Sound image control device, sound image control system provided with the same, and sound image control program

Abstract

To provide a sound image control device, capable of controlling an operation sound, which is generated by a driver who operates a mobile body using an existing configuration, such that the driver can reliably hear the operation sound, a sound image control system provided with the same, and a sound image control program.SOLUTION: A DSP 10 includes an operation input unit 10a, an output control unit 10b, and an audio sound control unit 10c. The operation input unit 10a receives an input to the operation unit 11 of a passenger car 20. The output control unit 10b causes speakers 16a-16d provided in the passenger car 20 to output an operation sound in response to the input to the operation input unit 10a. The audio sound control unit 10c causes the speakers 16a-16d to output an audio sound of an audio device. When the operation input unit 10a receives the input to the operation unit 11 and the output control unit 10b outputs the operation sound from the speakers 16a-16d, the audio sound control unit 10c aligns a sound image with a position other than that of a driver of the passenger car 20 in a manner such that the driver does not easily hear the audio sound.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a sound image control device that is mounted on a moving body and controls the output of sound inside the moving body, a sound image control system including the same, and a sound image control program. [Background technology]

[0002] 2. Description of the Related Art In recent years, mobile objects such as passenger cars are equipped with operation devices that accept input operations for audio, air conditioning, and the like from a driver (operator). When an operator operates such an operating device without checking his / her hand while driving, the operating device may output an operating sound so that the operator can know that an operation input has been made. For example, Patent Document 1 discloses a switch device that is disposed on a steering wheel of a vehicle so that the directionality of sound emitted from the operation knob is strong toward the ears of the driver, who is one of the vehicle occupants. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-179096 A (Patent No. 6942013 A) Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned conventional switch device has the following problems. That is, the switch device disclosed in the above publication has a problem in that, in order to generate a stereoscopic sound image in the vehicle cabin, it is necessary to provide a separate speaker for emitting sound on the steering wheel or the like. The object of the present invention is to provide a sound image control device that can use an existing configuration in a moving body to control the operation sound operated by the driver so that the driver can reliably hear it, as well as a sound image control system and a sound image control program equipped with the same. [Means for solving the problem]

[0005] A sound image control device according to a first aspect of the present invention is a sound image control device mounted on a moving body and controlling the output of sound inside the moving body, and includes an operation input unit, an output control unit, and an audio sound control unit. The operation input unit accepts an input to an operation unit provided in the moving body. The output control unit outputs an operation sound from an output unit provided in the moving body in response to the input to the operation input unit. The audio sound control unit outputs audio sound from an audio device provided in the moving body from the output unit. When the operation input unit accepts an input to the operation unit and the output control unit outputs the operation sound, the audio sound control unit performs control to align a sound image to a position other than the driver so as to make the audio sound difficult to hear at the position of the driver's ears of the moving body.

[0006] Here, in order to ensure that the driver of a moving body such as a passenger car is able to recognize the operation sounds that are output when operating the audio, air conditioning, etc., when input is accepted into the operation unit and operation sounds are output, control is performed to align the sound image to a position other than the driver so that the audio sounds are difficult to hear at the position of the driver's ears. Here, the mobile objects include, for example, passenger cars, trucks, buses, trains, ships, airplanes, helicopters, and various attractions installed in facilities such as amusement parks.

[0007] The output unit provided in the moving object includes, for example, a plurality of speakers mounted in a passenger car or the like. The operating unit provided in the mobile object includes, for example, an operating unit for an air conditioner, audio equipment, etc. mounted in a passenger car or the like. The audio devices installed in the mobile object include, for example, a television, a music player, a playback device for DVDs and Blu-ray discs, and a display audio.

[0008] The operation sound of the operation unit is, for example, an electronically generated clicking sound, and includes sounds such as beeps, clicking, clanging, and tapping that are actually produced when operating a mechanical switch or the like. As a result, when a driver or the like operates an operating unit inside a moving body such as a passenger car, the sound image of the audio sound is controlled to be aligned with a position other than the driver (passengers, etc.) when the operation sound is output, making it difficult to hear the audio sound at the position of the driver's ears and easier to hear the operation sound. As a result, by using an existing configuration of the moving body, it is possible to control the operation sound operated by the driver so that the driver can reliably hear it.

