Playback apparatus and playback method

Details Playback apparatus and playback method Playback apparatus and playback method

2011-07-12

2011-07-12

Faulk, Devona E (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

C381S001000, C381S017000, C381S019000, C381S300000

Reexamination Certificate

active

07978860

ABSTRACT:
A playback apparatus includes a forming section which, on the basis of an audio signal to be played back, forms audio signals on a plurality of channels for emitting sounds from a pair of sound sources, and a signal processing section which, on each of the audio signals formed by the forming section, performs signal processing for forming a targeted sound field. The signal processing section inclines a sound pressure distribution so that, for each sound source, sound pressure levels of sounds emitted from the sound source to a listening position increase in inverse proportion to angles formed between emitting directions of the sounds emitted from the sound source to the listening position and a straight line connecting the pair of sound sources.

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Yoshio Yamazaki, “Kirschhoff-sekibun-hoteishiki-ni Motozuku Sanjigen-barcharuriarithi-ni Kansuru Kenkyu (Study on Virtual Reality based on Kirchhoff's Integral Equation)” Waseda University, Advance Research Institute for Science and Engineering, Acoustic Laboratory.

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