Perception of the Quality of Sound Amplitude-modulated with Triangular Waves

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概要

• 論文の詳細を見る

• This paper discusses multidimensional perceptual space derived from the results of psychoacoustical experiments on similarities in the quality of sounds amplitude-modulated by nine triangular waves different in rise- and fall-times. For sinusoidal (1 kHz) and random-noise carriers, three experiments were conducted with different modulation frequencies, namely 8, 16 and 32 Hz. In each experiment, similarities in sound quality for stimuli with modulation depths of 0.4, 0.8 and 1.0, as well as the original carrier wave, were rated. The similarities were analyzed by a multidimensional scaling method (ALSCAL), and three-dimensional configurations were derived. A common configuration correlated with the modulation depth was seen irrespective of carrier wave and modulation frequency. There was a perceptual dimension related to shape of amplitude modulation for all conditions except for noise carrier with 32-Hz modulation. The difference in rise time caused larger differences in sound quality than similar differences in fall time up to a modulation frequency of 16 Hz, irrespective of the kind of carrier wave.

• 東北大学の論文

著者

• Suzuki Yoiti

  Research Institute of Electrical Communication, Tohoku University

• Suzuki Y

  The Research Institute Of Electrical Communication Tohoku University

• Suzuki Y

  Research Institute Of Electrical Communication Tohoku University

• Sone T

  Tohoku Univ. Sendai‐shi Jpn

• Sone T

  Akita Prefectural Univ. Honjo Jpn

• Sone T

  Faculty Of Systems Science And Technology Akita Prefectural University

• Sone Toshio

  The Akita Prefectural University

• Sone Toshio

  Emeritus Professor Tohoku University

• Suzuki Yoiti

  Research Institute Of Electrical Communication

• Sone Toshio

  Faculty of Systems Science and Technology, Akita Prefectural University

• Sone T

  Akita Prefectural Univ. Honjyo Jpn

• Suzuki Y

  Research Institute Of Electrical Communication Graduate School Of Information Sciences Tohoku Univer

• Ozawa Kenji

  Faculty Of Engineering Yamanashi University

• KUMAGAI Kunihiro

  Integrated System PF Engineering Department, ALPINE ELECTRONICS INC., Iwaki

• Suzuki Yoiti

  Research Institute For Electrical Communication/graduate School Of Information Sciences Tohoku Unive

• Sone Toshio

  Faculty Of Systems Science And Technology Akita Prefectural University

• Kumagai Kunihiro

  Integrated System Pf Engineering Department Alpine Electronics Inc. Iwaki

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