现代助听器的方向性麦克风技术和性能

张戌宝;吴毓祥;

1:瑞士Sonova助听器集团加拿大分厂Unitron研发部

2:美国lowa大学通讯科学障碍系听力老化研究实验室

摘要

<正>助听器输出声音的信噪比(signal-noise ratio,SNR)与言语理解度直接相关。在某些听音环境中,助听器的时域和频域降噪技术能改善输出SNR,但是,在多数情况下SNR并没有得到改善。因此,有关的研究人员、听力学家和助听器生产厂家对方向性麦克风(directional microphone,DM),也称麦克风波束形成,进行了多年的研究并取得了令人鼓舞的成就。Hamacher等[1]较早而全面地阐述了高档

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作者

张戌宝;吴毓祥;

参考文献

1 Hamacher V,Chalupper J,Eggers J,et al.Signal processing in high-end hearing aids:state of the art,challenges,and future trends[J].EURASIP Journal on ASP,2005,18:2915.

2 Yanz JL.Directional speech detector:A truly smart directional design[M].Eden Prairie:Starkey Press,2006.5~6.

3 Flynn MC.Maximizing the voice-to-noise ratio(VNR)via voice priority processing[J].Hearing Review,2004,11:54.

4 Chalupper J,Wu YH.Improving effectiveness of directional microphones with soft level directivity[J].Hearing Journal,2011,64:44.

5 Chalupper J,Wu YH,Weber J.New algorithm automatically adjusts directional system for special situations[J].Hearing Journal,2011,64:26.

6 Nyffeler M,Dechant S.Field study on user control of directional focus:benefits of hearing the facets of a full life[J].Hearing Review,2009,16:24.

7 Latzel M.Binaural VoiceStream Technology-intelligent binaural algorithms to improve speech understanding.https://www.phonakpro.com/content/dam/phonak/gc_hq/b2b/en/elearning/publications/insight/2012/Insight_Binaural_VoiceStream_Technology_028-0773.pdf.

8 Wu YH,Stangl E,Bentler RA,et al.The effect of hearing aid technologies on listening in an automobile[J].J Am Acad Audiol,2013,24:474.

9 Lindley G,Schum DJ,Fuglholt ML.Directionality and noise reduction in pediatric fittings[J].Hearing Review,2009,16:34.

10 StereoZoom.Binaural directionality.https://www.phonakpro.com/content/dam/phonak/b2b/C_M_tools/Library/background_stories/en/Phonak_Insight_StereoZoom210x280_GB_V1.00.pdf.

11 Bentler RA,Wu YH,Jeon J.Effectiveness of directional technology in open-canal hearing instruments[J].Hearing Journal,2006,59:40.

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