High quality and low complexity pitch modification of acoustic signals

Gang Janp Lin*, Sau-Gee Chen, Terry Wu


研究成果: Conference article同行評審

5 引文 斯高帕斯(Scopus)


A high-quality and low-complexity algorithm for pitch modification of acoustic signals is proposed. It is high quality, because time-domain waveform shape and phase synchrony of a synthesized signal closely resemble that of its original signal. Low complexity is attained by performing the algorithm entirely in time domain with fast algorithm, and without resorting to complicated frequency domain analysis consists of fast algorithms of finding minimum absolute error (MAE) and a cross fading operation for high correlation gain and phase synchrony. The MAE-based algorithm is shown to yield smaller complexity, and better performance, than other well-known correlation cost functions. Pitch modification is performed by selecting and synthesizing apposite frames from original input signals in a way such that the original waveform shape and phase synchrony are preserved. Subjective tests showed a comparable performance to that of the best known algorithms, but at much reduced complexity.

頁(從 - 到)2987-2990
期刊ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
出版狀態Published - 9 五月 1995
事件Proceedings of the 1995 20th International Conference on Acoustics, Speech, and Signal Processing. Part 2 (of 5) - Detroit, MI, USA
持續時間: 9 五月 199512 五月 1995


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