How many speakers, how many texts – the automatic assessment of non-native prosody
Florian Hönig, Anton M. Batliner, Elmar Nöth · 2015
We present an in-depth analysis of a method for automatically scoring the prosody of non-native speech.For studying its suitability for different application scenarios, we perform a systematic comparison of different evaluation schemes such as text (in-)dependence and/or speaker (in-)dependence.The focus lies on methodological issues, with the aim of promoting the careful evaluation of automatic assessment methods.Further contributions are the analysis of (1) a method that utilizes speaker IDs to improve performance, and (2) the analysis of performance as a function of the number of speakers and texts used for training the system.