C1. Introduction

06.773GPPMinimum Performance Requirements for Noise Suppresser Application to the AMR Speech EncoderTS

This document contains the complete set of subjective test experiments for the testing of the speech performance of Noise Suppression solutions for application to AMR. The purpose of the tests is to check for compliance to the recommended minimum performance requirements [1].

The AMR-NS Selection Tests are split into 4 main Experiments and 7 Sub-Experiments listed in the following table.

Exp. No.

Title

No. of
Sub-Exp.

1

Degradation in Clean Speech (PC)

1

2

No degradation of Speech and no Undesirable Effects in Residual Noise in Conditions with Background Noise (ACR)

3

3

Performances in Background Noise Conditions (Mod-CCR)

2

4

Influence of Input Level, Voice Activity Detection and Discontinuous Transmission (Mod-CCR)

1

Total Number of Sub-Experiments:

7