JPH1043075A - Sound volume adjusting device for sound output apparatus, and hot water supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically adjust the sound volume of a sound of a sound output apparatus appropriately by providing a detecting means which detects the usage of the apparatus to generate sounds, and a control means to increase/decrease the sound volume of the sound based on the detection output. SOLUTION: On a hot water supply path 21 to introduce hot water of which the temperature has been raised from a hot water supply apparatus 2 to a water faucet 11, a flow rate sensor 62 to detect the hot water supply amount, is provided on the upstream side. A television device 3b is equipped with a sound output unit 34 to output the sound of the television, and a sound increasing/decreasing apparatus 36 which increases/decreases the volume of the sound in a plurality of steps. In addition, a sound volume control circuit (not shown in the illustration) in order to automatically increase/decrease the sound volume based on the detected flow rate of the flow rate sensor 62, is provided. The sound volume control circuit increases/decreases the sound volume step of the sound increasing/decreasing apparatus 36 based on the supply amount of the hot water to a bathroom 1, which is fed through the water faucet 11, and increases/decreases the output sound volume from the sound output unit 34. Therefore, the volume of the sound is appropriately increased/decreased to the volume of the sound which generates due to the supply of the hot water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound volume control device for a sound output device, and more particularly to a sound volume control device for controlling a sound volume of a sound output device for outputting a sound in a bathroom. The present invention relates to a hot water supply apparatus, and more particularly to a hot water supply apparatus provided with the volume control device.

[0002]

2. Description of the Related Art FIG. 7 is an explanatory view of a conventional hot water supply device (100). The conventional water heater (100) shown in FIG.
A water heater (2) that can supply hot water to (1) and an operation device (3) that is installed in the bathroom (1) and that can remotely control the water heater (2) are provided.

The operating device (3) includes a television device (9) capable of displaying an image of a television broadcast and outputting audio of the television broadcast. The television device (9) is provided with a volume increase / decrease switch (99) capable of instructing an increase / decrease of the volume of the sound by operation.

[0004]

At the time of bathing, there is a case where the faucet (11) of the bathroom (1) is opened after setting the volume of the sound by operating the volume increase / decrease switch (99). In this case, since the sound of hot water flowing out of the faucet of the faucet (11) or the shower head and the sound of the hot water hitting the floor of the bathroom (1) are generated, the sound from the television device (9) is difficult to hear. Become.

[0005] For this reason, in order to hear the voice satisfactorily, it is necessary to operate the volume increase / decrease switch (99) again to adjust the volume of the voice, which is troublesome. In particular, when using a shower, etc., because you are washing your body,
The operation becomes even more troublesome. It is an object of the present invention to provide a sound volume control device for a sound output device that can appropriately and automatically adjust the sound volume of the sound of the sound output device.

It is an object of the present invention to provide a water heater capable of appropriately and automatically adjusting the sound volume of a sound output from a sound output device.

[0007]

Means for Solving the Problems An object of the present invention is to provide a device capable of adjusting the volume of the sound in a sound output device for outputting a sound in a bathroom. And a control means for increasing or decreasing the volume of the sound based on the detection output of the detection means. "

When the appliance is used, a sound is generated in the bathroom. However, the use of the appliance is detected by the detection unit, and the control unit outputs the sound based on the detection output of the detection unit. The volume is increased or decreased. here,
As in the second aspect of the present invention, "the appliance may include a faucet provided in the bathroom and capable of supplying hot water to the bathroom". In this case, a sound is generated in the bathroom due to the supply of hot water to the bathroom by the faucet.

According to a third aspect of the present invention, "the detecting means detects opening and closing of the faucet, and the control means responds to the detected opening of the faucet. Increasing the volume of the voice and reducing the volume of the voice in response to the detected effect of closing the valve '', when the faucet is opened, the volume of the voice increases, When the faucet is closed, the volume of the sound decreases.

