Short Communication: Pitch is Influenced by Spontaneous Otoacoustic Emissions

Köhler, W; Fritze, W.

doi:10.3109/00016489409126026

“…The reduction in ipsilateral FDLs near SOAEs is consistent with the trend observed by Norena et al (2002), and in conflict with the reports of Köhler and Fritze (1994) that monaural and binaural frequency discrimination, measured at 60 dB(A) and ±30 Hz around the SOAE, is poorer near the emission frequency. A direct comparison with the latter results is difficult since the authors did not show the data, and their experiments were performed at higher levels than in the present study.…”

Section: S6contrasting

confidence: 54%

“…A direct comparison with the latter results is difficult since the authors did not show the data, and their experiments were performed at higher levels than in the present study. However, if the pitch of pure tones in the close vicinity to SOAEs is shifted away from the SOAE, as shown by Köhler and Fritze (1994), one could actually expect an improvement in frequency discrimination at F 0 , due to the enhancement of the pitch separation between tones on each side of F 0 . Such an improvement was observed by Norena et al (2002) and confirmed by the present results.…”

Section: S6mentioning

confidence: 99%

Effects of spontaneous otoacoustic emissions on frequency discrimination

Hansen

¹

,

Santurette

²

,

Verhulst

³

2013

Proceedings of Meetings on Acoustics

0

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When an external tone is presented in proximity to the frequency of a spontaneous otoacoustic emission (SOAE), the SOAE typically synchronizes to the external tone, a phenomenon known as "entrainment". As the tone moves further away from the SOAE frequency, beating patterns between the SOAE and the pure tone occur (Long, Hear. Res. 119, 1998). This study investigated perceptual consequences of SOAE beating and entrainment on the frequency difference limen (FDL), which has been found to improve near an SOAE. SOAE entrainment patterns were obtained for six subjects with a strong SOAE in the ipsilateral ear and no SOAE in the corresponding frequency range of the contralateral ear. Hearing thresholds and FDLs were measured ipsi-and contralaterally for nine frequencies covering the entrainment and beating regions of the SOAE. FDLs systematically improved in the entrainment region, worsened when beating occurred, and improved again for frequencies further away from the SOAE. No improvement in FDL was found in any of the contralateral ears tested, suggesting that the effect is of peripheral, rather than of central, origin. The results contradict an earlier hypothesis stating that FDL performance near SOAE frequencies is governed by a central oversensitivity to the SOAE frequency.

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“…To evaluate the influence of SOAEs on pitch perception, two musically trained subjects performed an alternate binaural frequency balance test. 33 Tones were alternately presented to both ears with the ear showing an SOAE chosen as reference. The subject's task was to adjust the frequency of a tone in the contralateral ear (without the SOAE) until an equal pitch sensation was obtained in both ears.…”

Section: The Association Of Soaes and Suprathreshold Psychoacoustic Pmentioning

confidence: 99%

Otoacoustic Emissions in Relation to Auditory Perception: Beyond the Pure-Tone Audiogram

Smurzyński¹,

Harris²,

Probst³

2001

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Investigations of the relation of otoacoustic emissions (OAEs) and perception of auditory stimuli, other than the pure tones used in routine clinical audiometry, fall into two broad categories: (1) direct comparisons of OAE and perceptual measures that are intended to further our understanding of cochlear mechanisms and (2) explorations of the influence of more versus less active ears, as characterized by their OAEs, on psychoacoustic performance. Although both OAEs and perceptual measures derive, at least in part, from similar peripheral mechanisms, there are differences between them. It is likely that spontaneous OAEs (SOAEs) and/or strong evoked OAEs (EOAEs) influence auditory perception when measures are made at low levels, thus contributing to some of the variability reported in psychoacoustic studies. It is less likely that OAEs influence perception of complex signals or perceptual tasks involving signal levels greater than approximately 30 dB SPL.Learning Outcomes: Upon completion of this article, the reader will be able to (1) state the influences of SOAEs on auditory threshold microstructure; (2) describe the effects that OAEs have on perceptual measures made at low levels; and (3) list the effects that OAE profiles may have on auditory perception.

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“…However, it was ensured that all tones were presented at similar SLs via HT interpolation, and the lack of correlation between FDLs and HTs does not favor this explanation. Alternatively, the pitch shifts reported by Köhler and Fritze (1994), provided they only occur in the emission ear, may be responsible for this increase in performance.…”

Section: S6mentioning

confidence: 99%

“…Specifically, Köhler and Fritze (1994) found that the perceived pitch of pure tones close in frequency to an SOAE was shifted in the emission ear compared to the pitch of the same pure tones presented in the opposite ear containing no SOAE, with upward and downward pitch shifts above and below the SOAE frequency, respectively. The same authors reported having observed poorer frequency discrimination at and around the SOAE frequency than in frequency regions without SOAE.…”

Section: Introductionmentioning

confidence: 99%

Effects of spontaneous otoacoustic emissions on frequency discrimination

Hansen

¹

,

Santurette

²

,

Verhulst

³

2013

The Journal of the Acoustical Society of America

0

View full text Add to dashboard Cite

When an external tone is presented in proximity to the frequency of a spontaneous otoacoustic emission (SOAE), the SOAE typically synchronizes to the external tone, a phenomenon known as "entrainment". As the tone moves further away from the SOAE frequency, beating patterns between the SOAE and the pure tone occur (Long, Hear. Res. 119, 1998). This study investigated perceptual consequences of SOAE beating and entrainment on the frequency difference limen (FDL), which has been found to improve near an SOAE. SOAE entrainment patterns were obtained for six subjects with a strong SOAE in the ipsilateral ear and no SOAE in the corresponding frequency range of the contralateral ear. Hearing thresholds and FDLs were measured ipsi-and contralaterally for nine frequencies covering the entrainment and beating regions of the SOAE. FDLs systematically improved in the entrainment region, worsened when beating occurred, and improved again for frequencies further away from the SOAE. No improvement in FDL was found in any of the contralateral ears tested, suggesting that the effect is of peripheral, rather than of central, origin. The results contradict an earlier hypothesis stating that FDL performance near SOAE frequencies is governed by a central oversensitivity to the SOAE frequency.

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Short Communication: Pitch is Influenced by Spontaneous Otoacoustic Emissions

Cited by 8 publications

References 5 publications

Effects of spontaneous otoacoustic emissions on frequency discrimination

Effects of spontaneous otoacoustic emissions on frequency discrimination

Otoacoustic Emissions in Relation to Auditory Perception: Beyond the Pure-Tone Audiogram

Effects of spontaneous otoacoustic emissions on frequency discrimination

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