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Speech Enhancement Using Combination of Digital Audio effects with Kalman Filter

机译:使用Kalman滤波器的数字音频效果的组合来增强语音增强

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The term "Quality of Speech" in Speech Enhancement techniques is associated with Clarity and Intelligibility. Till now due to the variable nature and characteristics of noise with time and process to process, Speech Enhancement is a difficult problem in Noisy environment. In this paper, we proposed a method to improve the quality of speech based on combination of Digital Audio Effects with Improved Adaptive Kalman Filter when only corrupted speech is available. In this approach to enhance the Speech content in the Noisy speech signal, Digital audio effects are used. A Digital Expander generates an audio effect which operates on a low signal level and create more likely sound characteristics. And further, noise is removed by Auto Regressive modeled improved adaptive Kalman filter. The performance of the proposed method with additive color noise is found to be better compared to other spectral subtraction, wiener and Kalman filter methods in terms of Signal-to-Noise ratio and intelligibility.
机译:语音增强技术中的“语音质量”术语与清晰度和可懂度有关。到目前为止由于噪音的变性和特点随时间和过程来处理,语音增强是嘈杂环境中的一个难题。在本文中,我们提出了一种基于数字音频效应的组合来提高语音质量的方法,当时只有损坏的语音,可以使用改进的自适应卡尔曼滤波器。在这种方法中,以增强嘈杂的语音信号中的语音内容,使用数字音频效果。数字扩展器产生音频效果,可在低信号电平上运行,并产生更可能的声音特性。此外,通过自动回归建模的改进的自适应卡尔曼滤波器去除噪声。在信噪比比和可懂度方面,发现所提出的具有添加性颜色噪声的方法具有添加色谱噪声的性能,与其他光谱减法,维纳和卡尔曼滤波方法更好。

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