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Re: Monaural/Binaural P/I functions

You might find the following paper interesting, although it does not answer your question fully.  It is on the CD  "Study of Speech and Hearing at Bell Telephone Laboratories:  The Fletcher Years" available from the Acoustical Society of America: 
8/15/1932, Hammer, K.E., : "Binaural Circuit Articulation Tests (Second copy)", (30 pages)
Christine Rankovic, PhD
Articulation Incorporated
36 Hampshire Street, 2nd Floor
Cambridge, MA  02139
AI = V x E x F x H
----- Original Message -----
Sent: Tuesday, November 11, 2003 2:46 PM
Subject: Monaural/Binaural P/I functions

Hello all,

I’m trying to find data showing speech recognition performance as a function of SNR obtained both monaurally and binaurally (preferably in the free field). My assumption is that the Performance Intensity (or performances vs SNR) function will be a bit steeper (as well as offset) for the binaural condition compared to the monaural condition. I’m looking for data to confirm or reject this assumption.


Any reference suggestions?








Benjamin W.Y. Hornsby, Ph.D.

Research Assistant Professor

Vanderbilt Bill Wilkerson Center

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e-mail: ben.hornsby@vanderbilt.edu