Technical Program

Paper Detail

Paper:SS-13.4
Session:Objective Quality Assessment of Speech
Time:Friday, May 21, 16:30 - 16:50
Presentation: Special Session Lecture
Topic: Special Sessions: Objective Quality Assessment of Speech
Title: COMPENSATING FOR GAIN IN OBJECTIVE QUALITY ESTIMATION ALGORITHMS
Authors: Stephen Voran; Institute for Telecommunication Sciences 
Abstract: When objectively estimating speech, audio, or video quality, it is often necessary to compensate for a system gain or to “gain match” two or more signals. One can take three views of a system, leading to three different definitions of gain, and three different gain compensation solutions: one that minimizes distortion, one that matches input-output power, and one that maximizes signal-to-distortion ratio. We derive these three solutions, describe the algebraic and geometric relationships between them, and provide a generalized result that subsumes all three. We provide examples showing that these three solutions do differ in practical quality estimation situations. We also report some of the gain compensation choices found in the quality estimation literature.
 
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