According to a fourth aspect of the present invention, "the detecting means detects a supply amount of hot and cold water supplied through the faucet, and the control means detects a supply amount of hot water based on the detected supply amount. In “increase or decrease the volume of the sound”, the volume of the sound is increased or decreased based on the supply amount of hot water supplied through the faucet. According to a fourth aspect of the present invention, as in the fifth aspect, the control means increases the sound volume of the sound when the supply amount is larger than a predetermined amount, and after the increase, When the supply amount becomes smaller than a predetermined amount, the volume of the sound is returned to the volume before the increase. " In this case, when the supply amount becomes larger than a predetermined amount, the volume of the sound increases, and thereafter,
When the supply amount becomes smaller than a predetermined amount, the volume of the sound returns to the volume before the increase. The former predetermined amount and the latter predetermined amount may be the same amount or different amounts.

According to a sixth aspect of the present invention, there is provided an apparatus for adjusting the volume of a sound in an audio output device for outputting a sound in a bathroom, the apparatus including the sound generated in the bathroom. A detecting means for detecting the sound volume of the sound, and a control means for increasing or decreasing the sound volume of the sound based on a detection output of the detecting means. "

In this case, the sound volume of the sound including the sound generated in the bathroom is detected by the detection means. Then, the volume of the sound is increased or decreased by the control means based on the detection output of the detection means. According to a sixth aspect of the present invention, as in the seventh aspect of the present invention, "the control means determines the volume of the sound based on a difference between a detection output value of the detection means and a set value of the volume of the sound. Is increased or decreased, the volume of the sound is increased or decreased based on the difference, that is, the volume of a sound generated in the bathroom other than the sound.

According to a seventh aspect of the present invention, as in the eighth aspect, the control means increases the volume of the sound when the difference value is larger than a predetermined value, and When the value of the difference becomes smaller than a predetermined value after the increase, the sound volume of the sound is returned to the volume before the increase.), The sound volume of the sound increases when the value of the difference becomes larger than a predetermined value. Thereafter, when the value of the difference becomes smaller than a predetermined value, the volume of the sound returns to the volume before the increase. The former predetermined value and the latter predetermined value may be the same value or different values.

According to a ninth aspect of the present invention, the apparatus may further comprise "operation means capable of instructing an increase or decrease in the volume of the voice by an operation". As in the invention of claim 10, "the audio output device is provided in an operating device installed in the bathroom and capable of remotely controlling a water heater". Means for solving the problems of the invention according to claim 11 include: a water heater capable of supplying hot water to a bathroom, an operation device installed in the bathroom and capable of remotely controlling the water heater, and a sound provided in the operation device and outputting sound in the bathroom. A water heater comprising: a sound output device for outputting; and a sound increasing / decreasing device capable of increasing / decreasing a volume of the sound in the sound output device, wherein a detecting means for detecting use of an appliance generating sound in the bathroom. And control means for controlling the voice adjuster so as to increase or decrease the volume of the voice based on the detection output of the detection means. "

This embodiment has the same effect as the first aspect of the present invention. Means for solving the problems of the twelfth aspect of the present invention are: a water heater capable of supplying hot water to a bathroom, an operation device installed in the bathroom and capable of remotely controlling the water heater, and a sound provided in the operation device and outputting sound in the bathroom. An audio output device for outputting, and a water heater that includes an audio adjuster that can increase and decrease the volume of the audio in the audio output device, and detects a volume of a sound including the audio generated in the bathroom. Detecting means, and control means for controlling the sound increasing / decreasing device so as to increase or decrease the volume of the sound based on the detection output of the detecting means. "

In this case, the same operation as that of the sixth aspect of the invention is provided.

[0017]

As described above, according to the first aspect of the present invention, when the appliance is used, a sound is generated in the bathroom. Thereby, since the volume of the sound of the audio output device is increased or decreased based on the use of the appliance, the volume of the audio can be appropriately and automatically adjusted.

Therefore, the sound can be satisfactorily heard without using the above-described conventional operation when using the appliance. Further, since the use of the appliance is detected, the detection for controlling the increase / decrease is simplified.
According to the invention of claim 2, since the on-off valve of the faucet in the bathroom is detected, the detection is simplified.

