A brief overview of speech enhancement with linear filtering

作者：Benesty Jacob; Christensen Mads Grae**oll; Jensen Jesper Rindom^*; Chen Jingdong

来源：EURASIP Journal on Advances in Signal Processing, 2014, 2014(1): 162.

DOI：10.1186/1687-6180-2014-162

• Noise reduction
• Speech enhancement
• Orthogonal decomposition
• Performance measures
• Optimal linear filtering
• Single-channel
• Multichannel
• Binaural
• Time domain
• Frequency domain

In this paper, we provide an overview of some recently introduced principles and ideas for speech enhancement with linear filtering and explore how these are related and how they can be used in various applications. This is done in a general framework where the speech enhancement problem is stated as a signal vector estimation problem, i.e., with a filter matrix, where the estimate is obtained by means of a matrix-vector product of the filter matrix and the noisy signal vector. In this framework, minimum distortion, minimum variance distortionless response (MVDR), tradeoff, maximum signal-to-noise ratio (SNR), and Wiener filters are derived from the conventional speech enhancement approach and the recently introduced orthogonal decomposition approach. For each of the filters, we derive their properties in terms of output SNR and speech distortion. We then demonstrate how the ideas can be applied to single- and multichannel noise reduction in both the time and frequency domains as well as binaural noise reduction.

• 出版日期2014-11-13
• 单位西北工业大学