JP2002152880A - Music appreciation chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a music appreciation chair that can supplement deficient vibration caused by reduction in a low frequency component signal to vibrate a reclining sheet or the like in tuning to a music signal. SOLUTION: A vibration unit to vibrate the reclining sheet or the like is driven by a music signal resulting from summing a 2nd channel music signal including many low frequency component signals to a 1st channel music signal including a few low frequency component signals in a multi-channel signal supplied to the music appreciation chair.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a music appreciation chair which supplies a music signal to a speaker and a vibration unit incorporated in a chair, reproduces the music signal, and generates vibration in the vibration unit in synchronization with the music signal. More particularly, the present invention relates to a music appreciation chair for reproducing a multi-channel music signal.

[0002]

2. Description of the Related Art A conventional music appreciation chair has a speaker and a vibration unit, and reproduces a music signal from a recording medium by a speaker and simultaneously vibrates the vibration unit in synchronization with the music signal. Have been.

[0003] Also, Japanese Patent Application Laid-Open No. 7-23829 discloses that
A music signal reproduced from a recording medium is supplied to a speaker and a vibration unit that generates vibration in a low frequency range. The music signal is reproduced from the speaker, and the vibration unit is vibrated. There is disclosed a music appreciation chair that controls an electric reclining seat in response to start and end, and automatically changes the reclining seat angle of the chair to avoid the trouble of manually operating the reclining seat.

[0004] Further, as a music appreciation chair using a multi-channel reproduction system for reproducing multi-channel music, the chair shown in FIG. 3 is also known.

[0005] In FIG. 3, reference numeral 1 denotes a multi-channel reproducing device, which is a tape cassette, a CD (Compact Disc), a DVD, or the like.
(Digital Versatile Disc) and the like, and includes a player for reproducing a multi-channel music signal recorded on a recording medium such as a digital versatile disc, a multi-channel power amplifier, and the like.

[0006] The multi-channel reproducing apparatus 1 includes left and right front channel speakers (hereinafter, FLS and FRS).
It is written. ) 2, 4 and the center channel speaker (hereinafter, referred to as
Recorded as CS. 3) and left and right side channel speakers (hereinafter, referred to as LS and RS) 5, 6 and rear channel speakers (hereinafter, referred to as RC) 12 to output music signals.

[0007] Reference numeral 7 denotes a music appreciation chair as a whole. An RC 12 and a vibration unit 10 for generating vibrations in a low frequency range are disposed behind a reclining seat 7b provided on the back of a seat 7a of the chair.

[0008] An input terminal 8 is provided on the music appreciation chair 7, and a rear channel signal is supplied from the multi-channel reproducing device 1 to drive the RC 12 and to the vibration unit vibration circuit 11 to drive the vibration unit 10. ,
The music appreciation chair 7 is vibrated.

[0009]

The driving of the vibration unit 10 in synchronization with the above-mentioned music signal and the automatic setting of the angle of the reclining seat 7b are different from those of the first embodiment. The low frequency vibration can relax the muscles of the human body and enhance the relaxation effect. However, since the vibration unit 10 that vibrates the music appreciation chair 7 at a low frequency band vibrates according to the low frequency band signal of the music signal, the low frequency component of the music signal disappears or the vibration unit 10 When the vibration is reduced, the massage effect is lost and the user cannot be given relaxation.

When the music appreciation chair 7 is used in the multi-channel reproduction system, the reclining seat 7
b is driven by a rear-channel music signal. The rear-channel music signal has a large number of phase-difference components that emphasize the spread, and is a part of the entire music signal. When the number of low frequency component signals decreases, the vibration generated in the vibration unit 10 sharply decreases, and in some cases, the vibration is interrupted.

The present invention has been made in order to solve the above-mentioned problems.
Even when the low frequency component signal of the music signal of the rear channel input to the input terminal 8 is insufficient and the low frequency vibration cannot be obtained by the vibration unit 10, the center channel or the like input from the input terminal 9 provided separately is provided. An object of the present invention is to supply a music signal to the vibration unit 10 and add it to the music signal of the rear channel to obtain a music appreciation chair capable of preventing low-frequency vibration from being reduced or interrupted.

