Effect of fast AGC on cochlear implant speech intelligibility

Phyu P. Khing; Eliathamby Ambikairajah; Brett A. Swanson

doi:10.1109/ICASSP.2011.5946396

Effect of fast AGC on cochlear implant speech intelligibility

Phyu P. Khing^*, Eliathamby Ambikairajah, Brett A. Swanson

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

2 Citations (Scopus)

Abstract

This study investigated the effect of fast-acting Automatic Gain Control (AGC) on the speech intelligibility of cochlear implant users as a function of presentation level. Both low and high signal-to-noise ratio conditions were investigated. The AGC substantially reduced the amount of clipping, but did not give consistent improvements in intelligibility. With no AGC, and high signal-to-noise ratio, speech scores were not significantly degraded until more than 25% of stimulation pulses were affected by clipping.

Original language	English
Title of host publication	ICASSP 2011
Subtitle of host publication	Proceedings of the 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	285-288
Number of pages	4
ISBN (Electronic)	9781457705397, 9781457705373
ISBN (Print)	9781457705380
DOIs	https://doi.org/10.1109/ICASSP.2011.5946396
Publication status	Published - 2011
Externally published	Yes
Event	36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Prague, Czech Republic Duration: 22 May 2011 → 27 May 2011

Other

Other	36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Country/Territory	Czech Republic
City	Prague
Period	22/05/11 → 27/05/11

Keywords

Automatic Gain Control
cochlear implant
compression
speech intelligibility

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10.1109/ICASSP.2011.5946396

Cite this

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title = "Effect of fast AGC on cochlear implant speech intelligibility",

abstract = "This study investigated the effect of fast-acting Automatic Gain Control (AGC) on the speech intelligibility of cochlear implant users as a function of presentation level. Both low and high signal-to-noise ratio conditions were investigated. The AGC substantially reduced the amount of clipping, but did not give consistent improvements in intelligibility. With no AGC, and high signal-to-noise ratio, speech scores were not significantly degraded until more than 25% of stimulation pulses were affected by clipping.",

keywords = "Automatic Gain Control, cochlear implant, compression, speech intelligibility",

author = "Khing, {Phyu P.} and Eliathamby Ambikairajah and Swanson, {Brett A.}",

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doi = "10.1109/ICASSP.2011.5946396",

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pages = "285--288",

booktitle = "ICASSP 2011",

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Khing, PP, Ambikairajah, E & Swanson, BA 2011, Effect of fast AGC on cochlear implant speech intelligibility. in ICASSP 2011: Proceedings of the 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 285-288, 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011, Prague, Czech Republic, 22/05/11. https://doi.org/10.1109/ICASSP.2011.5946396

Effect of fast AGC on cochlear implant speech intelligibility. / Khing, Phyu P.; Ambikairajah, Eliathamby; Swanson, Brett A.
ICASSP 2011: Proceedings of the 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2011. p. 285-288.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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AU - Ambikairajah, Eliathamby

AU - Swanson, Brett A.

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N2 - This study investigated the effect of fast-acting Automatic Gain Control (AGC) on the speech intelligibility of cochlear implant users as a function of presentation level. Both low and high signal-to-noise ratio conditions were investigated. The AGC substantially reduced the amount of clipping, but did not give consistent improvements in intelligibility. With no AGC, and high signal-to-noise ratio, speech scores were not significantly degraded until more than 25% of stimulation pulses were affected by clipping.

AB - This study investigated the effect of fast-acting Automatic Gain Control (AGC) on the speech intelligibility of cochlear implant users as a function of presentation level. Both low and high signal-to-noise ratio conditions were investigated. The AGC substantially reduced the amount of clipping, but did not give consistent improvements in intelligibility. With no AGC, and high signal-to-noise ratio, speech scores were not significantly degraded until more than 25% of stimulation pulses were affected by clipping.

KW - Automatic Gain Control

KW - cochlear implant

KW - compression

KW - speech intelligibility

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DO - 10.1109/ICASSP.2011.5946396

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SP - 285

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BT - ICASSP 2011

PB - Institute of Electrical and Electronics Engineers (IEEE)

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ER -

Effect of fast AGC on cochlear implant speech intelligibility

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