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The acceptability of artificial echoes' with reverberant speech and music

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Groups of subjects seated in a room of short reverberation time (0.15 s) assessed whether or not a single artificial echo added to speech or music was disturbing. The artificial echo varied 50 dB in intensity level and up to 600 ms in delay. The acceptable-echo-level/delay relation is shown to consist of three parts; the initial period when the Haas effect is prominent, an interim period determined by the decay time of the sound type, and a final period when the level of acceptable echo scarcely changes with the delay, being determined by the dynamic range of the programme material.
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Document Type: Research Article

Publication date: January 1, 1954

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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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