Intensity-importance functions for bandlimited monosyllabic words

The Journal of the Acoustical Society of America
G A Studebaker, R L Sherbecoe

Abstract

A study was carried out to determine the relative importance to speech intelligibility of different intensities within the speech dynamic range. The functions that were derived are analogous to previous descriptions of the relative importance of different frequencies and are referred to here as intensity-importance functions (IIFs). They were obtained as follows. Sharply filtered bands of speech (NU6 monosyllabic words) were mixed with filtered noise and presented alone or in pairs at 19 signal-to-noise ratios (-25 to 41 dB). When paired bands were tested, the level and signal-to-noise ratio (SNR) of one band were held constant while the level and SNR of the other band were varied. The listeners were 100 normal hearers, organized into five 20-person groups. Each group provided speech recognition data for one of five frequency regions (141-562, 562-1122, 1122-1778, 1778-2818, and 2818-8913 Hz). Comparisons of the results for each group indicated that IIFs vary with frequency and SNR. Current methods for predicting intelligibility from physical measurements of speech audibility would need to be revised in order to take such findings into consideration.

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Citations

Mar 7, 2006·Ear and Hearing·Mohan D Rao, Tomasz Letowski
Jul 3, 2008·Ear and Hearing·Steven J Aiken, Terence W Picton
Feb 12, 2005·The Journal of the Acoustical Society of America·James A BashfordPeter W Lenz
Jan 10, 2012·The Journal of the Acoustical Society of America·Ryan W McCreery, Patricia G Stelmachowicz
Aug 1, 2006·The Journal of the Acoustical Society of America·Judy R DubnoJayne B Ahlstrom
Sep 15, 2005·The Journal of the Acoustical Society of America·Judy R DubnoJayne B Ahlstrom
Sep 23, 2014·The Journal of the Acoustical Society of America·Michael A Stone, Brian C J Moore
Aug 17, 2012·The Journal of the Acoustical Society of America·Michael A StoneBrian C J Moore
Mar 25, 2010·The Journal of the Acoustical Society of America·Koenraad S RhebergenJoost M Festen
May 12, 2009·The Journal of the Acoustical Society of America·Joshua G W Bernstein, Ken W Grant
May 12, 2009·The Journal of the Acoustical Society of America·Jianfen MaPhilipos C Loizou
Oct 26, 2010·The Journal of the Acoustical Society of America·Michael A StoneBrian C J Moore
Oct 7, 2011·The Journal of the Acoustical Society of America·Michael A StoneChristian Füllgrabe
Aug 4, 2007·The Journal of the Acoustical Society of America·Van Summers, Mary T Cord
Nov 18, 2011·The Journal of the Acoustical Society of America·Cas Smits, Joost M Festen
Dec 17, 2009·The Journal of the Acoustical Society of America·Koenraad S RhebergenWouter A Dreschler
Oct 9, 2012·The Journal of the Acoustical Society of America·Richard L FreymanAndrew J Oxenham
Feb 2, 2016·The Journal of the Acoustical Society of America·Lauren CalandruccioKaren A Doherty
Jul 1, 2008·International Journal of Pediatric Otorhinolaryngology·Elizabeth Dinces, Elyse Sussman
Apr 3, 2004·The Journal of the Acoustical Society of America·Richard M WarrenPeter W Lenz
Nov 10, 2004·The Journal of the Acoustical Society of America·Hannes Müsch, Søren Buus
Sep 9, 2006·Trends in Amplification·Pamela E Souza, Kelly L Tremblay
Sep 1, 2002·Trends in Amplification·Amyn M AmlaniTeresa Y C Ching
Jun 7, 2017·Journal of Speech, Language, and Hearing Research : JSLHR·In-Ki JinKathryn H Arehart
Nov 2, 2002·Ear and Hearing·Robert L Sherbecoe, Gerald A Studebaker
Mar 3, 2020·The Journal of the Acoustical Society of America·Michael A StoneShanelle Canavan
Jun 4, 2019·The Journal of the Acoustical Society of America·Lucas StamCas Smits
May 3, 2018·The Journal of the Acoustical Society of America·Sarah E YohoEric W Healy
Apr 14, 2009·International Journal of Audiology·Patrick J BoyleBrian C J Moore

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