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TaskSpeech® Lab (TSL) is a standalone speech & voice laboratory.

With this analysis app, you can explore automatic speech recognition (ASR) under various controlled conditions. TSL provides both educational and speech-research value in a small-footprint package, and is for designers, programmers, researchers, teachers and learners. It gives you direct hands-on experience, promoting a deeper understanding of ASR's inner workings. The resulting knowledge informs the design, development and testing of any speech and voice applications you may be considering.

- Comes with default vocabulary and settings -- just download, tap and speak.
- You can create your own vocabulary and settings easily.
- Everything is driven by a parameter (text) file: you edit or create new parameter files to run your experiments.
- No need to be connected to the internet, everything runs locally on the iPhone.
- Learn about grammars and language models, end-pointing, nBest and error types.
- Sample files and example vocabularies available free online.
- Uses free, speaker-independent, open source, connected speech from CMU PocketSphinx project.
- Useful for personal experimentation, classroom and lab instruction, workshop presentations and more.