Sound "Spot" Forming by Orthogonal Two Lines of Speaker Array

Toba, T.; Mizoguchi, Hiroshi; Kagami, Satoshi; Nagashima, Koichi

doi:10.1299/jsmermd.2003.58_3

Cited by 3 publications

(3 citation statements)

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“…The loudspeaker arrays system forms a spot-like small area of high sound pressure level (hereafter called Sound Spot) only at a specific position such as person's heads. The shape of the Sound Spot with two orthogonal axis loudspeaker arrays (64 channel) [2] and the shape of the Sound Spot with three orthogonal axis (96 channel) [3][4] [5] loudspeaker arrays are different respectively. Then, the purpose of this paper is the simultaneous generation of the two or more shape Sound Spot.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous generation of various shaped Sound Spots with multiple linear speaker arrays

Horio

Ohtomo

Takemura

et al. 2007

SICE Annual Conference 2007

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Section: Introductionmentioning

confidence: 99%

Simultaneous generation of various shaped Sound Spots with multiple linear speaker arrays

Horio

Ohtomo

Takemura

et al. 2007

SICE Annual Conference 2007

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“…The sound spot means a small area of higher sound pressure level. For example, the orthogonality two lines loudspeaker arrays can form the sound spot like a cylinder [1]. Because the existing linear loudspeaker arrays system is heavy and hard to transport, the existing system is impractical.…”

Section: Introductionmentioning

confidence: 99%

Implementation of luggable linear speaker array system and formation of Sound Spot

Fukasawa

Takemura

Mizoguchi

2007

SICE Annual Conference 2007

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This paper describes a luggable linear loudspeaker arrays system and formation of a sound spot. Many loudspeakers located in line are called a linear loudspeaker array. The linear loudspeaker arrays of some lines can form a sound spot in a focus. It is because the appropriate attenuation and the delay for each linear loudspeaker are given. The sound spot means a small area of higher sound pressure level. The existing linear loudspeaker arrays system is heavy and hard to transport. The existing linear loudspeaker array of one line is 2700 mm × 1650 mm and 120kg. Therefore, a luggable linear loudspeaker array (1050 mm x 16 mm, and 5kg) is developed by utilizing the commercial multi-channel surround loudspeaker (YAMAHA YSP-1000). And we actually measure 3D distribution of sound pressure level by the constructed linear loudspeaker arrays system.

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“…focuses, each sound spot is generated by speaker array of two approaching axisnamely 64 speakers. [2] . - The effect of sound spot generation is higher in case of each of different voice information than in case of the same one.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous generation/capture of multiple focuses sound beams

Tamai

Kagami

Mizoguchi

et al.

SMC'03 Conference Proceedings. 2003 IEEE International Conference on Systems, Man and Cybernetics. Conference Theme - System Se

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This paper describes sound beam generation and capture by speaker array and microphone array system. I6ch online speaker array system generates sound beam towards appropriate directions. 128ch square speaker array system generates sound spot towards appropriate positions. Since it transmits necessary sound information to only a specific person, if can be used in quiet places, such as a museum. 8ch online microphone array qystem captures sound from appropriate direction. It can be used as ears of a humanoid robot. The authors call a posiiion to want to generatefcaphrre sound 'yacus". Focusing is achieved by Sum and Delay Beam Former. (SDBF) More than two focuses can be simultaneously generatedkaptured by Speaker Array/Microphone Array. Speaker array system is evaluated by using gantry and sound level meter ihat are controlled by PC system. Microphone array system is evaluated by usingfrequency ingredient of the sound

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Sound "Spot" Forming by Orthogonal Two Lines of Speaker Array

Cited by 3 publications

References 0 publications

Simultaneous generation of various shaped Sound Spots with multiple linear speaker arrays

Simultaneous generation of various shaped Sound Spots with multiple linear speaker arrays

Implementation of luggable linear speaker array system and formation of Sound Spot

Simultaneous generation/capture of multiple focuses sound beams

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