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SpeechEvalPro is a platform offering pronunciation assessment and scoring API solutions. It utilizes an independently researched and developed educational voice AI model, integrating voice evaluation, speech recognition, and other core technologies to provide high-quality, multi-dimensional Chinese and English pronunciation evaluation APIs. It helps customers create intelligent learning products for human-computer interaction.
Access the SpeechEvalPro API using HTTP or WebSocket protocols. Submit audio files in the recommended formats (16-bit sample size, 16K sample rate, 1 channel; supported formats include opus_raw, pcm, wav, and mp3). Consult the API documentation for specific details regarding question types, time limits, and text length restrictions.
An SDK is not currently available. You can access the service directly via WebAPI, which offers lightweight, cross-platform, and streaming capabilities.
We recommend using a 16-bit sample size, 16K sample rate, and 1 channel. Supported formats include opus_raw, pcm, wav, and mp3. Using other audio formats may negatively impact scoring accuracy.
Phoneme and word modes support up to 20 seconds. Sentence mode supports up to 40 seconds and less than 300 characters. Chapter (paragraph) mode supports up to 300 seconds and less than 10,000 characters. Please refer to the documentation for specific differences between Chinese and English language restrictions.
Free plan available.
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