[0009] The sound image control device of the second invention is the sound image control device of the first invention, wherein when the operation input unit accepts input to the operation unit, the output control unit performs control so as to align the sound image of the operation sound to the position of the driver's ears. This makes it possible to more effectively make it easier for the driver to hear the operation sounds by combining the control of shifting the audio sound from the above-mentioned audio equipment away from the position of the driver's ears with the control of aligning the sound image of the operation sounds to the position of the driver's ears.

[0010] A sound image control device according to a third aspect of the present invention is the sound image control device according to the second aspect of the present invention, wherein the output control unit controls at least one of the phase and amplitude of the sound output from the output unit to control the sound image of the operation sound. This makes it possible to precisely adjust the phase of the waveform emitted from multiple output units such as speakers, and / or to independently adjust the volume from each output unit, thereby concentrating the operation sound in a specific direction (such as the position of the driver's ears).

[0011] A sound image control device according to a fourth aspect of the present invention is a sound image control device according to the first or second aspect of the present invention, wherein the audio sound control unit controls at least one of the phase and amplitude of the sound output from the output unit to control the sound image of the audio sound. This makes it possible to precisely adjust the phase of the waveform emitted from multiple output units such as speakers, and / or to independently adjust the volume from each output unit, thereby concentrating the audio sound in a specific direction (such as a position other than the driver).

[0012] A sound image control device according to a fifth aspect of the present invention is a sound image control device according to the first or second aspect of the present invention, wherein when the operation input unit receives input to the operation unit, the audio sound control unit performs control so that a sound having a phase that cancels out the audio sound at the position of the driver's ears is output from the output unit. As a result, when the operating unit is operated, a sound having a phase that cancels out the audio sound at the position of the driver's ear is output from the output unit, so that the audio sound can be canceled as noise, allowing only the operating sound to be heard clearly.

[0013] A sound image control device according to a sixth aspect of the present invention is the sound image control device according to the fifth aspect of the present invention, further comprising an external sound detection unit that detects external sounds including audio sounds. The audio sound control unit performs control so that a sound having a phase that cancels out the external sound detected by the external sound detection unit is output from the output unit. As a result, when there is an input to the operating unit, a sound with a phase that cancels out external sounds, including audio sounds, is output, thereby canceling out unnecessary noise other than the operating sound, allowing the driver to clearly hear only the operating sound.

[0014] The sound image control device of the seventh invention is the sound image control device of the first or second invention, wherein when the operation input unit accepts input to the operation unit, the output control unit performs control so that a sound having a phase that cancels out the operation sound at the position of an ear other than the driver's ear is output from the output unit. As a result, when an input is made to the operating unit, a sound of a phase that cancels out the operating sound is output at the ear position of passengers other than the driver, so that the operating sound can be controlled so that only the driver can hear it.

[0015] A sound image control device according to an eighth aspect of the present invention is the sound image control device according to the first or second aspect of the present invention, further comprising a storage unit that stores a plurality of original sound data as operation sounds. As a result, multiple original sound data for operation sounds are stored in the storage unit, so that the driver or the like can select and use the operation sound that he or she likes.

[0016] A sound image control system according to a ninth aspect of the present invention includes the sound image control device according to the first or second aspect of the present invention, an operation unit provided on a moving object, and an output unit provided on the moving object. This provides the effect of enabling control using the existing configuration of the moving body so that the operation sound operated by the driver can be reliably heard by the driver.

[0017] A sound image control program according to a tenth aspect of the present invention is a sound image control program for controlling the output of sound inside a moving body, and causes a computer to execute a sound image method including an operation input step, an output control step, and an audio sound control step. In the operation input step, an input to an operation unit provided in the moving body is accepted. In the output control step, an operation sound is output from an output unit provided in the moving body in response to the input in the operation input step. In the audio sound control step, audio sound from an audio device provided in the moving body is output from the output unit. When an input to the operation unit is accepted in the operation input step and an operation sound is output in the output control step, in the audio sound control step, control is performed to align a sound image to a position other than the driver so that the audio sound is difficult to hear at the position of the driver's ears of the moving body.

[0018] Here, in order to ensure that the driver of a moving body such as a passenger car is able to recognize the operation sounds that are output when operating the audio, air conditioning, etc., when input is accepted into the operation unit and operation sounds are output, control is performed to align the sound image to a position other than the driver so that the audio sounds are difficult to hear at the position of the driver's ears. Here, the mobile objects include, for example, passenger cars, trucks, buses, trains, ships, airplanes, helicopters, and various attractions installed in facilities such as amusement parks.