[0012]

According to a first aspect of the present invention, a music appreciation chair according to the present invention is a music appreciation chair for listening to a music signal from a multi-channel reproducing means. The first input means 8 for inputting the first channel music signal from the reproducing means 1, the second input means 9 for inputting the second channel music signal, and the input means for the second channel A switching means 19 for turning on / off the music signal, a signal adding means 15 for adding the music signal inputted from the first input means 8 and the music signal outputted from the switching means 19, and a signal adding means 15. A vibration generating means for generating a vibration by an output signal; and a signal level for comparing a signal level of a low frequency component of the music signal of the first channel with a predetermined reference signal level. And a compare unit 20, when the signal level Vrear the low frequency components of the first channel music signal is lower than the reference level Vref, the signal level comparing means 20
Is characterized in that the switching means 19 is controlled so as to add the low frequency component of the second channel music signal to the low frequency component signal of the first channel music signal.

According to a second aspect of the present invention, there is provided the music appreciation chair according to the first aspect, wherein the music signal of the first channel is a rear channel signal, and the second channel signal is other than the rear channel signal. This is a channel signal.

According to a third aspect of the present invention, there is provided a music appreciation chair, comprising: input means for inputting a music signal from a multi-channel reproducing means; and storage reading means for storing and reading the music signal from the input means. Switching means for turning on / off the music signal output from the storage / reading means; signal addition means for adding the music signal input from the input means to the music signal output from the switching means; And a signal level comparing means for comparing a signal level of a low frequency component of the music signal input to the input means with a predetermined reference signal level. ,
When the signal level of the low frequency component of the music signal input to the input means is lower than the reference signal level, the signal level comparing means stops storing the music signal in the storage reading means, and the storage reading means And a music appreciation chair for controlling the storage and reading means and the switching means so as to repeatedly and continuously read the music signal stored in the input means and to add the music signal to the low frequency component of the music signal input to the input means.

According to a fourth aspect of the present invention, there is provided a music appreciation chair, comprising: input means for inputting a music signal from a multi-channel reproducing means; and storage and reading means for storing and reading the music signal from the input means. Signal addition means for adding the music signal input from the input means and the music signal output from the storage and reading means, vibration generation means for generating vibration by a signal output from the signal addition means, Signal level comparing means for comparing the signal level of the low frequency component of the music signal input to the means with a predetermined reference signal level, wherein the signal level of the low frequency component of the music signal input to the input means is When the signal level is lower than the reference signal level,
The storage of the music signal in the storage and reading means is stopped, and the music signal stored in the storage and reading means is repeatedly and continuously read out and added to the low frequency component of the music signal input to the input means. This is a music appreciation chair that controls a reading unit.

According to the present invention, even when the vibration unit 10 is driven in synchronization with a music signal, the vibration unit 10 is continuously vibrated without impairing the sense of reality of multi-channel music, and The massage effect is enhanced, and a music appreciation chair with high relaxation can be obtained.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A case where a first embodiment of a music appreciation chair according to the present invention is applied to a multi-channel reproduction system will be described below with reference to FIGS.

FIG. 1 shows a multi-channel reproducing apparatus.
A case where a music signal is output as 5.1 channels using a DVD as a recording medium will be described.

Although not shown, the multi-channel reproducing apparatus 1 reproduces a DVD as a recording medium and
D recorded on the multi-channel music signal (Multi
MCAS below Channel Audio Signal
It is written. ), A digital surround decoder, a power amplifier for driving a 5.1 channel speaker, and a system controller such as a microcomputer for controlling the DVD reproducer and the digital surround decoder.

From the multi-channel reproducing apparatus 1, CS3 and FLS2 and FRS4 arranged on the front face and right and left opposite to the user 16 of the music appreciation chair 7;
LS5 and RS6 arranged on the left and right sides of the vehicle and user 1
6. The MCAS is supplied to the RC 12 disposed on the back side of the M.6.

A vibration unit 10 for vibrating the seat 7a and the reclining seat 7b at a low frequency is provided on the bottom surface of the seat 7a and the back surface of the reclining seat 7b, which constitute the music appreciation chair 7 indicated by a broken line. It is arranged at a position almost directly behind the left and right earlobes when the user 16 sits on the seat 7a on the upper back surface of 7b.

The chair 7 for listening to music is provided with first and second input terminals 8 and 9.

A first input terminal 8 is supplied with a rear channel signal of the MCAS from the multi-channel reproducing apparatus 1, and a second input terminal 9 is provided with a predetermined 5 + 1 channel signal excluding the rear channel signal of the MCAS. For example, a center channel signal is supplied.

