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Vosk
Vosk is a speech recognition toolkit that provides offline transcription for over 20 languages across mobile, embedded, and server environments.
Vosk is an open source speech recognition toolkit designed for offline operation. It processes audio input to provide continuous large vocabulary transcription and speaker identification. The toolkit supports over 20 languages and dialects, including English, German, French, Spanish, Chinese, and Russian. Developers can integrate the software using bindings for Python, Java, Node.js, C#, C++, Rust, and Go. It runs on hardware ranging from small devices like Raspberry Pi and Android smartphones to large server clusters.
Vosk at a glance
- Best for: Software engineer
- Runs on: Android, Raspberry Pi, API, self-hosted, open source
- Pricing: Open source
- Released: September 2019
- Category: AI audio tool
- Website: github.com/alphacep/vosk-api
Key features
- Offline speech recognition processing
- Support for 20+ languages and dialects
- Continuous large vocabulary transcription
- Zero-latency streaming API
- Speaker identification
- Reconfigurable vocabulary
- Scalable from small devices to large clusters
Use it for
- Speech recognition for chatbots
- Voice control for smart home appliances
- Input for virtual assistants
- Automatic subtitle creation for movies
- Transcription for lectures and interviews
Alternatives to Vosk
- AuK — It handles zero-shot TTS, editing, and enhancement via natural language.
- WeNet — Achieves state-of-the-art results on public speech datasets.
- Speaches — It acts as an Ollama equivalent for running local TTS and STT models.
- PaddleSpeech — It offers state-of-the-art models and streaming systems for speech tasks.
- Whisper ASR Webservice — Provides a REST API for multiple ASR engines including WhisperX and Faster Whisper.
- FunASR — It supports offline, streaming, and edge deployment with multiple models.
- AssemblyAI — Industry-leading speech models deliver high accuracy and low latency for voice applications.
- sherpa-onnx — Runs complex audio AI tasks offline on local devices and embedded hardware.
- Moonshine — Runs entirely in your browser with no audio leaving your device.
- Willow — Fast, private, open source voice control using local hardware.
- whisper.cpp — It provides high-performance, offline speech recognition on diverse hardware.
- WhisperX — It enables 70x faster, batched transcription with high-accuracy alignment.
All Vosk alternatives