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Speech Enhancement Tutorial - Evaluation Methods

2.1 Evaluation Methods of Speech Enhancement Systems

The main evaluation methods for speech enhancement systems look at the effect of the system on the intelligibility of the speech signal and the improvement in the overall quality of the signal. The two sections for this chapter will concentrate on Speech Intelligibility and Speech Quality respectively.

There are two methods of assessing the Intelligibility or quality of speech:

Subjective - requires the judgment of human listeners. These can be further divided into two categories:

Objective - the judgment is predicted with some analysis of the system. These can be further divided into two categories:

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