In space launch operations, speech intelligibility for radio communications between flight deck and ground control is of critical concern particularly during launch phases of flight having a predicted 12 Hz thrust oscillation. The potential effects of extreme acceleration and vibration during launch scenarios may impact vocal production. In this study, the effect of 0.5 and 0.7 g whole body vibration was evaluated on speech production of words (Diagnostic Rhyme Test word list). Six subjects were recorded in a supine position using a specially-designed chair and vibration platform. Vocal warbling, pitch modulation, and other effects were observed in the spectrographic and Fo analyses.

Author: Begault, Durand
Affiliation: NASA Ames Research Center, Moffett Field, CA, USA
AES Convention: 127 (October 2009) Paper Number: 7820
Publication Date: October 1, 2009 Import into BibTeX
Subject: Audio Perception
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=15016

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 127Papers)   /127/7820.pdf

Start a discussion about this paper!