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Low frequency loudspecker enclosure with configurable directivity

A speaker box and speaker technology, applied in the direction of frequency/direction characteristic devices, sensors, sensor parts, etc., can solve problems such as failure

Inactive Publication Date: 2005-08-31
奥特兰诺塞利G&C公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Over the years, proposals for subwoofers utilizing these "technologies" have been proposed, however without particular success, perhaps due to issues of overall performance and / or cost-effectiveness

Method used

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  • Low frequency loudspecker enclosure with configurable directivity
  • Low frequency loudspecker enclosure with configurable directivity
  • Low frequency loudspecker enclosure with configurable directivity

Examples

Experimental program
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Embodiment Construction

[0027] The shown subwoofer or subwoofer setup has two loudspeakers (Spk1 & Spk2) housed in a single box (V1) of very compact dimensions, eg 70 x 60 x 50 cm. The two speakers can also be infinitely different from each other (e.g. one 18" and the other 15") and can be oriented in opposite directions, one forward and the other backward. In the box (V1) two ducts (P1, P2) are arranged on at least two sides of the front loudspeaker and the rear loudspeaker towards the chamber (V2) with side openings (P3, P4, P5). Basically, the two loudspeakers have the same volume of air in common and the same signal generator (Fig. 3), but two separate amplification circuits (11, 12) cause signals with different amplitudes and phases to convert the loudspeakers Powered as separate components, respectively, the amplifying circuits also include electronic delay circuits 13, 14, respectively.

[0028] Geometry (when electronically assisted) when omnidirectional low frequency propagation is not requ...

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PUM

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Abstract

This invention relates to a low frequency loudspeaker (sub woofer), which comprises at least one pair of loudspeakers mounted in the same box, facing in opposite directions and powered as separate elements by signals coming form a single source but having different amplitude and phase.

Description

technical field [0001] This invention relates to loudspeaker enclosures, and more particularly to low frequency loudspeaker enclosures. Background technique [0002] Today, there are more demands than ever for music and speech reproduction, live applications, and professional or other purposes, requiring the use of loudspeakers suitable for said purposes. [0003] These loudspeakers increasingly need to control their emission directionality to ensure high-quality high-level reproduction only in the desired area. [0004] It is well known that directional control is related to the size of the sound system or, more preferentially, to the size of the specific elements that make up the system. These dimensions are in turn related to the frequency or wavelength of the frequency band to be reproduced by the above-mentioned element. For example, when controlling the frequency band from 1000 Hz to 20000 Hz to measure an attenuation of 6 dB in the required spread, the parameters co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/00H04R1/20
CPCH04R1/20
Inventor G·诺塞利S·诺塞利M·诺塞利
Owner 奥特兰诺塞利G&C公司