Repetition Pitch: Monaural Interaction of a Sound with the Repetition of the Same, but Phase Shifted, Sound
When a sound and the repetition of the same sound after a delay τ are presented together, monaurally, one perceives a “coloration”, accompanied by a pitch sensation. This pitch, RP (Repetition Pitch), appears to correspond to the reciprocal 1/τ of the delay time τ. However, when all the frequency components of the delayed sound are shifted in phase by 90°, 180° and 270° resp., the RP changes to 1.07/τ, 0.88/τ (or 1.14/τ) and 0.94/τ resp. (In our case the sound was white noise, delayed by a tape recorder.) The same pitches are perceived when listening to a random sequence of pulse pairs (pulse distance τ), where the first or (and) the second pulse is shifted in phase. These results cannot be explained simply by means of autocorrelation or frequency analysis.
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Document Type: Research Article
Publication date: January 1, 1966
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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