[0019] The output unit provided in the moving object includes, for example, a plurality of speakers mounted in a passenger car or the like. The operating unit provided in the mobile object includes, for example, an operating unit for an air conditioner, audio equipment, etc. mounted in a passenger vehicle or the like. The operation sound of the operation unit is, for example, an electronically generated sound, and includes sounds such as beeps, clicking, clanging, and tapping that are actually generated when a mechanical switch or the like is operated.

[0020] As a result, when a driver or the like operates an operating unit inside a moving body such as a passenger car, the sound image of the audio sound is controlled to be aligned with a position other than the driver (passengers, etc.) when the operation sound is output, making it difficult to hear the audio sound at the position of the driver's ears and easier to hear the operation sound. As a result, by using an existing configuration of the moving body, it is possible to control the operation sound operated by the driver so that the driver can reliably hear it. Effect of the Invention

[0021] According to the sound image control device of the present invention, it is possible to use an existing configuration of a moving body and control the operation sound operated by the driver so that the operation sound is reliably heard by the driver. [Brief description of the drawings]

[0022] [Figure 1] 1 is a diagram showing the configuration of a sound image control system according to an embodiment of the present invention. [Diagram 2] 2 is a control block diagram showing the configuration of a DSP included in the sound image control system of FIG. 1. [Diagram 3] 2 is a conceptual diagram showing an example of sound image control in normal operation executed by the sound image control system of FIG. 1; [Figure 4] 2 is a conceptual diagram showing an example of sound image control executed by the sound image control system of FIG. 1; [Diagram 5] 2 is a conceptual diagram showing an example of sound image control executed by the sound image control system of FIG. 1; [Figure 6] 2 is a conceptual diagram showing an example of sound image control executed by the sound image control system of FIG. 1; [Figure 7] 2 is a conceptual diagram showing an example of sound image control executed by the sound image control system of FIG. 1; [Figure 8] FIG. 13 is a diagram showing the configuration of a sound image control system according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] A sound image control system 1 including a DSP (sound image control device) 10 according to one embodiment of the present invention will be described below with reference to FIGS. 1 to 7. FIG. In the present embodiment, more detailed explanations than necessary may be omitted. For example, detailed explanations of already well-known matters or duplicate explanations of substantially the same configurations may be omitted. This is to avoid the following explanation from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. Furthermore, the applicant provides the accompanying drawings and the following description so that those skilled in the art can fully understand the present invention, and they are not intended to limit the subject matter described in the claims.

[0024] (1) Configuration of sound image control system 1 The sound image control system 1 of this embodiment is a system mounted on a passenger vehicle (mobile body) 20 and controls the output of sound to the driver of the passenger vehicle 20 and to persons other than the driver, and as shown in FIG. 1, is equipped with a DSP (Digital Signal Processor) (sound image control device) 10, an operation unit 11, a sound information memory unit (memory unit) 12, a sound detection unit 13a, an amplifier unit 13b, a car audio (operation unit) 14, a plurality of amplifiers 15a, 15b, 15c, 15d, and a plurality of speakers (output units) 16a, 16b, 16c, 16d.

[0025] The operation unit 11 includes, for example, a temperature adjustment dial of an air conditioner mounted on the passenger vehicle 20, operation buttons of a driving assistance system, and the like. The sound information memory unit (memory unit) 12 stores original sound data of multiple types of sounds that are generated when actually operating a mechanical switch, etc., such as clicking sounds (clack, clank, tap) that are electronically generated when the operating unit 11 is operated.

[0026] Thereby, for example, by selecting and setting an operation sound that the driver likes, the original sound data can be converted from a digital signal to an analog signal and output from the speakers 16a to 16d. The original sound data of the operation sound is generated based on, for example, the sampling results of various sounds. The sound information storage unit 12 stores a plurality of original sound data capable of reproducing various sound waveforms, such as metallic sounds, dull sounds, soft sounds, etc., and the stored plurality of original sound data are linked to each type, such as metallic sounds, dull sounds, etc., and are also grouped as a library according to the preferences of the operator.

[0027] The sound detection unit 13a detects external sounds such as car audio sounds, driving sounds, and road noise in order to perform an active noise canceling process, which will be described later. The amplifier 13b amplifies the external sound detected by the sound detector 13a and transmits the amplified sound to the DSP 10. The car audio (operation unit) 14 is, for example, a television, a display audio, an audio player, or the like of a car navigation system mounted in a passenger vehicle, and volume and the like are adjusted by operation input from the driver or the like.

