Pioneer Corporation

Teruo Baba

Yoshiki Ohta

Takashi Mitsuhashi

Akihiro Tozaki

Masami Suzuki

Tohru Kanegae

Masahiro Katsumura

Kiyoshi Takei

Manahiko Hashiotani

The present invention provides a sound reproducing system and a sound reproducing apparatus that can provide a high realistic sensation to a user, without having to do a troublesome task on the user's side. A surround-sound system () includes: an array speaker system () that is formed with speaker units SPU having the same characteristics; and a signal processing apparatus () that drives the speaker units SPU independently of one another and amplifies an audio signal. The signal processing apparatus () includes: a signal processing control unit () that calculates each filter coefficient for each of the speaker units so as to generate reverberant components to be reflected by a wall surface of a listening room () when the audio signal or test signal is amplified through the array speaker system () based on preset reverberant characteristics; and a filtering unit () that divides the audio signal or test signal by the same number as the number of speaker units so as to obtain unit signals, and then performs signal processing on each of the unit signals divided based on each of the filter coefficients.

Sound reproducing apparatus and sound reproducing system

The present invention provides a sound field correcting system and a reverberation adjusting apparatus capable of correcting a reverberation time characteristic by an easy operation without setting a complicated parameter. A surround systemhas a sound reproducing apparatusfor adjusting a reverberation component of sound on the basis of a reverberation characteristic of a listening roomand amplifying the sound by a speaker system; and a microphonefor collecting the amplified sound in a specific listening position in the listening room. The sound reproducing apparatusincludes: a test signal generating devicefor generating a test signal; a space characteristic analyzerfor recognizing an attenuation characteristic indicative of attenuation with time in the listening room on the basis of the obtained amplified test signal, and calculating attenuation time in the listening position of the amplified sound on the basis of the recognized attenuation characteristic; and a signal processorfor adjusting the reverberation characteristic of the listening room

Reverberation adjusting apparatus, reverberation adjusting method, reverberation adjusting program, recording medium on which the reverberation adjusting program is recorded, and sound field correcting system

The present invention provides a sound reproducing system capable of accurately analyzing a reverberation characteristic of amplified sound including an arrival direction of a reverberation component, which is more natural, and has higher realistic sensation. A surround systemhas a speaker system, a signal processing apparatusfor recognizing a reverberation characteristic of a listening roomand adjusting a reverberation component of sound source to be amplified on the basis of the recognized reverberation characteristic, and a microphone arrayconstructed by a plurality of microphones M disposed in the listening roomand having the same characteristics, and in which distances among the microphones M are determined in advance. In the case where sound source is amplified and output from the speaker systemto the listening room, the microphone arraycollects amplified sound in a specific listening position in the listening room

Reverberation adjusting apparatus, reverberation correcting method, and sound reproducing system

A hybrid recording medium includes a read-only area in which a file is previously recorded, and a write area capable of updating and recording the file, characterized in that volume configuration informationand VTOCabout a file system are recorded in the write area is used in an information record apparatus.

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Tsurugashima, Japan

Teruo Baba