Help Center/ Speech Interaction Service/ API Reference/ Before You Start/ Overview

Updated on 2025-08-26 GMT+08:00

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Overview

Welcome to Speech Interaction Service API Reference.

Speech Interaction Service (SIS) lets you get instant responses by accessing and calling APIs in real time.

The APIs provided by SIS are proprietary APIs.

**Table 1** Real-Time Automatic Speech Recognition (RASR) API
API	Description
RASR	This is a WebSocket API provided by Huawei Cloud, and is used for real-time speech recognition. An audio file is transmitted by fragments. The server can return the intermediate results during the recognition process and the final recognition result after the process is complete.

**Table 2** Short Sentence Recognition API
API	Description
Short Sentence Recognition	This API is used for real-time recognition of short sentences. The entire audio is uploaded at a time, and the recognition result is returned immediately.

**Table 3** Hot word management API
API	Description
Hot Word Management	If there are specific terms in your business domain with subpar default recognition performance, consider utilizing hot word management to incorporate these terms into the lexicon, thereby enhancing recognition accuracy.

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