According to the third aspect of the present invention, since the volume of the voice is increased by opening the faucet and the volume of the voice is decreased by closing the faucet, the increase / decrease control is simplified. . In the invention according to claim 4, since the volume of the sound is increased or decreased based on the supply amount of the hot water supplied through the faucet, the increase or decrease in the volume of the sound generated by the supply of the hot water is more appropriate. It will be.

According to the fifth aspect of the present invention, when the volume of the sound generated by the supply of the hot and cold water is smaller than a predetermined value, the volume of the sound does not increase, and excessive adjustment of the volume of the sound is suppressed. In the invention of claim 6, the volume of the sound including the sound generated in the bathroom is detected, and the volume of the sound is increased or decreased based on the volume of the sound. This makes it possible to appropriately and automatically adjust the volume of the sound. Therefore,
The sound can be heard well without performing the operation as described in the related art.

Further, the increase or decrease is based on the sound generated in the bathroom, so that the increase or decrease is appropriate. According to the invention of claim 7, since the volume of the sound is increased or decreased based on the volume of a sound generated in the bathroom other than the audio, the increase or decrease becomes more appropriate. In the invention of claim 8, when the volume of a sound generated other than the voice is smaller than a predetermined value, the volume of the voice does not increase, and excessive adjustment of the volume of the voice is suppressed.

According to the ninth aspect of the present invention, the volume of the voice can be increased or decreased by manual operation in addition to the automatic adjustment. According to the eleventh aspect, the same effects as those of the first aspect can be obtained. According to the twelfth aspect, the same effect as that of the sixth aspect is obtained.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. [Embodiment 1] FIG. 1 is an explanatory view of a hot water supply device (100) according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view of an operating device (3) of FIG.

As shown in FIG. 1, a water heater (100) is provided with a water heater (2) capable of supplying water to a bathroom (1), and is installed on a wall surface of the bathroom (1) and can remotely control the water heater (2). And an operation device (3). The bathroom (1) is provided with a bathtub (10) and a faucet (11), and the faucet (11) is provided with a faucet (11a) and a shower (11b). [Regarding Configuration of Each Part] * Hot water heater (2) * Known water heater (2) is employed.
The water heater (2) has a first hot water supply path (21) for guiding hot water heated by gas combustion to the faucet (11), and a branch from the first hot water supply path (21). A second hot water supply path (22) for guiding the heated water to a place other than a bathroom such as a kitchen, and a third hot water supply path (22) for guiding the heated water to a bathtub (10).
A hot water supply path (23) is provided.

A flow sensor (62) for detecting the amount of hot water to be supplied is provided upstream of the branch of the second hot water supply path (22) in the first hot water supply path (21). Furthermore, this water heater
(2) is provided with a control circuit (5) for controlling the hot water supply operation based on an instruction from the operating device (3). An operating device (3) described later is electrically connected to the control circuit (5).
Signals are transmitted bidirectionally between the control circuit (5) and the operating device (3). The operating device (3) is supplied with power via a control circuit (5). Further, the detection output of the flow sensor (62) is sent to the operating device (3) via the control circuit (5).

* Operating device (3) * Operating device (3), as shown in FIG. 2, includes a first remote controller (3a) for remote control and a television broadcasting image display device. And a television device (3b) capable of outputting the audio. The first remote control device (3a) is formed in a rectangular parallelepiped shape, and a front portion of the first remote control device (3a) includes:
A hot water supply operation unit (31) composed of a plurality of switches and the like for the remote operation, and contents of instructions and a water heater (2) by the remote operation
Hot water supply display (3)
2) is provided.

The first remote control device (3a) sets the temperature of hot water supplied via the faucet (11), necessity of automatic hot water filling in the bathtub (10), The configuration is such that the setting of the hot water temperature and the amount of hot water can be instructed. The first remote control device (3a) operates the operation of the operation switch (311) provided in the hot water supply operation section (31) to operate the water heater (2) and the operation device.
(3) can be turned on and off.

