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Intelligibility enhancement of bone conducted speech by an analysis-synthesis method

机译：通过分析综合方法进行骨骼的可懂度提高讲话

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This paper proposes an intelligibility enhancement technique for bone conducted (BC) speech without exploiting any spectral characteristics of normal air conducted (AC) speech. Due to its robustness against ambient noise, BC speech has recently received a lot of attention. Particularly, it has proven to be very suitable for military, rescue and security operations. However, BC speech suffers from lower intelligibility for it lacks higher frequency components. This appears as a tradeoff for human-machine communication like speech recognition and understanding. The proposed technique enhances the weak higher frequency components by an analysis-synthesis method based on linear prediction. Preliminary listening test and spectrograms produced from the synthesized BC speech demonstrates significant intelligibility enhancement when compared with the original BC speech.
机译：本文提出了一种骨骼进行的可明智的增强技术（BC）语音而不利用正常空气的任何光谱特性（AC）语音。由于其对环境噪声的鲁棒性，BC演讲最近受到了很多关注。特别是，它已被证明是适合军事，救援和安全行动。但是，BC语音缺乏较低的频率分量。这表现为人机通信的权衡，如语音识别和理解。基于线性预测的分析合成方法，所提出的技术通过分析合成方法提高了弱较高的频率分量。与原始BC语音相比，由合成的BC演讲产生的初步听力测试和谱图显示出显着的可懂度增强。

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