Improved Quasi‐Stereophony and “Colorless” Artificial Reverberation
作者:
M. R. Schroeder,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1961)
卷期:
Volume 33,
issue 8
页码: 1061-1064
ISSN:0001-4966
年代: 1961
DOI:10.1121/1.1908892
出版商: Acoustical Society of America
数据来源: AIP
摘要:
“Quasi stereophony” is defined as the reproduction over two or more loudspeakers (or binaural earphones) of different sound signals derived from a single audio signal. The purpose of quasi‐stereophony is to create (from a single audio signal) an illusion of spatially distributed sound sources. Quasi‐stereophonic reproduction does not permit correct localization but does share with true stereophony the properties of “depth” and “ambience” which are important attributes of stereophony (for the casual listener perhaps even more important than correct localization).This paper describes a new filtering method for producing quasi‐stereophony. In contrast to earlier proposals, the new filtering method leaves the amplitude spectrum of the sound intact. The same kind of filter has also been used for generating “colorless” artificial reverberation. Experimental results indicate that both quasi‐stereophony and artificial reverberation can be achieved without spectral distortion.
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