The water heater (100) is also provided with a second remote controller (3c) installed on the wall of the kitchen, and the second remote controller (3c) can remotely control the water heater (2). By operating the priority switch (312) provided in the hot water supply operation section (31) of the first remote controller (3a), the first remote controller (3a) is operated.
Is prioritized over the second remote controller (3c).

The television device (3b) comprises a rectangular parallelepiped main body (30a) and a flat rectangular parallelepiped mounting base (30b) extending downward from the main body (30a). ), A first remote control device (3a) is detachably fixed to the front surface. The main unit (30a) includes a display unit (35) capable of displaying television broadcast images in color in liquid crystal, an audio output unit (34) capable of outputting audio of the television broadcast, and an operation of the television device (3b). And a sound adjuster (36) that can increase or decrease the volume of the sound in the sound output unit (34). The operation unit (33) includes a power switch (330) for turning on / off the power of the television device (3b), and a volume increase / decrease switch (331) for instructing an increase or decrease of the sound. Is provided.

The voice adjuster (36) is configured to increase or decrease the volume of the voice in a plurality of steps. The volume step (volume step (41)) that is increased or decreased by the voice adjuster (36) is different from the volume step (setting step (42)) set by the volume increase / decrease switch (331). The configuration is basically the same.

Further, the television apparatus (3b) has a volume control circuit (not shown) for automatically increasing or decreasing the volume step (41) based on the detected flow rate (63) of the flow rate sensor (62). ) Are provided. The volume control circuit includes a microcomputer (not shown), and the microcomputer stores a control program for the automatic adjustment.

[Regarding Automatic Volume Control] FIG. 3 is a flowchart of a control program stored in the microcomputer of the television device (3b). The automatic volume control of the sound of the television device (3b) will be described with reference to FIG.
The control program, when bathing, the television device (3b)
With the operation of the power switch (330), the television device (3b) starts in a state where it is turned on. When the above setting step (42) is set by operating the volume increase / decrease switch (331), the setting step (42)
The volume step (41) of the voice adjuster (36) is determined in the same step with respect to. Thereby, the volume of the sound output from the television device (3b) is set.

Then, the priority switch (312) is turned on.
(The first remote controller (3a) takes precedence.)
When the detected flow (63) of (62) is equal to or higher than the predetermined flow (steps (S71) (S72)), the faucet (11a) of the faucet (11) and the shower (11b) are used to enter the bathroom (1). In this case, the sound of hot water flowing out of the faucet section (11a) or the shower section (11b) and the sound of the hot water hitting the floor of the bathroom (1), etc. It occurs other than the sound of (3b). The sound generated other than the sound becomes larger as the supply amount of hot water supplied through the faucet (11) increases.

On the other hand, when the detected flow rate (63) is equal to or higher than the predetermined flow rate, the detected flow rate (63) is the third set flow rate (66) larger than the predetermined flow rate and the third set flow rate (66) larger than the third set flow rate (66). 2nd set flow (65), 1st set flow larger than 2nd set flow (65)
(64) (Steps (S73) (S74) (S75)
). When the detected flow rate (63) is equal to or higher than the first set flow rate (64) (first case), a sound generated in addition to the sound of the television device (3b) is also loud. In this case, the volume step (41) is performed in the setting step.
3 steps up to (42) (Steps (S73) (S7
6)). Thereby, the volume of the sound output from the television device (3b) is significantly increased.

When the detected flow rate (63) is smaller than the first set flow rate (64) and is equal to or larger than the second set flow rate (65) (second case), sound generated in addition to the sound of the television device (3b) is generated. Is smaller than the first case, but in this case, the volume step (41)
Is increased by two steps with respect to the setting step (42) (steps (S74) and (S77)). Thereby, the volume of the sound output from the television device (3b) is increased. Also, the sound volume is lower than in the first case.

