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Literature DB >> 21361410

Effect of bandpass filtering on melodic contour identification by cochlear implant users.

Abstract

Melodic contour identification was measured in cochlear implant (CI) and normal-hearing (NH) subjects for piano samples processed by four bandpass filters: low (310-620 Hz), middle (620-2480 Hz), high (2480-4960 Hz), and full (310-4960 Hz). NH performance was near-perfect for all filter ranges and much higher than CI performance. The best mean CI performance was with the middle frequency range; performance was much better for some CI subjects with the middle rather than the full filter. These results suggest that acoustic filtering may reduce potential mismatches between fundamental frequencies and harmonic components thereby improving CI users' melodic pitch perception.

Mesh：

Year: 2011 PMID： 21361410 PMCID： PMC3045410 DOI： 10.1121/1.3531708

Source DB: PubMed Journal: J Acoust Soc Am ISSN： 0001-4966 Impact factor: 1.840

10 in total

1. Speech perception as a function of electrical stimulation rate: using the Nucleus 24 cochlear implant system.

Authors: A E Vandali; L A Whitford; K L Plant; G M Clark
Journal: Ear Hear Date: 2000-12 Impact factor: 3.570

2. Correct tonotopic representation is necessary for complex pitch perception.

Authors: Andrew J Oxenham; Joshua G W Bernstein; Hector Penagos
Journal: Proc Natl Acad Sci U S A Date: 2004-01-12 Impact factor: 11.205

Review 3. The number of spectral channels required for speech recognition depends on the difficulty of the listening situation.

Authors: Robert V Shannon; Qian-Jie Fu; John Galvin
Journal: Acta Otolaryngol Suppl Date: 2004-05

2 in total

Review 1. Auditory implant research at the House Ear Institute 1989-2013.

Authors: Robert V Shannon
Journal: Hear Res Date: 2014-11-17 Impact factor: 3.208

2. Contributions of electric and acoustic hearing to bimodal speech and music perception.

Authors: Joseph D Crew; John J Galvin; David M Landsberger; Qian-Jie Fu
Journal: PLoS One Date: 2015-03-19 Impact factor: 3.240

2 in total

Effect of bandpass filtering on melodic contour identification by cochlear implant users.

1. Speech perception as a function of electrical stimulation rate: using the Nucleus 24 cochlear implant system.

2. Correct tonotopic representation is necessary for complex pitch perception.

Review 3. The number of spectral channels required for speech recognition depends on the difficulty of the listening situation.

4. Better place-coding of the fundamental frequency in cochlear implants.

5. Improved music perception with explicit pitch coding in cochlear implants.

6. Effect of filter spacing on melody recognition: acoustic and electric hearing.

7. Effect of a competing instrument on melodic contour identification by cochlear implant users.

8. Multichannel electrical stimulation of the auditory nerve in man. I. Basic psychophysics.

9. Melodic contour identification by cochlear implant listeners.

10. Effect of instrument timbre on melodic contour identification by cochlear implant users.

Review 1. Auditory implant research at the House Ear Institute 1989-2013.

2. Contributions of electric and acoustic hearing to bimodal speech and music perception.