The first input terminal 8 is connected to input terminals of a low-pass filter (LPF) 13 for extracting a low-frequency component signal and an RC 12.

The output of LPF 13 is connected to the input of amplifier 14, and the output of amplifier 14 is connected to the first input of adder 15.

The second input terminal 9 is connected to a low-pass filter (LPF) 17 for extracting a low-frequency component signal.

The output terminal of the LPF 17 is connected to the input terminal of the amplifier 18, and the output terminal of the amplifier 18 is connected to the second input terminal of the adder 15 via a signal switching circuit 19 such as a switch.

The signals supplied to the first and second input terminals of the adder 15 are added together. The output terminal of the adder 15 is connected to the vibration unit drive circuit 11, and the output terminal of the vibration unit drive circuit 11 is connected to the vibration unit 10.

Reference numeral 20 denotes a signal level comparator, and LPF1
3 is constantly monitored, and when the low frequency component signal from the LPF 13 falls below a predetermined reference level Vref, the signal switching circuit 19 is controlled to be turned on.
Therefore, even if the signal level comparator 20 is a hardware-configured signal level comparator, the microcomputer (CP
The comparator of software configured in U) may be used.

The operation of the music appreciation chair 7 having the above-described hardware configuration will be described below.

Now, the DVD of the multi-channel reproducing apparatus 1
Driving the playback unit to set the CS of the multi-channel speaker
3, when a surround music signal is emitted from FLS2, FRS4, LS5, RS6, and RC12, MCA
The S rear channel signal is input to the first input terminal 8, and drives the RC12.

The increase / decrease of the low frequency component signal in the rear channel signal corresponds to the increase / decrease of the low frequency component extracted from the LPF 13, and after being amplified by the amplifier 14, the signal is transmitted to the vibration unit drive circuit 11 via the adder 15. Supplied. The vibration unit drive circuit 11 causes the vibration unit 10 to vibrate according to the low frequency component signal.

As described above, the level of the low frequency component signal extracted by the LPF 13 is constantly monitored by the signal level comparator 20.

On the other hand, for example, a center channel signal is supplied to the second input terminal 9, a low-frequency component in the center channel signal is extracted by the LPF 17, amplified by the amplifier 18, and added through the signal switching circuit 19 via the signal switching circuit 19. 15 is supplied. The signal switching circuit 19 is controlled by a signal level comparator 20.

The signal level comparator 20 compares the level Vrear of the low frequency component of the rear channel output signal during the emission of the surround music signal with a predetermined reference level Vref, and the low frequency component level Vrear becomes higher than the reference level Vref. When it becomes smaller, the signal level comparator 20 outputs a switching signal.

The output terminal of the signal level comparator 20 is connected to the control input terminal of the signal switching circuit 19, and when a switching signal is output from the signal level comparator 20, the signal switching circuit 19
Is controlled to be "ON", and when the switching signal is not output, the signal transmission line is turned "OFF" and the low frequency component signal of the center channel signal is supplied to the second input terminal of the adder 15. Not supplied.

In the above description of the operation, the signal level comparator 20
Is a hardware configuration. FIG. 2 shows a flowchart in the case where the signal level comparator 20 is processed by software using the CPU as a CPU.

[0038] In FIG. 2, the operation of the music appreciation chair is started, CPU 20, as shown in the first step ST _1, the signal level Vrear the low frequency components of the music signal outputted from the rear channels, A comparison is made with a predetermined reference level Vref.

Next, CPU 20 determines whether or not Vrear in the second step ST ₂ is smaller than the Vref.

If the second step ST ₂ is NO, the CP
The output of the switching signal from U20 is stopped, and the third step S
The signal transmission line of the signal switching circuit 19 is turned off as in T3.

[0041] In a fourth step ST ₄ inputs only signal of low frequency components of the music signal outputted from the rear channels to the vibration unit driving circuit 11 generates a low-frequency vibration by driving the vibration unit 10.

When the second step ST ₂ is YES, that is, when Vrear becomes smaller than Vref, the fifth step S 2
In T _5, and outputs a switching signal from the CPU 20, the signal transmission line of the signal switching circuit 19 to "ON".

