads, and users can now process hour-long files by adding a `chunk_length_s` parameter to the pipeline. This approach also enables live speech recognition where transcriptions appear as users speak, without requiring users to wait for the full audio to be processed.

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TLDRocket 8 August 2026

Mistral AI's release of Shieldstral 1.0 3B marks a practical inflection point in content moderation: safety classifiers are shedding their fixed rulebooks. The 3B model takes policies as plain-language prompts at inference time—meaning a single deployment can enforce different standards for different customers without retraining—while matching the performance of a 20B baseline on both text and multimodal content. It runs on a single 16GB GPU and ships under Apache 2.0, making it available for local deployment across vLLM and llama.cpp. For teams managing multiple content policies or operating across jurisdictions, this matters because moderation no longer requires separate model forks or constant retraining cycles.

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Tools & Coding

Tuesday, 1 February 2022

Making automatic speech recognition work on large files with Wav2Vec2 in 🤗 Transformers

Every AI story that matters, in your inbox by 8am.

Every AI story that matters,
in your inbox by 8am.