助听器中的两种新降噪技术

张戌宝;

1:Sonova Unitron

2:Oticon Canada

摘要

<正>近年来,心理听力学研究指出[1],无论是听力正常者还是听力受损者,在噪声环境中理解语音时都会引起瞳孔扩大,严重时会造成他们放弃听音的愿望。近二十多年来,数字助听器的单麦克风降噪技术和双麦克风波束形成技术使其输出噪声控制在可接受的范围,给听力损失患者带来了预期的益处[2,3]。由于助听器输入信号的特殊性,即无论在频域还是空域,目标信号和干扰噪声常常是混迭在一起的,加之体积很小,使得在军事通讯中行之有效的降噪技术难于直接用于助听器中,给研发

关键词

基金项目(Foundation):

作者

张戌宝;

参考文献

1 Le Goff N,Wendt D,Lunner T,et al.Opn clinical evidence.White Paper,2016,Oticon A/S.https://www.oticon.global/-/media/oticon/main/pdf/master/whitepaper/22570uk_wp_opn-clinical-evidence_single.pdf?la=en & hash=C8972AF3A56CB291998 D6E1F5AF8B4955BE463FB.

2 张戌宝.现代助听器的降噪技术(单麦克风类)和性能[J].听力学及言语疾病杂志,2014,22:514.

3 张戌宝,吴毓祥.现代助听器的方向性麦克风技术和性能[J].听力学及言语疾病杂志,2015,23:301.

4 Latzel M.Binaural VoiceStream TechnologyTM - Intelligent binaural algorithms to improve speech understanding.Insight,Oct.2012,V1.00,Phonak AG.https://www.phonakpro.com/content/dam/phonakpro/gc_hq/en/resources/evidence/white_paper/documents/Insight_Binaural_VoiceStream_Technology_028-0773.pdf.

5 Mejia J,Beach E,McLelland M,et al.Loss of speech perception in noise - causes and compensation[J].International Symposium on Auditory and Audiological Research (ISAAR),2015,5:205.

6 Chalupper J,Wu YH.Improving effectiveness of directional microphones with Soft Level Directivity[J].Hearing Journal,2011,66:64.

7 Le Goff N,Jensen J,Pedersen MS,et al.An introduction to OpenSound NavigatorTM.White Paper,2016,Oticon A/S.https://www.oticon.com/-/media/oticon-us/main/download-center/white-papers/15555-9950—opnsound-navigator.pdf.

8 Vorobyov SA.Principles of minimum variance robust adaptive beamforming design[J].Signal Processing,2013,93:3264.

9 Kjems U,Jensen J.Maximum Likelihood based noise covariance matrix estimation for multi-microphone speech enhancement[J].IEEE Explore,2012,08:295.

10 Zhang X.Polar plots of a directional microphone with real-world sounds and its spectrum distortion[J].EPH-International Journal of Science and Engineering,2017,3:1.

11 Zhang X.Benefits and limitations of common directional microphones in real-world sounds[J].Clinical Medicine Research,2018,7:103.

12 Voice Samples-LAMP Words for Life.https://aacapps.com/lamp/voices.

13 Traffic Wav Mp3 Sound Effects.http://www.pachd.com/traffic-ambience.html.

14 Weile JN,Bach R.The VeloxTM platform.Tech Paper,2016,Oticon A/S.https://www.oticon.global/professionals/training-and-fitting/training/e-learning/velox-platform.

本文信息

PDF(1309K)

本文关键词相关文章

本文作者相关文章

张戌宝