An investigation of time delay estimation in room acoustic environment using magnitude ratio

作者：Hu Jwu Sheng; Yang Chia Hsin^*; Liu Wei Han

来源：Signal Processing, 2010, 90(1): 378-384.

DOI：10.1016/j.sigpro.2009.06.009

• Time delay estimation
• Magnitude ratio

This paper investigates the relation between the nonstationary sound source and the frequency domain magnitude ratio of two microphones based on short-term frequency analysis. The fluctuation level of nonstationary sound sources is modeled by the exponent of polynomials from the concept of moving pole model. According to this model, the sufficient condition for utilizing the fluctuation level and magnitude ratio to estimate the time delay between two microphones is suggested. Simulation results are presented to show the performance of the suggested method.

• 出版日期2010-1