prDS IEC TR 63558:2025 ED1:2026

Automatic speech recognition: Classification according to acoustic and linguistic indicators in real-life applications

Scope

IEC TR 63558:2025 describes the factors related to classification of the real-life environment according to acoustic indicators and linguistic indicators. The set of factors can be used to describe complexities of use scenarios, from level 1 to 4, and can be helpful when setting up the testing environment.
This document applies for evaluating automatic speech recognition technology which is widely used for smart equipment, such as smart speakers