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Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears. / Plack, Christopher J.; Oxenham, Andrew J.; Simonson, Andrea M. et al.
In: Journal of the Acoustical Society of America, Vol. 123, No. 6, 06.2008, p. 4321-4330.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Plack, CJ, Oxenham, AJ, Simonson, AM, O'Hanlon, CG, Drga, V & Arifianto, D 2008, 'Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears', Journal of the Acoustical Society of America, vol. 123, no. 6, pp. 4321-4330. https://doi.org/10.1121/1.2908297

APA

Plack, C. J., Oxenham, A. J., Simonson, A. M., O'Hanlon, C. G., Drga, V., & Arifianto, D. (2008). Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears. Journal of the Acoustical Society of America, 123(6), 4321-4330. https://doi.org/10.1121/1.2908297

Vancouver

Plack CJ, Oxenham AJ, Simonson AM, O'Hanlon CG, Drga V, Arifianto D. Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears. Journal of the Acoustical Society of America. 2008 Jun;123(6):4321-4330. doi: 10.1121/1.2908297

Author

Plack, Christopher J. ; Oxenham, Andrew J. ; Simonson, Andrea M. et al. / Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears. In: Journal of the Acoustical Society of America. 2008 ; Vol. 123, No. 6. pp. 4321-4330.

Bibtex

@article{a83fd586dac3463e84be02f2635fd637,
title = "Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears",
abstract = "Auditory compression was estimated at 250 and 4000 Hz by using the additivity of forward masking technique, which measures the effects on signal threshold of combining two temporally nonoverlapping forward maskers. The increase in threshold in the combined-masker condition compared to the individual-masker conditions can be used to estimate compression. The signal was a 250 or 4000 Hz tone burst and the maskers (M1 and M2) were bands of noise. Signal thresholds were measured in the presence of M I and M2 alone and combined for a range of masker levels. The results were used to derive response functions at each frequency. The procedure was conducted with normal-hearing and hearing-impaired listeners. The results suggest that the response function in normal ears is similar at 250 and 4000 Hz with a mid level compression exponent of about 0.2. However, compression extends over a smaller range of levels at 250 Hz. The results confirm previous estimates of compression using temporal masking curves (TMCs) without assuming a linear off-frequency reference as in the TMC procedure. The impaired ears generally showed less compression. Importantly, some impaired ears showed a linear response at 250 Hz, providing a further indication that low-frequency compression originates in the cochlea. ",
keywords = "BASILAR-MEMBRANE NONLINEARITY, SENSORINEURAL HEARING-LOSS, INPUT-OUTPUT FUNCTIONS, GUINEA-PIG COCHLEA, CHINCHILLA COCHLEA, PERIPHERAL COMPRESSION, TEMPORAL SUMMATION, AUDITORY COMPRESSION, IN-VIVO, LISTENERS",
author = "Plack, {Christopher J.} and Oxenham, {Andrew J.} and Simonson, {Andrea M.} and O'Hanlon, {Catherine G.} and Vit Drga and Dhany Arifianto",
year = "2008",
month = jun,
doi = "10.1121/1.2908297",
language = "English",
volume = "123",
pages = "4321--4330",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "6",

}

RIS

TY - JOUR

T1 - Estimates of compression at low and high frequencies using masking additivity in normal and impaired ears

AU - Plack, Christopher J.

AU - Oxenham, Andrew J.

AU - Simonson, Andrea M.

AU - O'Hanlon, Catherine G.

AU - Drga, Vit

AU - Arifianto, Dhany

PY - 2008/6

Y1 - 2008/6

N2 - Auditory compression was estimated at 250 and 4000 Hz by using the additivity of forward masking technique, which measures the effects on signal threshold of combining two temporally nonoverlapping forward maskers. The increase in threshold in the combined-masker condition compared to the individual-masker conditions can be used to estimate compression. The signal was a 250 or 4000 Hz tone burst and the maskers (M1 and M2) were bands of noise. Signal thresholds were measured in the presence of M I and M2 alone and combined for a range of masker levels. The results were used to derive response functions at each frequency. The procedure was conducted with normal-hearing and hearing-impaired listeners. The results suggest that the response function in normal ears is similar at 250 and 4000 Hz with a mid level compression exponent of about 0.2. However, compression extends over a smaller range of levels at 250 Hz. The results confirm previous estimates of compression using temporal masking curves (TMCs) without assuming a linear off-frequency reference as in the TMC procedure. The impaired ears generally showed less compression. Importantly, some impaired ears showed a linear response at 250 Hz, providing a further indication that low-frequency compression originates in the cochlea. 

AB - Auditory compression was estimated at 250 and 4000 Hz by using the additivity of forward masking technique, which measures the effects on signal threshold of combining two temporally nonoverlapping forward maskers. The increase in threshold in the combined-masker condition compared to the individual-masker conditions can be used to estimate compression. The signal was a 250 or 4000 Hz tone burst and the maskers (M1 and M2) were bands of noise. Signal thresholds were measured in the presence of M I and M2 alone and combined for a range of masker levels. The results were used to derive response functions at each frequency. The procedure was conducted with normal-hearing and hearing-impaired listeners. The results suggest that the response function in normal ears is similar at 250 and 4000 Hz with a mid level compression exponent of about 0.2. However, compression extends over a smaller range of levels at 250 Hz. The results confirm previous estimates of compression using temporal masking curves (TMCs) without assuming a linear off-frequency reference as in the TMC procedure. The impaired ears generally showed less compression. Importantly, some impaired ears showed a linear response at 250 Hz, providing a further indication that low-frequency compression originates in the cochlea. 

KW - BASILAR-MEMBRANE NONLINEARITY

KW - SENSORINEURAL HEARING-LOSS

KW - INPUT-OUTPUT FUNCTIONS

KW - GUINEA-PIG COCHLEA

KW - CHINCHILLA COCHLEA

KW - PERIPHERAL COMPRESSION

KW - TEMPORAL SUMMATION

KW - AUDITORY COMPRESSION

KW - IN-VIVO

KW - LISTENERS

U2 - 10.1121/1.2908297

DO - 10.1121/1.2908297

M3 - Journal article

VL - 123

SP - 4321

EP - 4330

JO - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 6

ER -