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A Method For Calibrating Speech Recognition Testing In Small Audio Chambers

IP.com Disclosure Number: IPCOM000030306D
Original Publication Date: 2004-Aug-04
Included in the Prior Art Database: 2004-Aug-04

Publishing Venue

IBM

Abstract

When testing speech engines in a small audio test enclosure with a speaker and a microphone, the sound reflections inside the enclosure can affect the test results negatively. By setting an optimal microphone gain, speaker loudness and the distance between them, this negative effect can be minimized to yield more consistent and reliable test results