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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of the
present invention, and FIG. 2 is an explanatory view showing the path of sound from reflection of
sound by an acoustic reflector to entry into the ear. In the drawings, the same reference
numerals indicate the same parts. In the figure, reference numerals 1 and 2 denote acoustic
reflection plates, and 3 and 4 denote sound reproducing devices. ????????????
DETAILED DESCRIPTION OF THE INVENTION The island proposal aims to increase the realism of
a stereo device with a simple complementary device. Conventionally, a stereo device is
configured by two forward phth noises. However, if you want to increase the stereo effect, but
more speakers + 2 + more at the rear. In this case, the input signal also uses one different from
the front. Among the more conventional ones, which are more than conventional ones, the
speakers are placed only in front of 6 ? -1 (13?1 и i и j ? ? ииииииииииииииииииииииииииииииииииии There is a
drawback that it is a large-scaled device because there is little feeling and the latter is placed with
the speaker 3 at the back to add reverberation, because it is necessary to make the addition of
the speaker and the input number separately. Because this device was made to ship to points like
the above, the equipment is simple and the necessary tatami mats are given, and it is 1:?
???? ???░???░?????????????????? An embodiment of the
present invention will be described with reference to the drawings. Each of (1) and (2) is a blue
tatami mat reflector, and is formed to be a paraboloid or a spherical surface, and is matched with
the central axis of the sound box reproduction appeals (3) and (4) to be Wh @ (6) Scattered
behind the). Incidentally, in order to make the height level of this axis hear and rejoice with the
ear (FIG. 2) of (b), a stand (6) of variable height is attached as shown in FIG. And when using the
company, as shown in Figure 1, k. The regenerators (3) and (4) are dispersed at an appropriate
angle, and after that, the stand (6) k shown in FIG. Adjust the height levels of (11 and (2) to the
level of the listener-Section 1. Next, the playback devices (3) and (4) are actually operated to
determine the positions of the acoustic reflectors (11 (21, respectively, and the order of the beast
is at this time the playback devices (3) (4 Put 11 on each line connecting Ml. Next, when
considering the time course of the case where it is k like 0 or more to describe its action, the
sound / reproduction device is first on the ear! Assuming that the time when the sound from i
enters is 0 seconds, the delay time according to the distance 111 of the ear and the reflector is
over! ! ii ? ? ? ? ? ? ? ? 8 ░ r <, bj ,: & -it ░ 1 For example, when the distance l (*), the
delay time noise is 0 (at) and = (it is self) . It is not clear enough about the reality of the
company's pleasure due to the presence of such debris. However, the reflected sound of up to
11111 same eyes gave a feeling of spatial spread. The reflected sound at 1150 ms и C ?? has
the effect of improving the light wIIt by making a direct sound 11111.
Research on the subject, etc. ,,,,, (8) '-'4g-12901-04', ', 4 и Yu Yuko facts Bo "Tsukitsuchi etc."
(previous work, P47, Kyoritsu Publishing 1968 ) K mentioned. In addition, this reflector is a
perfect surface if it is a paraboloid or a spherical surface, but if it is a curved surface near them,
the effect of the same Park can be obtained. In addition, by placing an appropriate sound
absorbing material on the surface of the sound reflector as shown in (7) of FIG. 2, it is possible to
cultivate the wave number characteristics and the level of the intensity of the reflected sound as
desired. .
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