[0028] The amplifiers 15a, 15b, 15c, and 15d are provided for the four speakers 16a, 16b, 16c, and 16d, respectively, and amplify and output electrical signals representing sounds transmitted from the DSP 10 to the speakers 16a, 16b, 16c, and 16d. The speakers (output units) 16a, 16b, 16c, and 16d output audio sounds and operation sounds of the operation unit 11, the car audio 14, and the like, based on electrical signals transmitted from the DSP 10 and amplified by the amplifiers 15a, 15b, 15c, and 15d. The sounds output from the speakers 16a, 16b, 16c, and 16d are controlled by the DSP 10 so that they sound different to the people sitting in the driver's seat 21a, the passenger seat 21b, and the rear seats 21c and 21d of the passenger vehicle 20.

[0029] (2) Configuration of DSP (sound image control device) 10 As shown in Fig. 1, the DSP 10 according to this embodiment is connected to an operation unit 11, a sound information storage unit 12, a sound detection unit 13a via an amplifier unit 13b, and a car audio 14, and controls sounds output from speakers 16a, 16b, 16c, and 16d via amplifiers 15a, 15b, 15c, and 15d. As shown in Fig. 2, the DSP 10 has an operation input unit 10a, an output control unit 10b, an audio sound control unit 10c, and an external sound detection unit 10d.

[0030] The operation input unit 10 a receives input to an operation unit 11 provided in the passenger vehicle 20 . In response to an input to the operation input unit 10a, the output control unit 10b causes the speakers 16a to 16d provided in the passenger vehicle 20 to output an operation sound. When the operation input unit 10a accepts an input to the operation unit 11, the output control unit 10b performs control so that the sound image of the operation sound is aligned with the position of the driver's ears.

[0031] Here, the output control unit 10b controls at least one of the phase and the amplitude of the sound output from the speakers 16a to 16d to control the sound image of the operation sound. Furthermore, when the operation input unit 10a receives an input to the operation unit 11, the output control unit 10b controls the speakers 16a to 16d to output sounds having a phase that cancels out the operation sounds at the positions of ears other than the driver's ears.

[0032] The audio sound control unit 10c causes audio sound from a car audio 14 provided in the passenger vehicle 20 to be output from speakers 16a to 16d. When the operation input unit 10a accepts input to the operation unit 11 and the output control unit 10b outputs an operation sound, the audio sound control unit 10c performs control to align the sound image to a position other than the driver so that the audio sound is difficult to hear at the driver's ears of the passenger vehicle 20.

[0033] Here, the audio sound control unit 10c controls at least one of the phase and the amplitude of the sound output from the speakers 16a to 16d to control the sound image of the audio sound. When the operation input unit 10a receives an input to the operation unit 11, the audio sound control unit 10c performs control so that sounds having a phase that cancels out the audio sounds at the positions of the driver's ears are output from the speakers 16a to 16d.

[0034] The external sound detection unit 10d detects external sounds including audio sounds. This allows the audio sound control unit 10c to perform active noise canceling processing so that sounds having a phase that cancels out the external sounds detected by the external sound detection unit 10d are output from the speakers 16a to 16d. The phase of the audio sound and / or the operation sound is controlled by precisely adjusting the phase of the waveform radiated from each of the speakers 16a to 16d. For example, if two speakers are provided and the same signal is radiated from each speaker, adjusting the phase of the signals will cause the two speakers to interfere with each other, and sound waves (or radio waves) can be concentrated in a specific direction.

[0035] Here, when the two signals are in phase, the signal wave will be strong in that direction, and conversely, when the phases are opposite, the signal wave will be weak in that direction, making it possible to control the strength of the signal wave in a specific direction. On the other hand, the amplitude control of the audio sound and / or the operation sound is performed by independently adjusting the volume of each of the speakers 16a to 16d, thereby concentrating the sound in a desired direction. In this embodiment, more precise beamforming can be achieved by using both phase control and amplitude control.

[0036] <Sound image control details> In the sound image control system 1 of this embodiment, the DSP 10 performs the following control so that the driver sitting in the driver's seat 21a of the passenger car 20 can hear the operation sound when the operation unit 11 is operated as clearly as possible.

[0037] In this embodiment, the four speakers 16a to 16d mounted on the passenger vehicle 20 are arranged at the four corners of the vehicle interior space, as shown in FIG. That is, under normal circumstances except when there is an operational input to the operation unit 11 or the car audio 14, the sound image control system 1 focuses the sound image on the center of the four occupants seated in the driver's seat 21a, the passenger seat 21b and the rear seats 21c and 21d of the passenger vehicle 20, as shown in FIG. 3, and outputs audio sounds, etc. from the four speakers 16a to 16d.

[0038] Then, when an operational input is made to the operation unit 11 or the car audio 14, as shown in FIG. 4, the sound image is controlled so that the audio sound avoids the position of the driver's ears in the driver's seat 21a and is concentrated at positions other than the driver (beamforming processing of the audio sound). More specifically, when the operation input unit 10a accepts input to the operation unit 11 and the output control unit 10b outputs operation sounds from the speakers 16a to 16d, the audio sound control unit 10c performs control to align the sound image with positions other than the driver (passengers) so that the audio sounds are difficult to hear at the position of the driver's ears of the passenger car 20.

[0039] As a result, when a driver or the like operates the operation unit 11 or the car audio 14 inside the passenger car 20 and an operation sound is output, the sound image of the audio sound is adjusted to a position other than the driver, making it easier for the driver to hear the operation sound. Therefore, the driver can get a sense of actually operating the operation unit 11, the car audio 14, etc., and can recognize that the operation has been performed, thereby providing a sense of security.

[0040] In addition, when an operation input is made to the operation unit 11 or the car audio 14, as shown in FIG. 5, the sound image is controlled so that the operation sound is concentrated at the position of the ears of the driver in the driver's seat 21a (beamforming processing of the operation sound). More specifically, when the operation input unit 10a receives an input to the operation unit 11, the output control unit 10b performs control to output an operation sound so that the sound image of the operation sound is aligned with the position of the driver's ears.

[0041] This makes it possible to more effectively make it easier for the driver to hear the operation sounds by combining control for shifting the audio sounds away from the position of the driver's ears with control for aligning the sound image of the operation sounds to the position of the driver's ears. Furthermore, in the sound image control system 1 of the present embodiment, in order to more effectively allow the driver to hear clear operation sounds, active noise canceling processing is also performed in combination.

[0042] Specifically, when an operational input is made to the operation unit 11 or the car audio 14, active noise canceling processing is performed so that the audio sound is cancelled at the position of the ears of the driver in the driver's seat 21a, as shown in FIG. 6. More specifically, when the operation input unit 10a receives an input to the operation unit 11, control is performed so that a sound having a phase that cancels out the audio sound at the position of the driver's ears is output from at least one of the speakers 16a to 16d.

[0043] As a result, when the operation unit 11 is operated, a sound having a phase that cancels the audio sound at the position of the driver's ear is output from the speakers 16a to 16d, and the audio sound is canceled as noise. Therefore, the driver in the driver's seat 21a can clearly hear only the operation sound. In addition, when an operational input is made to the operation unit 11 or the car audio 14, active noise canceling processing is performed so that the operational sounds of the operation unit 11, etc. are cancelled at the ear positions of passengers other than the driver, as shown in FIG. 7. More specifically, when the operation input unit 10a receives an input to the operation unit 11, the output control unit 10b performs control so that sounds having a phase that cancels out the operation sounds at the positions of ears other than the driver's ears are output from the speakers 16a to 16d. This allows control so that the operation sound is heard only by the driver.

[0044] <Major features> The DSP 10 of this embodiment includes an operation input unit 10a, an output control unit 10b, and an audio sound control unit 10c. The operation input unit 10a accepts input to the operation unit 11 and the car audio 14 provided in the passenger vehicle 20. The output control unit 10b outputs operation sounds from the speakers 16a to 16d provided in the passenger vehicle 20 in response to the input to the operation input unit 10a. The audio sound control unit 10c outputs audio sounds of audio devices provided in the passenger vehicle 20 from the speakers 16a to 16d. When the operation input unit 10a accepts input to the operation unit 11 and the car audio 14 and the output control unit 10b outputs operation sounds from the speakers 16a to 16d, the audio sound control unit 10c performs control so as to adjust a sound image to a position other than the driver so that the audio sounds are difficult to hear at the position of the driver's ears of the passenger vehicle 20.

