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JPH0486099

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DESCRIPTION JPH0486099
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
reproduction apparatus suitable for application to a so-called multi-sound source apparatus in
which sounds of a plurality of sound sources are respectively emitted by a plurality of speakers.
SUMMARY OF THE INVENTION The present invention relates to a reproduction apparatus
suitable for application to a so-called multi-sound source device in which sounds of a plurality of
sound sources are respectively emitted by a plurality of small speakers, for example. A playback
unit for playing back the recorded recording medium, a plurality of speakers for respectively
expanding a plurality of audio signals from the playback unit, and a superwoofer for expanding a
low frequency range of the audio signal; The system is made compact by sufficiently amplifying
the low frequency range of the audio signal obtained by separately adding the multiple audio
signals from the reproduction means together with the superwoofer. It is intended to give you a
sense of reality. [Prior Art] In recent years, multi recording is performed by dividing and
recording the performance sounds of different sound sources (drum, piano, contra-pass,
saxophone, vibraphone, etc.) on a recording medium for each channel. Reproduce and supply the
reproduction signals of the respective sound sources to the speakers respectively matching the
characteristics of the respective sound sources installed at the positions where the original sound
sources are placed, and respectively expanding the reproduction signals by the separate speakers
Thus, a so-called multi-sound source device has been proposed which allows real orchestral
performance to be performed audibly in front of the eye. [Problems to be Solved by the
Invention] In the above reproduction apparatus, speakers assigned to each sound source are, for
example, a bass drum in the low band, a snare drum or tom tom drum in the middle band, and a
cymbal in the high band. Therefore, to match this, a so-called large 3-way speaker (ie, a speaker
system including a low frequency woofer-1, a mid-town squawker, a high frequency stalker, etc.)
housed in a single enclosure. In the contrast path, etc., one way speaker with good low frequency
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characteristics is used. Furthermore, the size of the speaker is increased according to the socalled loudness of each sound source (i.e., the musical instrument). Therefore, a dedicated
speaker is used to reproduce each sound source, and the entire reproducing apparatus becomes
large. For example, movement of each speaker is performed each time reproduction is performed
assuming an orchestra or the like having a different arrangement of instruments. You will have
to For this reason, it is sufficient to make the size of each speaker the same and use a so-called
full range speaker, but in such a case, one speaker will sound from low frequency to high
frequency, so the low frequency is not particularly strong. There is a disadvantage that the sense
of reality can not be obtained.
The present invention has been made in view of the foregoing points, and an object of the
present invention is to propose a reproduction apparatus that can obtain sufficient realism even
with a small size. [Means for Solving the Problems] As shown in FIGS. 1 to 3, for example, the
reproduction apparatus of the present invention reproduces 8 self-recorded media in which
audio signals of a plurality of sound sources (11) are multi-recorded. <10), a plurality of small
speakers (5) for respectively expanding a plurality of audio signals from the reproduction means
(10), and a super woofer (9) for expanding a low frequency range of the audio signal The lowpass of the audio signal obtained by separately amplifying the plural audio signals from the
means (10) by the plural small speakers (5) and adding the plural audio signals from the
reproducing means (10) to the superwoofer It is intended to be expanded in 9). [Operation]
According to the present invention described above, the plurality of audio signals from the
reproduction means (10) are separately amplified by the plurality of small speakers (5)
respectively, and the plurality of audio signals from the reproduction means (10) are Since the
low frequency range of the added audio signal is amplified by the super woofer (9), the apparatus
can be miniaturized and a sufficient sense of reality can be obtained. [Embodiment] An example
in which the reproducing apparatus of the present invention is applied to a multi tone generator
will be described in detail below with reference to FIG. In FIG. 1, (la), (lb), =-.. (If) are input
terminals to which an audio signal is supplied, respectively, and these input terminals (la), (lb),.
The audio signal from) is supplied to the recording / reproducing circuit (3) via the amplifiers
(2a>, (2b),-= (2jQ), respectively. This recording / reproducing circuit (3) is a so-called PCM multitrack recorder using, for example, 8 mm video tape, and records, for example, audio signals of 12
channels simultaneously as digital signals on 8 mm video tape. The digital audio signals recorded
on the video tape are respectively reproduced and made into analog audio signals respectively,
and these analog audio signals are respectively output via the amplifiers (4a), (4b),... (41) to the
speakers (5a), (5b), it is supplied to the · · · · (5ss), and supplies the later-described adder (6). In
this adder, 6) adds, for example, 12 channels of audio signals from the recording / reproducing
circuit (3), and supplies the added audio signal obtained as a result of this addition to the low
pass filter (7). This low pass filter (7) has a pass band of, for example, 150 Hz or less, and 1j11!
Of the addition voice signal from the adder (6).
