An Auditory-Masking-Threshold-Based Noise Suppression Algorithm GMMSE-AMT[ERB] for Listeners with Sensorineural Hearing Loss
| Autor: | Jessica Rossi-Katz, John H. L. Hansen, Kathryn H. Arehart, Ajay Natarajan |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Masking (art)
Hearing aid hearing impaired auditory masking threshold generalized minimum mean square estimation Hearing loss Computer science Speech recognition Noise reduction medicine.medical_treatment lcsh:TK7800-8360 Intelligibility (communication) lcsh:Telecommunication equivalent rectangular bandwidth Signal-to-noise ratio lcsh:TK5101-6720 medicine Auditory system Electrical and Electronic Engineering Sound quality Auditory masking Minimum mean square error Equivalent rectangular bandwidth lcsh:Electronics medicine.disease medicine.anatomical_structure Hardware and Architecture normal hearing Signal Processing Sensorineural hearing loss Hearing impaired medicine.symptom Algorithm |
| Zdroj: | EURASIP Journal on Advances in Signal Processing, Vol 2005, Iss 18, Pp 2938-2953 (2005) EURASIP Journal on Advances in Signal Processing, Vol 2005, Iss 18, p 678405 (2005) |
| ISSN: | 1687-6180 |
| DOI: | 10.1155/asp.2005.2938 |
| Popis: | This study describes a new noise suppression scheme for hearing aid applications based on the auditory masking threshold (AMT) in conjunction with a modified generalized minimum mean square error estimator (GMMSE) for individual subjects with hearing loss. The representation of cochlear frequency resolution is achieved in terms of auditory filter equivalent rectangular bandwidths (ERBs). Estimation of AMT and spreading functions for masking are implemented in two ways: with normal auditory thresholds and normal auditory filter bandwidths (GMMSE-AMT[ERB]-NH) and with elevated thresholds and broader auditory filters characteristic of cochlear hearing loss (GMMSE-AMT[ERB]-HI). Evaluation is performed using speech corpora with objective quality measures (segmental SNR, Itakura-Saito), along with formal listener evaluations of speech quality rating and intelligibility. While no measurable changes in intelligibility occurred, evaluations showed quality improvement with both algorithm implementations. However, the customized formulation based on individual hearing losses was similar in performance to the formulation based on the normal auditory system. |
| Databáze: | OpenAIRE |
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