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JPH03219797

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DESCRIPTION JPH03219797
[0001]
[Object of the Invention] (Industrial field of application) The present invention relates to a
speaker device incorporating a super woofer portion. 2. Description of the Related Art In recent
years, various so-called AV systems have been developed for viewing movie software, music and
the like while viewing an image by means of a television, a projector or the like as an AV speaker.
In this AV system, unlike conventional audio-only sound reproduction, it is required to give the
impression and presence as felt in a movie theater or a concert hall. Therefore, a speaker capable
of ultra low frequency reproduction is an essential element. In general, it is difficult for the
speaker to reproduce sufficient ultra low frequency unless the diameter of the speaker unit is
large and the speaker box is not large. However, as can be seen from today's housing
circumstances, it is difficult to secure a place to place a large speaker that can fully enjoy the full
power of the AV system in ordinary homes. It is the present condition that you can not but
endure with the speaker of the small cabinet. Also, in a normal audio system, it was possible to
construct a 3D system in which a large speaker for receiving super bass was placed at the center,
but in an AV system, video equipment such as a television or monitor was placed at the center.
This point is also difficult because it is Therefore, as shown in FIG. 3, a speaker system having a
narrow width dimension and a high height dimension called a toll boy type has been increasing.
However, in this type of speaker system, it is also difficult to reproduce sufficient super bass, so
recently, as shown in FIG. 4, there are various commercialized products incorporating a super
woofer section. . (Problems to be Solved by the Invention) As described above, enhancing the
acoustic performance in a small-sized speaker device is regarded as an important issue in the
field of audio development. The present invention is intended to solve such problems, and has an
object to provide a speaker device having a wide reproduction band and excellent sound
performance while having a simple configuration and a small size. [Configuration of the
Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the
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speaker device of the present invention has speakers for bass at both ends and a speaker for midhigh pitched sound at the middle portion. In the apparatus, the storage portion in which the low
frequency sound speakers at both end portions are respectively disposed surrounds the storage
portion in which the middle to high sound speakers are arranged and is acoustically
communicated with each other.
(Operation) In the speaker device according to the present invention, the storage units in which
the bass speakers are disposed are in acoustic communication with each other with the storage
unit in which the mid-high / high-tone speaker is disposed, thereby being radiated from the midhigh-high speakers The sound waves are shaped so as to be covered by super-low sound waves,
and as a result, it is possible to obtain a well-connected reproduced sound. In addition, with the
vertically symmetrical type, the upper and lower reproduction directivity characteristics become
symmetrical, and it is possible to obtain reproduced sound with an excellent sense of localization.
Furthermore, the sense of reality when performing surround reproduction can also be enhanced.
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of a speaker device according to an embodiment of the present
invention, and FIG. 2 is a cross-sectional view thereof. In these figures, 1 indicates a cabinet. The
inside of the cabinet 1 is a first cabinet volume 3 in which the middle to high-tone speaker units
2 for reproducing middle-to-high-pitched portions in the reproduction sound are disposed, and
the rear of the first cabinet volume 3 A second cabinet volume 6 in which two bass speaker units
4.5 are arranged, and a super woofer section located above and below the second cabinet volume
6 for reproducing super bass It consists of a third and fourth cabinet volume 7.8. In the third and
fourth cabinet volume sections 7.8, resonance ducts 9.10 for resonating the sound waves
radiated from the bass speaker unit 4.5 are disposed. That is, this speaker device is configured by
arranging the bass speakers at the top and bottom, arranging the middle-high-pitched
loudspeakers at the middle part, and the storage parts in which the bass speakers are arranged
are in acoustic communication. Further, an input terminal 11 for inputting an audio signal is
attached to the back of the cabinet 1. When an audio signal is input from the input terminal 11,
the audio signal is input to each of the mid to high-pitched speaker units 2 and each of the lowpitched speaker units 4.5 through the wiring 12. Thus, each speaker unit 2.4.5 is driven.
However, here, the voice signal is divided into respective bands via the network 13 and input to
the speaker unit 2 for middle and high tone. Then, the acoustic vibration emitted from the middle
to high-pitched speaker unit 2 is directly output to the outside, and the acoustic vibration emitted
from the low-pitched speaker unit 4.5 is disposed in the third and fourth cabinet volume portions
7.8. It resonates in the resonant duct 9.10. It becomes an ultra low tone and is emitted outside.
However, according to the speaker device of this embodiment, by arranging the super woofer
portion at a position across the middle and high-pitched speaker from above and below, the
sound waves radiated from each of the middle- and high-pitched speakers are supersonic sound
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It becomes included, and as a result, it is possible to obtain a well-connected playback sound. In
addition, since this speaker device is vertically symmetrical, the upper and lower reproduction
directivity characteristics are symmetrical, and it is possible to obtain reproduced sound with an
excellent sense of localization. Furthermore, when performing surround playback, the super bass
from the upper super woofer acts to receive the bass of the surround speaker arranged above the
room, so that the playback is excellent in realism It becomes possible. As described above,
according to the present invention, it is possible to realize a speaker device having a wide
reproduction band and excellent acoustic performance while having a simple structure and a
small size.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a perspective view for explaining the configuration of a speaker device according to an
embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, and FIG. 3 is a side
view showing a conventional toll boy type speaker device Fig. 4 is a perspective view showing a
conventional toll-boy type speaker apparatus incorporating a suit-woofer unit.
DESCRIPTION OF SYMBOLS 1 ... Cabinet, 2 ... Speaker unit for middle-high-pitched sound, 3 ... 1st
cabine Nod's volume part, 4.5 .. Speaker apparatus for low-pitched sound 2 ni soto, 6 ... 2nd
Cabinet volume of the 7th,..., 3rd cabine nod volume, 8: 4th cabinet volume, 9.10 ... duct.
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