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中文核心期刊

提高汉语清晰度的语音处理

AMELIORATION OF THE CHINESE ARTICULATION BY SPEECH PROCESSING

  • 摘要: 根据语音不同频区在清晰度中所起的作用及感音性聋患者听力改变的多样性,作者设计和试制了一台具有滤波、动态范围压缩及频率补偿等功能的TB—1型听力补偿测定仪。用它可以选定不同患者所需的最佳听力补偿方式,为配制专用助听器提供依据。选择该仪器提供的语音处理,可使正常人在信噪比为0dB时的语音清晰度从66.6%提高到87.4%;使感音性聋患者在安静环境、信噪比为6dB和0dB时的语音清晰度分别从42.1%提高到66.0%,从45.8%提高到78.0%及从40.3%提高到71.0%。文章讨论了该仪器的语音处理方式及其应用方面的一些问题。

     

    Abstract: In view of different contribution to speech articulation by different frequency bands in the energy spectrum and of the variability of hearing loss in sensorineuro-deaf patients a hearing compensation apparatus type TB-1 was designed, capable of giving aiming speech processing. By selective combination of filtering, dynamic range compression and frequency compensation with appropriate parameters, the best prescription of hearing compensation can be determined which is useful in design hearing aids to match individual patient. This apparatus can increase arti-curation score from 66.6% to 87.4% for normal-hearing subjects at signal/noise of 0dB and from 42.1% to 66.0% from 45.8% to 78.0% and from 40.3% to 71.0% for sensorineuro-deaf patients at quiescence, at S/N of 6dB and at S/N of 0dB, respectively. Principles of speech processing of the apparatus and its application are discussed.

     

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