Title :
Holo-spectrogram and multi-dimensional encoding display
Author :
Yi, Zhng ; Gangyi, Jim ; Lihe, Zhm
Author_Institution :
Dept. of Electron. Eng., Hangzhou Univ., China
Abstract :
The theory and method of the sound holo-spectrogram are presented. An experimental system is developed, which is based on a multi-dimensional encoding display technique. The principle of the multi-dimensional encoding display is given, and the choice of encoding domain is discussed. The display maintains magnitude-greyness modulation in the conventional sound spectrogram, retains all signal information in the time-frequency domain. The holo-spectrogram is applied to the processing of speech and other acoustic signals. Some experimental results are given. The multi-dimensional encoding display can also be used in the analysis of the two-dimensional spectrum in other transform domains, such as the spatial frequency domain
Keywords :
acoustic holography; acoustic signal processing; display instrumentation; encoding; spectral analysis; speech analysis and processing; 2D spectrum analysis; acoustic signal processing; encoding domain; magnitude-greyness modulation; multi-dimensional encoding display; sound holo-spectrogram; spatial frequency domain; speech processing; time-frequency domain; Acoustic measurements; Acoustical engineering; Discrete Fourier transforms; Encoding; Multidimensional systems; Signal analysis; Spectrogram; Speech analysis; Time frequency analysis; Two dimensional displays;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184415
