Hiss noise reduction method used for audio signals based on AAC bit-stream
A hiss noise reduction method used for audio signals based on AAC bit-stream in compressed domain was proposed.The input was AAC bit-stream derived from noisy audio signals,and the output was the enhanced AAC bit-stream used for decoder.First,Hiss noise was estimated by modified median absolute devi...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2013-05-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2013.05.003/ |
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| _version_ | 1841539845879496704 |
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| author | Feng DENG Chang-chun BAO Feng BAO |
| author_facet | Feng DENG Chang-chun BAO Feng BAO |
| author_sort | Feng DENG |
| collection | DOAJ |
| description | A hiss noise reduction method used for audio signals based on AAC bit-stream in compressed domain was proposed.The input was AAC bit-stream derived from noisy audio signals,and the output was the enhanced AAC bit-stream used for decoder.First,Hiss noise was estimated by modified median absolute deviation (MMAD).Second,the auditory masking threshold and the masking parameters were calculated by modified discrete Flourier transform (MDFT).Finally,the parametric soft-thresholding method was employed to obtain the enhanced AAC bit-stream which was used to get the enhanced audio signals at AAC decoder.The objective and subjective quality testing results indicate that the proposed algorithm can effectively remove the Hiss noise derived from AAC bit-stream of audio signals and ob-viously outperforms the existing hiss noise reduction methods. |
| format | Article |
| id | doaj-art-e0814d2c05a24b6baa7e631ddde549b1 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2013-05-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-e0814d2c05a24b6baa7e631ddde549b12025-01-14T06:35:12ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2013-05-0134203059671937Hiss noise reduction method used for audio signals based on AAC bit-streamFeng DENGChang-chun BAOFeng BAOA hiss noise reduction method used for audio signals based on AAC bit-stream in compressed domain was proposed.The input was AAC bit-stream derived from noisy audio signals,and the output was the enhanced AAC bit-stream used for decoder.First,Hiss noise was estimated by modified median absolute deviation (MMAD).Second,the auditory masking threshold and the masking parameters were calculated by modified discrete Flourier transform (MDFT).Finally,the parametric soft-thresholding method was employed to obtain the enhanced AAC bit-stream which was used to get the enhanced audio signals at AAC decoder.The objective and subjective quality testing results indicate that the proposed algorithm can effectively remove the Hiss noise derived from AAC bit-stream of audio signals and ob-viously outperforms the existing hiss noise reduction methods.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2013.05.003/AAC bit-streamHiss noisecompressed domainmodified discrete Fourier transformnoise reduction |
| spellingShingle | Feng DENG Chang-chun BAO Feng BAO Hiss noise reduction method used for audio signals based on AAC bit-stream Tongxin xuebao AAC bit-stream Hiss noise compressed domain modified discrete Fourier transform noise reduction |
| title | Hiss noise reduction method used for audio signals based on AAC bit-stream |
| title_full | Hiss noise reduction method used for audio signals based on AAC bit-stream |
| title_fullStr | Hiss noise reduction method used for audio signals based on AAC bit-stream |
| title_full_unstemmed | Hiss noise reduction method used for audio signals based on AAC bit-stream |
| title_short | Hiss noise reduction method used for audio signals based on AAC bit-stream |
| title_sort | hiss noise reduction method used for audio signals based on aac bit stream |
| topic | AAC bit-stream Hiss noise compressed domain modified discrete Fourier transform noise reduction |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2013.05.003/ |
| work_keys_str_mv | AT fengdeng hissnoisereductionmethodusedforaudiosignalsbasedonaacbitstream AT changchunbao hissnoisereductionmethodusedforaudiosignalsbasedonaacbitstream AT fengbao hissnoisereductionmethodusedforaudiosignalsbasedonaacbitstream |