Further, when the detected flow rate (63) is smaller than the second set flow rate (65) and is equal to or larger than the third set flow rate (65) (third case), sound generated in addition to the sound of the television device (3b) is generated. Is smaller than the second case, but in this case, the volume step (41)
Is increased by one step with respect to the setting step (42) (steps (S75) and (S78)). Thereby, the volume of the sound output from the television device (3b) is increased. Also, the sound volume is lower than in the second case.

When the detected flow rate (63) is smaller than the third set flow rate (66), the sound other than the sound of the television device (3b) is small, and the sound is generated by the sound generated by supplying hot water. Although there is little difficulty, in this case, the volume step (41) is set to be the same as the setting step (42) (step (S79)). Thus, the volume of the sound output from the television device (3b) is maintained at the initially set state.

The above steps (S73) to (S79) are repeated until the detected flow rate (63) becomes smaller than the predetermined flow rate. Thereby, the volume of the sound of the television device (3b) is automatically increased or decreased to a volume corresponding to the flow rate of the hot water flowing out of the faucet (11), that is, the volume of the sound generated by the outflow. Become. Therefore, when the bather enters the shower section (11
b) Even when the body is being washed with hot water, the sound can be heard well without operating the volume increase / decrease switch (331).

In this apparatus, the volume of the sound is increased or decreased based on the detected flow rate (63), that is, the amount of hot water supplied to the bathroom (1) supplied through the faucet (11). Therefore, the volume of the sound is appropriately increased or decreased with respect to the volume of the sound generated by the supply of the hot water. Further, when the detected flow rate (63) is smaller than the third set flow rate (66), the sound volume of the sound is maintained as originally set, so that excessive adjustment of the sound volume is suppressed.

Further, since the opening operation of the faucet (11) is detected by the flow rate sensor (62), the detection for controlling the increase / decrease is realized by a simple configuration. In this case, the bathroom (1) is the "bathroom" described in claims 1 and 11, and the water heater (2) is the "water heater" described in claim 11. The said faucet (11) is the "faucet" of the above-mentioned claim 2, and the "tool" of the above-mentioned claim 1.

The above-mentioned operating device (3) is the same as the above-mentioned claim 1.
The television device (3b) is an "operation device" according to claims 0 and 11, and the "audio output device" according to claims 1 and 11,
The voice adjuster (36) is the "voice adjuster" described in claim 11, and the volume increase / decrease switch (331) is the "operating means" described in claim 9. Further, the flow rate sensor (62) is the "detection means" according to claims 1, 4, and 11, and the control program is the aforementioned detection means.
11 corresponds to “control means”. [Second Embodiment] FIG. 4 is a flowchart of a control program according to a second embodiment.

The second embodiment is different from the first embodiment.
Only the control program in FIG. 4 is changed to that of FIG. In this embodiment, as in the first embodiment, when the priority switch (312) is turned on and the detected flow rate (63) is equal to or higher than the predetermined flow rate (step (S
80) (S81)), the hot water supplied from the faucet (11) to the bathroom (1) produces a sound other than the above sound.

At this time, the volume step (41) is increased by two steps from the setting step (42) (step (S82)). This increases the volume of the voice,
The inconvenience of making the sound difficult to hear is prevented.
Then, when the detected flow rate (63) becomes smaller than the predetermined flow rate, the sound volume step (41) is returned to the setting step (42) to be the same (steps (S83) and (S84)). Thereby, the sound volume of the sound is returned to the sound volume before the increase, and the problem that the sound volume of the sound is too high is prevented.

In this case, the volume of the voice is automatically increased or decreased so as to respond to the start and end of the generation of the sound due to the supply of hot water. Therefore, even when the bather is washing his / her body with hot water, the sound can be heard well without operating the volume increase / decrease switch (331).
Further, since the sound volume of the sound is increased by opening the faucet (11) and the sound volume of the sound is decreased by closing the faucet (11), the control is performed with a simple configuration. Has been realized.

In this case, the control program corresponds to "control means" according to the third aspect of the present invention. [Embodiment 3] Fig. 5 shows a hot water supply apparatus (10
FIG. 6 is a flowchart of a control program according to the third embodiment.

