KR870007640A - Aerodynamic Bass Reflective Enclosure - Google Patents

Abstract

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Description

Aerodynamic Bass Reflective Enclosure

Since this is an open matter, no full text was included.

FIG. 1A is a front view of a 2-woofer ducted port speaker enclosure.

FIG. 2A is a back view of a government speaker of a two-woofer ducted port speaker enclosure showing the location of attenuation material on the top and bottom sectors of the speaker frame. FIG.

3A is a front view of a 1-woofer ducted port speaker enclosure.

* Explanation of symbols for main parts of the drawings

10,134: cabinet 12,14,136: woofer speaker 16,18,138,140: sound duct

20, 142: front panel 26, 28, 148: cone 120: frame

126: attenuation material

Claims (2)

In the sound reproduction cabinet for increasing the leakage of the low frequency range of the reproduction sound, a. A housing surrounding an air mass of a set volume having a right wall, a left wall, a front panel, a back panel, a government panel, and a bottom panel of a predetermined size; b. An acoustic attenuation device of a predetermined size attached to the right side wall and the left side wall in the housing; c. A first projection portion of vibrating sound pressure generated in the volume of the air mass by the first speaker; d. A second projection portion of the vibration sound pressure generated in the volume of the air mass by the second speaker; e. the first speaker installed on the front panel of the housing at a set distance from the bottom of the housing and from the right and left walls and having a speaker cone of a set radius; f. The second speaker installed on the front panel at a distance set from the first speaker and from the right and left walls, the second speaker having a frame extending into the housing; g. A frame having a plurality of open sectors of similar size spaced substantially symmetrically with respect to the frame, at least one of the plurality of open sectors facing the government of the housing and at least one of the plurality of open sectors facing the bottom of the housing; h. A damping device for reducing a second projection of vibrating sound pressure from the front and bottom open sectors of the second speaker; i. A first acoustic duct having a predetermined sized top, bottom and right side attached in the housing at a first opening on the front panel of the housing, the first opening having a cross-sectional size similar to the first acoustic duct, 2 installed at a set distance from the speaker and from the housing of the housing; j. A front part and a bottom part of the first acoustic duct attached at right angles to the right side of the acoustic duct and to the left wall of the housing; k. A second acoustic duct having a predetermined sized top, bottom and left side attached to the housing at a second opening on the front panel of the housing, the second opening having a cross-sectional size similar to that of the second acoustic duct, 2 installed at a set distance from the speaker and from the housing of the housing; l. A top and a bottom of the second acoustic duct attached at right angles to the left side of the acoustic duct and to the right wall of the housing; m. The set volume, size and distance are derived only from a set radius of the first speaker cone; n. In the acoustic duct, the first speaker is increased from the first and second acoustic ducts to the second projection of the vibration sound pressure by the second speaker in order to increase the leak of the low frequency range of reproduction sound from the speaker. A sound reproducing cabinet characterized by a combination of a first projection portion of the vibration sound pressure caused by the sound, and a sound attenuator on the front and bottom open sectors and a sound attenuator on the wall. In the sound reproduction cabinet for increasing the intensity of the low frequency range of the reproduction sound, a. A housing surrounding an air mass of a set volume having a right wall, a left wall, a front panel, a back panel, a government panel, and a bottom panel of a predetermined size; b. An acoustic attenuation device of a predetermined size attached to the right side wall and the left side wall in the housing; c. A projection unit of vibrating sound pressure occurring in the volume of the air mass by the speaker; d. A speaker installed on the front panel of the housing at a set distance from the bottom of the left and right and from the right and left walls, the speaker having a speaker cone of a set radius; e. A first acoustic duct having a predetermined sized top, bottom and right side attached in the housing at a first opening on the front panel of the housing; The first opening has a cross-sectional size similar to the first acoustic duct and is installed at a set distance from the speaker and from the top of the housing; f. A top and bottom portion of the first acoustic duct attached to the right side of the acoustic duct and at right angles to the left wall of the housing; g. A second acoustic duct having a predetermined sized top, bottom and left side attached in the housing at a second opening on the front panel of the housing, the second opening having a cross-sectional size similar to that of the second acoustic duct, Installed at a set distance from and from the government of the housing; h. A top and a bottom of the second acoustic duct attached at right angles to the left side of the acoustic duct and to the right wall of the housing; i. The set volume, size, and distance are derived only from the set radius of the speaker large; j. Vibration noise in the air mass generated by the speaker in the first and second acoustic ducts to increase the intensity of the low frequency range of the reproduced sound in the acoustic duct to extend the range of the low frequency sound in the acoustic duct below the range of the low frequency sound from the speaker. Acoustic reproduction cabinet featuring a combination of pressure and nominal acoustic dampers. ※ Note: The disclosure is based on the initial application.