Effect of F2 Intensity on Identity of /u/ in Degraded Listening Conditions

Hedrick, Mark S.; Nabelek, Anna K.
October 2004
Journal of Speech, Language & Hearing Research;Oct2004, Vol. 47 Issue 5, p1012
Academic Journal
The current study investigated the influence of the second formant (F2) intensity on vowel labeling along a /u/-/i/ continuum. Twenty-two listeners with normalhearing (NH) sensitivity and 14 listeners with sensorineural hearing impairment (HI) were initially presented 2 stimuli for which the F2 intensity differed by 20 dB. The listeners were asked to label the 2 stimuli categorically as /u/ or /i/. After passing this criterion test, listeners were presented 9 stimuli whose F2 intensity varied within the 20-dB range. The 9 stimuli were evaluated in 3 listening conditions: in quiet, in the presence of a continuous speech spectrum noise (0-dB signal-to-noise ratio), and in the presence of reverberation ( T = 1.0 s). The intensity manipulation altered the vowel labeling of NH listeners and yielded a differential effect in noise versus reverberation. Only 5 of the HI listeners were able to pass the criterion test, and of these 5, only 2 were able to label the 9 stimuli categorically. Results from HI listeners suggest problems in categorizing spectral shape.


Related Articles

  • Contribution of High-Frequency Information to the Acceptance of Background Noise in Listeners With Normal and Impaired Hearing. Plyler, Patrick N.; Madix, Steven G.; Thelin, James W.; Johnston, Kristie W. // American Journal of Audiology;Dec2007, Vol. 16 Issue 2, p149 

    Purpose: To determine whether information beyond 2.0 kHz affected the acceptance of background noise in listeners with normal and/or impaired hearing. Method: Speech stimuli (Arizona Travelogue) and multitalker babble were low-pass filtered at cutoff frequencies of 2.0, 4.0, and 6.0 kHz and...

  • Spectral Contribution to the Benefit From Spatial Separation of Speech and Noise. Dubno, Judy R.; Ahlstrom, Jayne B.; Horwitz, Amy R. // Journal of Speech, Language & Hearing Research;Dec2002, Vol. 45 Issue 6, p1297 

    Presents information on a study that assessed the use of interaural difference cues that underlie the spatial separation benefit for speech recognition in noise by younger and older adults with normal hearing and older adults with hearing loss. Research methods; Results and discussion on the...

  • Slope of PI Function Is Not 10%-per-dB in Noise for All Noises and for All Patients. CHASIN, MARSHALL // Hearing Review;Oct2013, Vol. 20 Issue 11, p12 

    This article discusses how directional hearing aid microphones and assistive listening devices have benefited people with hearing loss. The author reveals that such devices were able to help some patients communicate better in a difficult listening situation. The author reveals, however, that...

  • The Effects of Expansion Time Constants on the Objective Performance of Hearing Instrument Users. Plyler, Patrick N.; Hill, Ashley Blair; Trine, Timothy D. // Journal of the American Academy of Audiology;Sep2005, Vol. 16 Issue 8, p614 

    The present study investigated the effects of expansion time constants on the objective performance of 20 hearing instrument users fitted binaurally with digital in-the-ear products. Objective performance was evaluated in quiet using the Connected Speech Test and in noise using the Hearing in...

  • They Say "I Can't Hear in Noise," We Say "Say the Word Base". Tecca, John E. // Audiology Today;Nov/Dec2015, Vol. 27 Issue 6, p10 

    No abstract available.

  • LETTER TO THE EDITOR. Lindley, George // Audiology Today;Nov/Dec2015, Vol. 27 Issue 6, p13 

    No abstract available.

  • Is There a Hearing Aid for the Thinking Person? Hafter, Ervin R. // Journal of the American Academy of Audiology;Oct2010, Vol. 21 Issue 9, p594 

    Background: The history of auditory prosthesis has generally concentrated on bottom-up processing, that is, on audibility. However, a growing interest in top-down processing has focused on correlations between success with a hearing aid and such higher order processing as the patient's...

  • Optimizing FM Systems. Huong Nguyen; Bentler, Ruth // ASHA Leader;10/11/2011, Vol. 16 Issue 12, p5 

    The article focuses on the optimization of frequency modulation (FM) system advantages for people with speech, language, or hearing disability, by verifying and following up device function. It mentions the FM optimization guidelines recommending 10 decibels (dB) of higher FM-microphone inputs...

  • Music to your ears = hearing loss.  // Good Health & Medicine;Sep2008, p13 

    The article presents information on hearing loss. The main cause of hearing loss in Australia is exposure to loud noise. However, 60% of people listening to music through headphones play it at an unsafe volume. Australian Hearing recommends setting the volume of MP3 player at a level that allows...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics