8th International Conference on Spoken Language Processing

Jeju Island, Korea
October 4-8, 2004

Time Delay Estimation Using Weighted CPSP Function

Hongseok Kwon, Siho Kim, Keunsung Bae

Kyungpook National University, Korea

A new TDE technique using the CPSP function weighed on each band is proposed. Observed and theoretical CPSP spectra are uniformly divided into several bands, and time delay having maximum cross correlation coefficient between observed and theoretical CPSP functions on each band is searched. Then the observed CPSP function is weighted depending on the phase linearity on each band. A weighted CPSP function is constructed by summing all the weighted CPSP functions on each band. Final time delay is determined as the time-lag that maximizes the weighted CPSP function. The simulation results show that the proposed method has slightly better performance than other methods in the noisy and reverberant environment.

Full Paper

Bibliographic reference.  Kwon, Hongseok / Kim, Siho / Bae, Keunsung (2004): "Time delay estimation using weighted CPSP function", In INTERSPEECH-2004, 2853-2856.