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| Content Provider | ACM Digital Library |
|---|---|
| Author | Liu, Chih-Wei Yang, Cheng-Yen Jou, Shyh-Jye |
| Copyright Year | 2016 |
| Abstract | Recently, emerging mobile computing requires the high integration of hearing aids into a single system-on-chip. Modern hearing aid systems include a frequency decomposer, noise reduction, feedback cancellation, auditory compensation, and intelligent adaptation. The majority of existing works concentrated on improving the performance and efficiency on a single-signal processing block or one-sided effect. These works lacked comprehensive discussions on system-wide aspects regarding the overall impacts. To design an optimal hearing aid system, frequency decomposers, or the filter banks that dominate in hearing aid systems, are the first priority. We propose a systematic relaxation of the ANSI S1.11 specification and its design procedure for filter banks. The proposed design procedure overcomes the drawbacks of previous works and changes the five performance indices of the filter bank: delay, complexity, sub-band rate reduction, ripples of synthesized output, and prescription matchingerrors. These performance indices help system or algorithm designers in selecting a beneficial system-relaxed filter bank to achieve optimal hearing aids. The proposed multirate filter bank using the resampling method provides an efficient, low complexity, and delay-constrained computing architecture. Finally, seven design cases are used to demonstrate the proposed method, and comprehensive discussions of the five performance indices are presented. |
| Starting Page | 1380 |
| Ending Page | 1392 |
| Page Count | 13 |
| File Format | |
| ISSN | 23299290 |
| e-ISSN | 23299304 |
| Volume Number | 24 |
| Issue Number | 8 |
| Journal | IEEE/ACM Transactions on Audio, Speech and Language Processing (TASLP) |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2016-08-01 |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | ANSI S1.11 NAL-NL1 Hearing aids Multirate filter bank Prescription matching Quasi-ANSI |
| Content Type | Text |
| Resource Type | Article |
| Subject | Instrumentation Computational Mathematics Signal Processing Electrical and Electronic Engineering Acoustics and Ultrasonics Speech and Hearing Media Technology |
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