Clinical measures of static and dynamic spectral-pattern discrimination in relationship to speech perception

Forfattere

  • Stanley Sheft Department of Communication Disorders & Sciences, Rush University Medical Center, 600 South Paulina Street, suite 1012, Chicago, IL 60612 USA
  • Robert Risley Department of Communication Disorders & Sciences, Rush University Medical Center, 600 South Paulina Street, suite 1012, Chicago, IL 60612 USA
  • Valeriy Shafiro Department of Communication Disorders & Sciences, Rush University Medical Center, 600 South Paulina Street, suite 1012, Chicago, IL 60612 USA

Resumé

Two experiments evaluated discrimination ability for both static and dynamic spectral patterns. The static conditions measured the ability to detect a change in the phase of a low-rate sinusoidal spectral ripple of wideband noise. The dynamic condition determined the signal-to-noise ratio (SNR) needed to discriminate 1-kHz pure tones frequency modulated by different 5-Hz lowpass noise samples drawn from the same underlying noise distribution so that discrimination was based on the temporal pattern of fluctuation. Both procedures used a modified descending method of limits with test stimuli recorded on a CD for clinic use. Results from the first experiment showed a significant relationship of both metrics to masked speech intelligibility. Using only the static procedure, the second experiment evaluated the role of fine-structure information in the perception of masked speech through vocoding of psychoacoustic and speech stimuli. In this case, results showed significant relationship only when the psychoacoustic and speech stimuli were either both vocoded or both unprocessed, consistent with involvement of stimulus fine structure in speech perception at low SNRs. Overall, results from both experiments support clinical utility of the procedures in the context of speech processing ability.

Referencer

Drennan, W.R., Longnion, J.K., Ruffin, C., and Rubinstein, J.T. (2008). “Discrimination of Schroeder-phase harmonic complexes by normal-hearing and cochlear-implant listeners” J. Assoc. Res. Otolaryngol., 9, 138-149.

Gnansia, D., Péan, V., Meyer, B., and Lorenzi, C. (2009). “Effects of spectral smearing and temporal fine structure degradation on speech masking release” J. Acoust. Soc. Am., 125, 4023-4033.

Hopkins, K., and Moore, B.C.J. (2011). “The effects of age and cochlear hearing loss on temporal fine structure sensitivity, frequency selectivity, and speech reception in noise” J. Acoust. Soc. Am., 130, 334-349.

Kidd, G.R., Watson, C.S., and Gygi, B. (2007). “Individual differences in auditory abilities” J. Acoust. Soc. Am., 122, 418-435.

Litvak, L.M., Spahr, A.J., Saoji, A.A., Fridman, G.Y. (2007). “Relationship between perception of spectral ripple and speech recognition in cochlear implant and vocoder listeners” J. Acoust. Soc. Am., 122, 982-991.

Sheft, S., Shafiro, V., Lorenzi, C., McMullen, R., and Farrell, C. (2011). “Effects of age and hearing loss on the relationship between discrimination of stochastic frequency modulation and speech perception” Ear Hear. (submitted).

Won, J.H., Clinard, C.G., Kwon, S., Dasika, V.K., Nie, K., Drennan, W.R., Tremblay, K.L., Rubinstein, J.T. (2011). “Relationship between behavioral and physiological spectral-ripple discrimination” J. Assoc. Res. Otolaryngol., 12, 375-393.

Yderligere filer

Publiceret

2011-12-15

Citation/Eksport

Sheft, S., Risley, R., & Shafiro, V. (2011). Clinical measures of static and dynamic spectral-pattern discrimination in relationship to speech perception. Proceedings of the International Symposium on Auditory and Audiological Research, 3, 481–488. Hentet fra https://proceedings.isaar.eu/index.php/isaarproc/article/view/2011-56

Nummer

Årg. 3 (2011): Speech Perception and Auditory Disorders

Sektion

2011/4. Recent concepts in hearing-instrument processing and fitting

Licens

Authors who publish with this journal agree to the following terms:

a. Authors retain copyright* and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

*From the 2017 issue onward. The Danavox Jubilee Foundation owns the copyright of all articles published in the 1969-2015 issues. However, authors are still allowed to share the work with an acknowledgement of the work's authorship and initial publication in this journal.