[0043] Therefore, the sixth step the low frequency component signal and adding to the vibration unit drive circuit of the output music signals from the center channel signal of the low frequency components of the music signal outputted ST ₆ in the rear channels 11 to drive the vibration unit 10 to generate low-frequency vibration.

In the above embodiment, the second input terminal 9
Although the center channel signal was supplied as a signal containing a low-frequency component signal sufficiently input from the
2. MCAS added to any of the speakers supplied to FRS4, LS5, RS6, or a combination of these speakers
Or a music signal containing another low frequency component signal.

Next, a description will be given of a second embodiment of the music appreciation chair according to the present invention. FIG. 3 is a diagram showing a configuration when the second embodiment is applied to a multi-channel reproduction system. In the second embodiment shown in FIG. 3, the input terminal 9 is deleted from the music appreciation chair 7 of the first embodiment shown in FIG.
/ D (analog / digital) converter 21, memory 22,
A D / A (digital / analog) converter 23 and a timing circuit 24 are added. In FIG. 3, FIG.
The components having the same numbers shown by are the same and will not be described.

The A / D converter 21 converts the rear-channel music signal input from the input terminal 8 into a low-frequency analog signal output via the LPF 13 into digital audio data.

The memory 22 sequentially stores the audio data output from the A / D converter 21 in chronological order, and outputs the audio data stored first in order. The operation of stopping the storage of the audio data in the memory 22 is controlled by a signal output from the signal level comparator 20.

The D / A converter 23 converts the audio data output from the memory 22 into an analog music signal. The music signal output from the D / A converter 23 is input to the amplifier 18 and passes through the signal switch 19 to the amplifier 1.
4 is added to the music signal output from the adder 15.
When the signal switch 19 is off, the D / A converter 23
Is not transmitted via the signal switch 19, and is not added to the music signal output from the amplifier 14.

The timing circuit 24 includes the A / D converter 2
1. Output to the D / A converter 23 and the memory 22 timing signals such as a sampling clock for sampling an audio signal, a clock for writing / reading audio data to / from the memory 22, and a system clock.

The output terminal of the adder 15 is connected to the vibration unit drive circuit 11, and the output terminal of the vibration unit drive circuit 11 is connected to the vibration unit 10.

The signal level comparator 20 constantly monitors the output signal from the LPF 13, and when the low frequency component signal from the LPF 13 is higher than a predetermined reference level Vref, the signal switching circuit 19 is turned off. The audio data output from the D / A converter 21 is stored in the memory 22.
Is controlled so as to be stored in chronological order. Memory 2
The amount of audio data stored in 2 is 10
Audio data stored before this time is erased, so that new audio data is always stored.

When the low frequency component signal from the LPF 13 becomes lower than a predetermined reference level Vref, a control signal is output from the signal switching circuit 19 to the memory 22 and the storage of audio data in the memory 22 is stopped. The audio data stored in the memory 22 is read out in the order in which it was stored. When the audio data stored last is read out, the audio data is returned to the previously stored audio data and read out again, and stored in the memory 22. The output audio data is repeatedly and continuously output to the D / A converter 23. Here, the signal level comparator 20 may be a microcomputer (C
PU) may be a software comparator.

The detailed operation of the music appreciation chair 7 of the second embodiment when the signal level comparator 20 is a hardware-structured signal level comparator will be described.

Now, the DVD of the multi-channel reproducing apparatus 1
Driving the playback unit to set the CS of the multi-channel speaker
3, when a surround music signal is emitted from FLS2, FRS4, LS5, RS6, and RC12, MCA
The S rear channel signal is input to the first input terminal 8, and drives the RC12.

The increase / decrease of the low frequency component signal in the rear channel signal corresponds to the increase / decrease of the low frequency component extracted from the LPF 13, and is amplified by the amplifier 14 and then added to the vibration unit drive circuit 11 via the adder 15. Supplied. The vibration unit drive circuit 11 causes the vibration unit 10 to vibrate according to the low frequency component signal.

As described above, the level of the low frequency component signal extracted by the LPF 13 is constantly monitored by the signal level comparator 20.

On the other hand, the A / D converter 21 has an input terminal 8
The signal of the low frequency component extracted by passing the music signal of the rear channel input from the LPF 13 through the LPF 13 is input. Audio data output from the A / D converter 21 is stored in the memory 22 in chronological order. The memory 22 converts the stored audio data into a D / A converter 23.
And the D / A converter 23 converts the audio data to D / A
The signal is A-converted, and the output signal is amplified by the amplifier 18 and supplied to the adder 15 via the signal switching circuit 19. The signal switching circuit 19 is controlled by a signal output from the signal level comparator 20.