Although the third embodiment has basically the same configuration as the first embodiment, the hot water supply device (100) according to the third embodiment has a bathroom as shown in FIG. The microphone (13) installed on the wall of (1) is provided. The volume of the sound of the television device (3b) and the volume of the sound generated in the bathroom (1) in addition to the sound are detected by the microphone (13). This microphone (13) is an operating device
(3) It is electrically connected to the volume control circuit of the (television device (3b)).

The sound volume control circuit includes a microcomputer (not shown), and a control program for automatically adjusting the sound volume of the sound is stored in the microcomputer. In the volume control circuit, as shown in FIG. 6, a difference value (difference value (61)) between the detection output value of the microphone (13) and the setting step (42) is calculated.

In the control program, the difference value (6
1) is compared with a third set value (69), a second set value (68) larger than the third set value (69), and a first set value (67) larger than the second set value (68). (Steps (S85) (S86) (S87)). If the difference value (61) is equal to or greater than the first set value (67), the volume step (41) is raised by three steps with respect to the set step (42) (steps (S85) and (S88)). If (61) is smaller than the first set value (67) and is equal to or larger than the second set value (68), the volume step (41) is raised by two steps with respect to the set step (42) (step (S86) S89)), when the difference value (61) is smaller than the second set value (68) and equal to or larger than the third set value (69), the volume step (41) is increased by one step with respect to the set step (42). (Steps (S87) and (S90)). Further, the difference value (61) is the third set value.
If smaller than (69), the volume step (41) is set to be the same as the setting step (42) (step (S91)).

By repeating the above steps (S85) to (S91), the volume of the sound of the television device (3b) is automatically increased or decreased based on the volume of the sound generated in the bathroom (1). Become. Therefore, even when the bather is using hot water, the sound can be heard well without operating the volume increase / decrease switch (331). Further, since the volume of the sound is increased or decreased based on the sound generated in the bathroom (1), in addition to the case of using hot water in the faucet (11), for example, a bather can use the bathtub (10). ), The increase or decrease is appropriately performed even when the sound generated during the operation is loud. Also, the difference value
(61) That is, since the volume of the sound is increased or decreased based on the volume of a sound generated in the bathroom (1) other than the sound,
The increase or decrease is more appropriate.

Further, the volume of a sound generated in addition to the sound,
That is, when the difference value (61) is smaller than the third set value (69), the sound volume of the sound is maintained at the initially set state, so that excessive adjustment of the sound volume of the sound is suppressed. In this case, the microphone (13) is the "detection means" according to claims 6 and 12, and the control program is the "control means" according to claims 6, 7, 8, and 12. Is equivalent to [Other embodiments]. In the first and second embodiments, the volume of the sound is increased or decreased based on the presence or absence or the amount of hot water supplied to the bathroom (1) by the faucet (11). The amount may be increased or decreased based on the presence or absence or the supply amount of both hot water and water supplied to the bathroom (1) via 11). In this case, the bathroom
(1) A configuration including means for detecting the presence or absence or the supply amount of both hot water and water to be supplied can be adopted.

[0051] In the third embodiment, the volume of the sound is increased or decreased based on the difference value (61). However, the volume step (41) is directly determined based on the detection output value of the microphone (13). ) May be increased or decreased. . The above-mentioned "audio output device" is not limited to the television device (3b) as long as it outputs audio in the bathroom (1). For example, a radio device may be used.

[0052] The above-mentioned "apparatus" is not limited to the faucet (11) as long as it generates sound in the bathroom (1). For example, a foam generator provided in the bathtub (10) may be used. . The first hot water supply path (21) may be provided with means for detecting the presence or absence or supply amount of hot water flowing to the faucet (11). In this case, as in the first and second embodiments, the priority switch (31
Even if the state of 2) is not determined, it is possible to reliably recognize whether or not hot water is supplied to the faucet (11).

