ShepardTone
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For the description, I took the abstract of the original publication:
"A special set of computer-generated complex tones is shown to lead to a complete breakdown of transitivity in judgments of relative pitch. Indeed, the tones can be represented as equally spaced points around a circle in such a way that the clockwise neighbor of each tone is judged higher in pitch while the counterclockwise neighbor is judged lower in pitch. Diametrically opposed tones -- though clearly different in pitch -- are quite ambiguous as to the direction of the difference. The results demonstrate the operation of a "proximity principle" for the continuum of frequency and sugges that perceived pitch cannot be adequately represented by a purely rectilinear scale." (Shepard, R.(1964) "Circularity in Judgements of Relative Pitch". Journal of the Acoustical Society of America 36 (12): 2346-53.)
Cite As
Frederik Nagel (2024). ShepardTone (https://www.mathworks.com/matlabcentral/fileexchange/11347-shepardtone), MATLAB Central File Exchange. Retrieved .
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Version | Published | Release Notes | |
---|---|---|---|
1.0.0.0 | Parameters added for calling, such as tone duration. |