FasterWhisper.NETOffline Speech-to-Text for .NET

A production-ready C# SDK wrapping CTranslate2 for ultra-fast, local Whisper audio transcription.

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High-Performance Engine

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First-class support for Windows, Linux, macOS, Android, and iOS using native RIDs.

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Includes 10 CPU/GPU sample projects covering Blazor, WinForms, Minimal APIs, and MAUI.

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Native Silero VAD v5 ONNX integration for precise audio segmentation and noise filtering.

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Asynchronous push pipelines for live streaming transcription with IAsyncEnumerable support.

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Built-in audio quality metrics, hallucination filters, and memory-mapped model loading.