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Further, this audio signal is supplied via an amplifier (8) to a so-called superwoofer (9). This
super woofer (9) is a speaker that is used to expand the low band of approximately 1507 or less
and to give a more realistic sense of the low band than a number of speakers. Now, recording of
the sound of each sound source is performed as shown in FIG. 2, for example. That is, a
microphone (12a) placed near the high frequency generation part of the piano (lla) is connected
to the input terminal (1a), and a microphone (12b) placed near the midrange to low frequency
generation part of this piano (lla) Is connected to the input terminal (1b), and the microphone
(12c) installed in the drums's high harass (lltl) is connected to the input terminal (IC), and the
microphone (12d) installed in the snare drum (IIC) of this drums. Connect to the input terminal
(1d), connect the microphone (12e) installed on the bass drum (lid) of this drums to the input
terminal (1e), and connect the microphone (12f) installed on the tom tom drum (lie) of this
drums Connect this input to the input terminal (1f) lf) Connect the microphone (12g) installed on
the input terminal (1g), connect the microphone (12h) installed on the contra path (l1g) to the
input terminal (1h), and generate the high frequency part of the vibraphone (llh) Connect the
microphone (12i) installed in to the input terminal (li), install it in the low frequency generation
part of this vibraphone (llh), connect the microphone (12j) to the input terminal (IJ), and connect
it to the classical guitar (lli) Connect the installed microphone (12k) to the input terminal (1k)
and connect the microphone (12β) installed on the saxophone (Ilj) to the input terminal (11).
The player and each microphone (12a), (12b), ... (121) and each input terminal (la>, (lb)) of the
recording and reproducing device (10). (11) The illustration of the cords respectively connecting
between them is omitted. As described above, the microphones (12a>, (12b),... (12β) installed in
each of the musical instruments are respectively input terminals (la), (lb),... Of the recording /
reproducing apparatus (10). After connecting to (1f), perform band unsampling by the player
who plays each instrument, and also, from each input terminal (la), (lb),----(11), each amplifier
(2a) ), (2b),---(2C) respectively, the audio signal supplied and recorded and played back!
According to (3), for example, so-called multi-recording is performed on an 8 mm video tape.
Incidentally, the recording of each sound source may not be simultaneous but may be
sequentially recorded for each sound source. The 8 mm video tape multi-recorded in this way is
reproduced by the recording / reproducing device 10 as shown in FIG. Referring to FIG. 3, a full
range speaker (5a) having substantially the same position as, for example, the same size as the
position at which each of the musical instruments (lla), (llb), = .. (llj) shown in FIG. ), (5b), ... (51)
respectively. That is, the speakers (5a) and (5b) are at the position of the piano (lla) in FIG. 2, the
speaker (5C) is at the position of the vivat (1111) in FIG. 2, and the speaker (5d) is in FIG.
Position the snare drum (IIC), set the speaker (5e) to the position of the bass drum (lid) in FIG. 2,
set the speaker (5f) to the position of the tom tom drum (lie) in FIG. 2, and set the speaker (5g).
Set the position t of the cymbal (llf) in FIG. 2, the speaker (5h) to the position of the contra path (l
1g) in FIG. 2, and the speakers (51) and (5J) the position of pilafone (Ilb) in FIG. And the speaker
(5k) is in the position of the classical guitar (lli) in FIG. 2, and the speaker (51) To position the
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saxophone (11j) in the second view. Then, the super woofer (9) is placed at the position as shown
in the figure. As described above, each speaker (5a), (5b), ... (51) is arranged at the position of
each instrument at the time of unsampling of the band, and a super woofer (9) is further
arranged at a predetermined position to record The playback device (10) reproduces the audio
signal of each sound source from the 8 mm video tape recorded as described above. Then, the
listener who sits in the position as shown in the figure gets the feeling that v3 sense and the
unsampling by the band is performed in front of the eye, and the sound of the bass by the super
woofer (9) Because the effect of is added, it is possible to perform highly realistic music
appreciation. Further, since a full range speaker is used, there is no movement of the sound
image as in a so-called three-way speaker system, and the position of the sound image can be
kept constant. In the above example, an 8-mm video tape was mentioned as a recording medium,
but an optical disk or another magnetic tape is used, and the channel and recording method are
changed according to the recording medium to be used. Also good.
In addition, various sounds obtained by an instrument such as a synthesizer or a so-called
sampler may be used as the sound source without making the sound source a real instrument.
Also, two superwoofer (9), amplifier (8), low pass filter (7) and two adders (6) are provided
respectively, and 12 channels of audio signals are respectively added, filtered and amplified by 6
channels, The two superwoofers (9) may be supplied respectively. Further, it goes without saying
that the present invention is not limited to the above-described embodiment, and various other
configurations can be taken without departing from the scope of the present invention.
According to the present invention described above, the plurality of audio signals from the
reproduction means are separately amplified by the plurality of small speakers, and the low
frequency band of the audio signal obtained by adding the plurality of audio signals from the
reproduction means Since the speaker is amplified by a super woofer, the device can be
miniaturized and a sufficient sense of reality can be obtained.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a block diagram showing an example in which the reproducing apparatus of the present
invention is applied to a multi tone generator, FIG. 2 is an explanatory view showing an example
of recording method of sound of each sound source, and FIG. It is explanatory drawing which
shows the example of.
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(5 is a speaker, (9) is a super woofer 1 (10) a recording and reproducing device, and (11) is a
sound source.
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