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Sound beam loudspeaker system

A loudspeaker, sound beam technology, applied in the direction of loudspeaker distribution signal, microphone, spatial/structural arrangement of loudspeaker, etc.

Inactive Publication Date: 2006-03-29
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is clearly unsatisfactory, and in recent years attempts have been made to reduce the number of speakers producing surround sound, or to at least provide better integration between the new surround sound system and any legacy stereo equipment

Method used

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  • Sound beam loudspeaker system
  • Sound beam loudspeaker system
  • Sound beam loudspeaker system

Examples

Experimental program
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Embodiment Construction

[0058] Referring to FIG. 1 , there is shown a front face 100 of a loudspeaker system of a known transducer array. In the following, this system and the new system according to the variant of the invention will generally be referred to as "Sound Projector".

[0059] The known loudspeaker system of Fig. 1 comprises an array 110 of 254 transducers 111, each transducer having a diameter of 35 mm. The transducers are arranged on a grid with a rectangular envelope or a surrounding triangular pitch. The array 110 itself is mounted on a rectangular substrate 101 . The overall dimensions of the substrate are 900mm long and 522mm high. Transducer 111 nominally has good sound reproduction across most of the sound spectrum. Given their small diaphragm size, the travel of the moving coil system needs to be increased to achieve sufficient power, so the transducers 111 used in known designs are rather difficult to manufacture and relatively expensive.

[0060] The prior art provides a tw...

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PUM

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Abstract

A loudspeaker system is described including an array of electro-acoustic transducers capable of generating steerable beams of sound and additional transducers adapted to reproduce low frequency sound being placed at the perimeter of said array.

Description

technical field [0001] The invention relates to a device comprising an array of electro-acoustic transducers capable of generating an audible sound beam. More particularly, the present invention relates to such an array device capable of receiving multi-audio or multi-channel audio input signals and independently producing steerable audio signals at levels suitable for home entertainment or professional sound reproduction applications. and a focusable beam of audible sound. Background technique [0002] In recent years, multi-channel stereo has been widely used in audio / video systems. The technological trend has diverged from conventional stereophonic reproduction systems towards "surround sound" techniques in which the sound field is dynamically (and intentionally) shifted to the sides and behind the listener. [0003] In order to enhance the characteristics perceived by the listener, known multi-channel sound reproduction systems include one or more surround sound channe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/40H04R3/12H04R5/02H04N5/64H04N5/445H04N5/45
CPCH04N5/45H04R3/12H04R2201/401H04R2217/03H04R2203/12H04R2205/022H04N5/642H04R2201/403H04R2201/405H04N21/4316H04N21/47H04R2499/15H04R1/403H04R5/02H04N21/42204
Inventor A·霍利U·R·莱内尔A·G·古迪M·R·谢泼德I·A·比内克