Gammatone filterbank based energy masking algorithm for active hearing protection system

The difficulty of active hearing protection system is to mask the dangerous noise energy and retain the useful signal at the same time. Binary mask, which was an effective method to be used in speech segregation, was proposed to micro active hearing protection system. A new gammatone filterbank appr...

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Bibliographic Details
Published in2012 5th International Conference on Biomedical Engineering and Informatics pp. 537 - 540
Main Authors Yi Jiang, Qingchun Wang, Yuanyuan Zu, Pengfei Ren, Liyuan Liu, Hong Zhou
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2012
Subjects
binary mask
cochleagram
Gammatone filter bank
hearing protection
time-frequency(T-F) units
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Summary:The difficulty of active hearing protection system is to mask the dangerous noise energy and retain the useful signal at the same time. Binary mask, which was an effective method to be used in speech segregation, was proposed to micro active hearing protection system. A new gammatone filterbank approximation with less resource requirement was proposed to decompose the mixture signal into auditory segments for wearable system. The cue of energy was extracted in segments. Then energy based masking algorithm was used to remove the big noise energy segments. We found that both noise masking and signal reconstruction are effective.
ISBN:9781467311830
1467311839
DOI:10.1109/BMEI.2012.6513129