The signal level comparator 20 compares the level Vrear of the low frequency component of the rear channel output signal during the sound output of the surround music signal with a predetermined reference level Vref, and the low frequency component level Vrear becomes higher than the reference level Vref. When it becomes smaller, the signal level comparator 20 outputs a switching signal.

The output terminal of the signal level comparator 20 is connected to the control input terminal of the signal switching circuit 19 and the control input terminal of the memory 22. When the switching signal is not output from the signal level comparator 20, the signal switching circuit is output. The 19 signal transmission lines are controlled to be turned off, and the memory 22 is controlled to store audio data output from the D / A converter 21. When the switching signal is output, the signal transmission line is turned on, and the memory 22 stops storing the audio data, and repeatedly outputs the stored audio data to the D / A converter 23 continuously. Is controlled.

In the above description of the operation, the signal level comparator 20
Is a hardware configuration, and FIG. 4 shows a flowchart in a case where the signal level comparator 20 is processed by software using the CPU as a CPU.

In FIG. 4, when the operation of the music appreciation chair 7 is started, the CPU 20 sets the
The signal level Vrear of the low frequency component of the music signal output from the rear channel is compared with a predetermined reference level Vref.

Next, in ST102, the CPU 20 determines whether or not Vrear is smaller than Vref.

If NO in step ST102, the output of the switching signal from CPU 20 is stopped, and
As shown in 3, the signal transmission line of the signal switching circuit 19 is turned off and the output data from the A / D converter 21 is kept stored in the memory 22.

In ST104, only the low frequency component signal of the music signal output from the rear channel is input to the vibration unit drive circuit 11, and the vibration unit 10 is driven to generate low frequency vibration.

In the case of YES in ST102, that is, V
When rear becomes smaller than Vref, a switching signal is output from the CPU 20 in ST105, and the signal switching circuit 1
9 is turned on, the storage of audio data in the memory 22 is stopped, and the stored audio data is repeatedly read out and continuously output to the D / A converter 23. . A music signal is output from the D / A converter 23 to the amplifier 18.

In ST106, the signal from the D / A converter 23 for repeatedly reading out the audio data stored in the memory 22 and continuously reproducing it is added to the low frequency component signal of the music signal output from the rear channel. The sum is input to the vibration unit drive circuit 11, and the vibration unit 10 is driven to generate low frequency vibration.

Next, a third embodiment of the chair for listening to music of the present invention will be described. FIG. 5 is a diagram showing a configuration when the third embodiment is applied to a multi-channel reproduction system. In the third embodiment shown in FIG. 5, the signal switching unit 19 is deleted from the music appreciation chair 7 of the second embodiment.
The components having the same numbers shown in FIG. 3 are the same and will not be described.

In FIG. 5, the signal level comparator 20 controls only the memory 22, and the output of the D / A converter 23 is always connected to the adder 15. A /
While the audio data output from the D converter 21 is stored, the audio data stored earlier from the memory 22 is controlled to be read out in chronological order, and the read out audio data is converted into analog music by the D / A converter 23. The vibration unit 10 is converted into a signal and added to the music signal of the rear channel to vibrate the vibration unit 10. Since different music signals are constantly added, a vibration cycle becomes short and a vibration having a large amplitude can be obtained. For this reason, it is possible to further enhance the massage effect of the music appreciation chair.

When audio data output from the A / D converter 21 is stored in the memory 22,
If the memory 22 is controlled so that the audio data is not output from the memory 22, the same vibration as in the second embodiment can be obtained.

In the above-described second and third embodiments, even if the reproduction of the multi-channel reproducing device 1 is completed and there is no music signal input to the music appreciation chair 7, the audio of the same music stored in the memory 22 According to the data, the vibration unit 10 can continuously generate vibration. For this reason, the massage is continued and the massage effect can be further improved.

