JPS61219293A - Sound field reproducing typed speaker system - Google Patents

Abstract

PURPOSE:To enlarge listening area by installing a reproducing speaker unit for medium/high sound facing to a listener and installing a reflecting plate with certain angle. CONSTITUTION:The distance from a listener 6a to left and right speakers, 9 and 10, is equal and sound image obtained at the position is fixed at the center of two speakers. The position of a listener 6b is nearer to a left speaker 9 but a medium/high sound reproducing speaker unit 7 is provided facing and leaning with the inner side to the listener and so sound level from the left speaker 9 becomes low relatively and the level from the right speaker 10 becomes high and therefore, the sound image obtained at this position is fixed at the center of the two speakers. Furthermore, in a specially high sound area, sound is enlarged by a reflecting plate 8 that is installed at the left and the right speaker systems 9 and 10 and the sound is reflected a wall etc. at the side of speakers and so natural feeling of attendance (the feeling of reverberation) is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sound field reproduction type speaker system for reproducing a realistic sound field.

2. Description of the Related Art In recent years, there has been a demand for a sound field reproduction type speaker system for creating a realistic sound field when integrating video and sound images.

An example of the conventional sound field reproduction type speaker system mentioned above will be described below with reference to the drawings.

FIGS. 3 and 4 are diagrams showing the structure of a conventional sound field reproduction type speaker system and its usage state.

In Fig. 3, 1 is a speaker unit for bass reproduction, 2
Reference numeral 3 indicates a speaker unit for reproducing mid-range sounds arranged toward the listener side from the speaker unit 1 for reproducing bass sounds, and a speaker unit 3 for reproducing high-pitched sounds arranged toward the front and outside.

The operation of the sound field reproduction type speaker system configured as described above will be explained below using FIG. 4.

In Fig. 4, 4 is the left speaker and 6 is the right speaker 6.
is the listener. For the listener 6a, since the distance from the left and right speakers 4.6 is equal, the sound image obtained there is localized at the center of the two speakers. For the listener 6b, if the speaker system is a normal speaker system, it would be close to the left speaker 4, so the sound image would be localized to the left side, but in the case of the speaker system 4.5, the midrange reproduction speaker unit is placed toward the center. As a result, the level of the sound from the left speaker 4 is relatively lowered, and the level of the sound from the right speaker 6 is relatively higher, so the sound image obtained there is the same as that for the listener 6a. Position in the center. In addition, since the same thing as the listener 6b occurs in the listener 6c, the sound image obtained there is different from that of the listener 6b.
As in case a, it will be localized at the center of the two speakers.

Furthermore, the speaker units for high-frequency sound reproduction arranged outwardly in the left and right speakers 4.6 reflect high-frequency components on walls and the like, creating a sense of spaciousness.

Problems to be Solved by the Invention However, the above configuration has a problem in that the cost is high because a large number of speaker units are used.

In view of the above problems, the present invention provides an excellent sound field reproduction type speaker system that can easily expand the listening area at low cost and provide a natural sense of presence (reverberation). .

Means for Solving the Problems In order to solve the above-mentioned problems, the sound field reproduction type speaker system of the present invention has a speaker unit for reproducing medium and high frequencies mounted facing the listener side and reflecting the reproduced sound. A reflector plate is installed at a certain angle to the speaker for mid- and high-frequency sound reproduction.

action The effects of the present invention are as follows.

First, because the speaker unit for medium and high-frequency sound reproduction is mounted facing the listener, the sound image will be localized to the center of the left and right speakers even if the distances from the left and right speakers are unequal, just like in the past. Therefore, the listening area can be expanded.

In addition, since the reflector is attached at a certain angle to the speaker unit for mid- and high-frequency sound reproduction, sound in the mid-to-high range is particularly diffused outward, creating a more natural sense of presence. Basically, such a configuration requires only one speaker for medium and high frequency reproduction, and there is no need to provide a special speaker unit to obtain a sense of presence (reverberation).
A natural sense of presence (reverberation) can be easily obtained without increasing costs.

Embodiment Hereinafter, a sound field reproduction type speaker system according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the configuration of a sound field reproduction type speaker system in an embodiment of the present invention. In Figure 1, 7
8 is a speaker unit for medium and high frequency sound reproduction, and 8 is a reflector.

The operation of the sound field reproduction type speaker system configured as described above will be explained below with reference to FIGS. 1 and 2.

FIG. 2 shows the usage state of the sound field reproduction type speaker system of the present invention, where 9 is the left speaker system and 1o is the right speaker system. In Figure 2, listener e
In &, since the distances from the left and right speakers 9 and 1o are equal, the sound image obtained there is localized at the center of the two left and right speakers. Since the listener 6b is close to the left speaker 4, the sound image would be localized to the left in a normal speaker system, but the speaker system 9.1
In case o, as shown in Fig. 1, the speaker unit for medium and high frequency reproduction is arranged inward and tilted toward the listener, so the level of the sound from the left speaker 9 is relatively low, and the sound level from the right speaker 9 is relatively low. Since the level of the sound from 1o increases relatively, the sound image obtained here will be localized at the center of the two speakers. Further, since the same thing as that of the listener 6b occurs in the listener 6C, the sound image obtained there will be localized at the center of the two speakers as in the listener 61L.

Furthermore, especially in the high frequency range, the sound is diffused by the reflecting plates 8 attached to the left and right speaker systems 9 and 1o. This depends on the shape of the reflector 8, but since the sound is mainly diffused toward the outside of the speaker system, the sound is reflected on walls, etc. on the sides of the speakers, creating a natural sense of presence (reverberation). It turns out.

As described above, according to this embodiment, the speaker unit for reproducing mid-high tones is attached facing the inside of the two speaker systems, and the reflective plate is provided at a certain angle on the speaker unit for reproducing mid-to-high tones, thereby creating a special unit. It is possible to easily expand the listening area without adding any additional sound, and it is also possible to obtain a natural sense of presence (reverberation).

Effects of the Invention As described above, the present invention provides a speaker unit for reproducing mid-high tones that is mounted so as to face the listener, and a reflector plate for reflecting the mid-to-high tones to be mounted at a certain angle on the speaker unit for reproducing mid-to-high tones. By attaching the device with the speaker, the listening area can be easily expanded without adding a special speaker unit, and a natural sense of presence (reverberation) can be obtained.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a sound field reproduction type speaker system according to an embodiment of the present invention, Fig. 2 is a perspective view showing the usage state of the sound field reproduction type speaker system of Fig. 1, and Fig. 3 is a conventional sound field reproduction type speaker system. FIG. 4 is a perspective view showing the state in which the sound field reproduction type speaker system of FIG. 3 is used. A...Speaker unit for medium and high frequency reproduction, 8...
...Elbow board. Name of agent: Patent attorney Toshio Nakao (1 person/m1)
Il Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A sound characterized in that a speaker unit for reproducing mid-high and high-frequency sounds is attached at an angle toward the listener, and a reflector for reflecting the reproduced mid-to-high frequencies is attached at a certain angle to the speaker unit for reproducing mid- and high-frequency sounds. Field reproduction type speaker system.