close

Вход

Забыли?

вход по аккаунту

JPS546901

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS546901
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a recording /
reproducing apparatus equipped with a sound pickup device according to an embodiment of the
present invention, FIG. 2 is a top view of the sound pickup device, and FIG. Fig. 4 is a perspective
view of a sound recording / reproducing apparatus equipped with a sound collecting apparatus
according to another embodiment, Fig. 4 is a front view of an auricle attached to the sound
collecting apparatus, Fig. 5 is a cross sectional view, and Fig. FIG. 7 is a top view of another
embodiment, FIG. 7 is a schematic view of headphone listening using the sound collecting
apparatus of the present invention, FIG. 8 is a schematic view of speaker listening using the
sound collecting apparatus of the present invention, FIG. FIG. 9 is a block diagram of the circuitry
in FIG. 1 ··· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · microphones 4, 4 '-·
· · · · · · · · · · · · 5 , 5 '· · · · · · · · · notch portion 6, 6' · · · · · · · · · · · · · · · · · · · · listeners, 8 ° 8 '· · · · · · · · ·,
9, 9 '······ Electro-acoustic transducer, 10 ······· Network, 11, 11 ′ ······ Amplifier, 12, 12 ′
········································································· Speaker.
DETAILED DESCRIPTION OF THE INVENTION The present invention uses two microphones and
is provided with a simple structure which can pick up a sense of reality, a direction, a pocket and
a sense of distance faithfully. A pseudo sound collecting device has been known as a device that
faithfully picks up a sense of reality, a sense of direction, and a sense of distance. This pseudo
head pickup device is a pseudo head similar to a human head, and microphones are housed in
the left and right ears of this pseudo head. When sound is collected using this pseudo head
pickup device, It is possible to collect sound similar to what a human being actually listens to,
and to reproduce the sense of reality, sense of direction, and sense of distance faithfully during
reproduction. 2.) In this pseudo sound collecting device, the interval of -2 black holes affects the
sound image localization at the time of reproduction, particularly the sense of direction and the
sense of distance. The above-mentioned conventional pseudo sort sound pickup device has a
drawback that it can not be optimally picked up by individuals with different interaural distances
10-05-2019
1
because the microphone spacing is constant. The present invention provides a sound collecting
device capable of eliminating the above-mentioned conventional drawbacks, and one
embodiment of the present invention will be described below with reference to the drawings. In
FIG. 1, reference numeral 1 denotes a recording / reproduction device, and on the upper surface
of the recording / reproduction device 1, a 2 ': 1iil inverted cylinder 2 or 2' is rotatably supported
n. The microphones 3, 3 'are accommodated in the cylindrical bodies 2, 2'. As described above, in
the above embodiment, since one inverted-shaped cylinder 2, 2 'in which the microphone 3.3' is
accommodated is supported in a rotatable manner, as shown in FIG. By changing the angle θ by
rotating the body 2.2 ′ 4, the microphone spacing can be arbitrarily changed. T 3 FIGS. 3 to 5
show another embodiment of the present invention. In this embodiment, hemispherical auricles 4
and 4 'which function in the same manner as human's auricle are attached to the tip of an
inverted cylinder 2 ° 2'. It is. The shape of the auricles 4, 4 'is hemispherical, and notches 5, 6'
are formed on the front side. When the auricle 4.4 'in which the notches 5, 51 are formed in this
manner is attached, it is possible to judge the back and forth of the sound source. FIG. 6 shows
still another embodiment of the present invention. In the present embodiment, the microphones
n and 6 support the cylinders 6 and 6 'housed rotatably so as to center around one point, and
also in this embodiment, when the cylinder 6.6' is rotated M, the microphone The spacing
changes. As described above, in the present invention, since the microphone interval can be
freely changed, the listener individual, between the individual ears of the individual: sound
collection matching the interval becomes possible, and the presence paper, sense of direction,
sense of distance at the time of reproduction Can be faithfully reproduced, 1, i # ゝ OT6.
"4-1" Fig. 7 shows a state where a signal collected by using the sound collection device of the
present invention is applied to the electro-acoustic transducers 9, 9 'of headphones to listen to
the headphones . 7. In FIG. 7, the tube is accommodated in a microphone and is rotated 2.2 "p to
set the distance between microphones to the interaural distance of the listener 7 (this is equal to
the distance between the sound sources A and B as microphones When sound is picked up by 3,
3 and amplified by the amplifier 8.8 'and listened to headphones, the listener 7 can faithfully
recognize the sound images At, Br. FIG. 8 shows a state in which a signal collected by using the
sound collection device of the present invention is applied to a speaker to be listened to sound,
sound from sound sources A and B, sound collected by two microphones 3, 3 ', After passing
through the network 10, they are respectively amplified by the amplifier 11.11 'and applied to
the speaker 2.12' to listen to the sound radiated from the speaker 2.12 '. Thus, when the
microphone interval is made to coincide with the interaural distance of the listener 7 by rotating
the single cylinder 2.degree. 2 ', the listener 7 can faithfully recognize 1 and the sound images A'
and B '. Can also O O J ,. 6る。 The circuit network 10 in FIG. 8 is configured as shown in FIG. H
+ and H2 in FIG. 9 are H + and H2 shown in FIG. 8, respectively, which represent the Fourier
transform 2 of the impulse response from the speaker 12.12 'to the entrance of the listener 7's
ear. As described above, according to the sound collection device of the present invention, since
the two cylindrical bodies accommodating the microphones are rotatably supported, the distance
10-05-2019
2
between the microphones is equal to the distance between the listeners. It has the advantage of
being able to faithfully reproduce the sense of reality, sense of direction and sense of distance.
10-05-2019
3
1/--страниц
Пожаловаться на содержимое документа