[Brief description of the drawings]

FIG. 1 shows a hot water supply device (10) according to a first embodiment of the present invention.
Illustration of (0)

FIG. 2 is a perspective view of the operation device (3) of FIG.

FIG. 3 is a flowchart of a control program stored in a microcomputer of the television device (3b).

FIG. 4 is a flowchart of a control program according to the second embodiment.

FIG. 5 is an explanatory view of a water heater (100) according to a third embodiment.

FIG. 6 is a flowchart of a control program according to a third embodiment.

FIG. 7 is an explanatory view of a conventional hot water supply device (100).

[Explanation of symbols]

 (1) ・ ・ ・ Bathroom (2) ・ ・ ・ Water heater (3) ・ ・ ・ Operating device (3b) ・ ・ ・ Television device (11) ・ ・ ・ Faucet (62) ・ ・ ・ Flow sensor

Claims (12)

[Claims] 1. A device capable of adjusting a volume of a sound in a sound output device for outputting a sound in a bathroom, wherein the detection means detects a use of a device that generates a sound in the bathroom, and the detection Control means for increasing or decreasing the volume of the sound based on the detection output of the means. 2. The volume control device for an audio output device according to claim 1, wherein the appliance includes a faucet provided in the bathroom and capable of supplying hot water to the bathroom. 3. The detecting means detects opening and closing of the faucet, and the control means increases the volume of the sound in response to the detected opening of the faucet, and 3. The volume control device for an audio output device according to claim 2, wherein the volume of the audio is reduced in response to the detected closing of the valve. 4. The apparatus according to claim 1, wherein said detecting means detects a supply amount of hot and cold water supplied through said faucet, and said control means increases or decreases the volume of said sound based on said detected supply amount. Item 3. A volume control device for an audio output device according to Item 2. 5. The control means increases the sound volume of the sound when the supply amount becomes larger than a predetermined amount, and increases the sound volume of the sound when the supply amount becomes smaller than the predetermined amount after the increase. 5 is returned to the volume before the increase.
A volume control device for an audio output device according to claim 1. 6. A device capable of adjusting a volume of the sound in an audio output device that outputs a sound in a bathroom, wherein a detection unit that detects a volume of a sound including the sound generated in the bathroom, Control means for increasing or decreasing the volume of the sound based on the detection output of the detection means; and a sound volume control device for a sound output device. 7. The volume control for an audio output device according to claim 6, wherein the control unit increases or decreases the volume of the audio based on a difference between a detection output value of the detection unit and a set value of the volume of the audio. apparatus. 8. The control means increases the volume of the voice when the value of the difference is larger than a predetermined value, and increases the sound volume when the value of the difference becomes smaller than a predetermined value after the increase. 8. The sound volume of the sound is returned to the sound volume before the increase.
A volume control device for an audio output device according to claim 1. 9. The volume control device for an audio output device according to claim 1, further comprising an operation unit capable of instructing an increase or a decrease in the volume of the audio by an operation. 10. The volume control device for an audio output device according to claim 1, wherein the audio output device is provided in an operation device installed in the bathroom and capable of remotely controlling a water heater. 11. A water heater that can supply hot water to a bathroom, an operation device that is installed in the bathroom and that can remotely control the water heater, and an audio output device that is provided in the operation device and outputs audio in the bathroom. A water heater comprising: a sound increasing / decreasing device capable of increasing / decreasing a volume of the sound in the sound output device, wherein: a detecting means for detecting use of an appliance generating a sound in the bathroom; and a detection by the detecting means. Control means for controlling the sound adjuster so as to increase or decrease the sound volume of the sound based on the output. 12. A water heater that can supply hot water to a bathroom, an operation device that is installed in the bathroom and that can remotely control the water heater, and an audio output device that is provided in the operation device and outputs audio in the bathroom. A water heater comprising: a sound adjuster that can increase or decrease the volume of the sound in the audio output device, wherein a detecting unit that detects a volume of a sound including the sound generated in the bathroom; and the detecting unit. Control means for controlling the sound adjuster so as to increase or decrease the volume of the sound based on the detection output of the water heater.