[0071]

According to the music appreciation chair of the present invention, since the rear channel music signal output from the multi-channel reproducing device originally lacks the low frequency component signal, the vibration unit generates a sufficient low frequency vibration. If you ca n’t,
A music signal such as a center channel signal sufficiently containing a low-frequency component signal is input, and the switching circuit is switched and controlled, so that the low-frequency component of the center channel signal is added to the low-frequency component of the rear channel music signal. Is added and input to the vibration unit drive circuit, it is possible to compensate for the lack of low-frequency vibration of the vibration unit. As a result, the vibrating unit is continuously vibrated without losing the presence of the multi-channel sound field, and the massage effect for the user is provided.
A chair for music appreciation that can enhance relaxation can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a configuration of an embodiment of a music appreciation chair according to the present invention.

FIG. 2 is a flowchart for explaining the operation of one embodiment of the music appreciation chair of the present invention.

FIG. 3 is an explanatory diagram showing a configuration of a second embodiment of the music appreciation chair of the present invention.

FIG. 4 is a flowchart illustrating the operation of a second embodiment of the music appreciation chair according to the present invention.

FIG. 5 is an explanatory diagram showing a configuration of a third embodiment of a music appreciation chair according to the present invention.

FIG. 6 is an explanatory view showing a configuration of a conventional music appreciation chair.

[Explanation of symbols]

1 multi-channel playback device, 7 music chair, 8, 9 input terminal, 10 vibration unit, 1
1 ‥‥ vibration unit drive circuit, 12 ‥‥ rear channel speaker (RC), 14, 18 ‥‥ amplifier, 13 ‥
{Low-pass filter (LPF), 15} Adder, 19
{Signal switching circuit, 20} Signal level comparator (CP
U), 21 ‥‥ A / D converter, 22 ‥‥ memory, 2
3 ‥‥ D / A converter, 24 ‥‥ timing circuit

Claims (4)

[Claims] 1. A music appreciation chair for appreciating a music signal from a multi-channel reproduction means, wherein the first input means inputs a first-channel music signal from the multi-channel reproduction means, and a second channel. A second input means for inputting a music signal, a switching means for turning on / off the music signal input to the second input means, a music signal input from the first input means, Signal adding means for adding the output music signal, vibration generating means for generating vibration by the signal output from the signal adding means, and a signal level of a low frequency component of the first channel music signal, which is predetermined. Signal level comparing means for comparing the signal level of the low frequency component of the first channel music signal with the reference signal level. The signal level comparing means is provided in the first
And controlling the switching means so as to add the low frequency component of the second channel music signal to the low frequency component of the channel music signal. 2. The music according to claim 1, wherein the first channel music signal is a rear channel signal, and the second channel music signal is a signal of another channel except the rear channel signal. Viewing chair. 3. A music appreciation chair for appreciating a music signal from a multi-channel reproduction means, wherein the input means inputs a music signal from the multi-channel reproduction means, and the music signal from the input means is stored and stored. Storage and reading means for reading out the music signal output from the storage means, switching means for turning on and off the music signal output from the storage and reading means, and adding the music signal input from the input means and the music signal output from the switching means. Signal adding means, a vibration generating means for generating vibration by a signal output from the signal adding means, and a signal level of a low frequency component of a music signal input to the input means and a predetermined reference signal level. Signal level comparing means for comparing, wherein the signal level of the low frequency component of the music signal input to the input means is lower than the reference signal level. When the signal level comparing means stops storing the music signal in the storage reading means, the music signal stored in the storage reading means is repeatedly and continuously read, and the music signal inputted to the input means is repeatedly read out. A music appreciation chair, wherein the storage reading means and the switching means are controlled so as to be added to a low frequency component. 4. A music appreciation chair for appreciating a music signal from a multi-channel reproducing means, wherein the input means inputs a music signal from the multi-channel reproducing means, and the music signal from the input means is stored and stored. Storage and reading means for reading out the music signal obtained from the input means, signal addition means for adding the music signal input from the input means and the music signal output from the storage and reading means, and vibration caused by the signal output from the signal addition means. A music signal input to the input means, comprising: a vibration generating means for generating the signal; and a signal level comparing means for comparing a signal level of a low frequency component of the music signal input to the input means with a predetermined reference signal level. When the signal level of the low-frequency component is lower than the reference signal level, the signal level comparing means transmits the music signal to the storage and reading means. Controlling the storage and reading means so as to stop storing the signal and repeatedly and continuously read out the music signal stored in the storage and reading means and add the music signal to the low frequency component of the music signal input to the input means. A chair for listening to music.