[0045] As a result, when a driver or the like operates the operating unit 11 and the car audio 14 inside the passenger car 20, the operation sound is outputted by controlling the sound image of the audio sound to be aligned with a position other than the driver (such as a passenger), so that the operation sound is easily heard at the position of the driver's ears. As a result, by using the existing components (speakers 16a to 16d, etc.) in the passenger vehicle 20, it is possible to control the operation sound performed by the driver so that the driver can reliably hear it.

[0046] [Other embodiments] Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention. (A) In the above embodiment, the present invention has been described as an example of the sound image control device (DSP 10) and the sound image control method, but the present invention is not limited to this.

[0047] For example, the present invention may be realized as a program for causing a computer to execute the above-described sound image control method. This program is stored in a memory (storage unit) mounted on the sound image control device, and the CPU reads the sound image control program stored in the memory and causes the hardware to execute each step. More specifically, the CPU reads the sound image control program and executes the above-mentioned operation input step, output control step, and audio sound control step, thereby achieving the same effects as those described above. Furthermore, the present invention may be realized as a recording medium on which a sound image control program is stored.

[0048] (B) In the above embodiment, an example was given in which the functional blocks formed inside the DSP 10 realize the configuration of the present invention (the operation input unit 10a, the output control unit 10b, and the audio sound control unit 10c). However, the present invention is not limited to this.

[0049] For example, when a sound image control device is retrofitted to an existing vehicle such as a passenger car 20, the sound image control system 101 may be configured as shown in FIG. 8, in which a sound image control device 110 is added between the operation unit 11 and the car audio 14 and the DSP 10a. In this configuration, when the operation input unit 10a receives an operation input entered into the operation unit 11 or the car audio 14, the output control unit 10b and the audio sound control unit 10c perform the above-mentioned beamforming control and active noise canceling processing, thereby obtaining the same effect as above.

[0050] (C) In the above embodiment, an example was described in which, when the operation input unit 10a accepts an input to the operation unit 11 and the output control unit 10b outputs an operation sound, the audio sound control unit 10c performs beamforming control to align a sound image to a position other than the driver so that the audio sound is difficult to hear at the position of the driver's ears of the passenger car 20, and the output control unit 10b performs beamforming control to align the sound image of the operation sound to the position of the driver's ears. However, the present invention is not limited to this.

[0051] For example, when the operation input unit accepts input to the operation unit and the output control unit outputs an operation sound, the audio sound control unit may only perform beamforming control of the audio sound to align the sound image to a position other than the driver so as to make the audio sound difficult to hear at the ear position of the driver of the passenger vehicle. Even in this case, sounds other than the operation sound (audio sounds) are difficult to hear at the position of the driver's ears, so that the operation sound can be reliably recognized by the driver. Further, the combination with the noise canceling process for audio sound and the combination with the noise canceling process for operation sound are not essential, and any combination may be used.

[0052] (D) In the above embodiment, an example has been described in which the sound information storage unit 12 provided outside the DSP 10 is used as a storage unit for storing a plurality of types of original sound data of operation sounds. However, the present invention is not limited to this. For example, a storage unit provided inside the sound image control device (DSP) may store original sound data of a plurality of types of operation sounds.

[0053] (E) In the above embodiment, an example has been described in which the multiple speakers 16a to 16d serving as output units are installed at four corners of the interior space of the passenger car 20. However, the present invention is not limited to this. For example, if the passenger vehicle is a two-seater, two speakers may be provided, one beside the driver's seat and the other beside the passenger seat. Furthermore, the number of speakers does not have to be four, but may be three or less, or five or more.

[0054] (F) In the above embodiment, the passenger car 20 has been taken as an example of a moving body to which the present invention is applied, but the present invention is not limited to this. For example, the mobile bodies to which the present invention is applicable may be trucks, buses, trains, ships, airplanes, helicopters, various attractions installed in facilities such as amusement parks, etc., in addition to passenger cars.

[0055] <Additional Notes> A sound image control device according to a first aspect of the present invention comprises: A sound image control device that is mounted on a moving body and controls an output of sound inside the moving body, an operation input unit that receives an input to an operation unit provided in the moving object; an output control unit that outputs an operation sound from an output unit provided on the moving object in response to an input to the operation input unit; an audio sound control unit that outputs audio sound from an audio device provided in the mobile object from an output unit; Equipped with When the operation input unit accepts input to the operation unit and the output control unit outputs an operation sound, the audio sound control unit performs control to align a sound image to a position other than the driver so that the audio sound is difficult to hear at the position of the driver's ears of the moving body.

[0056] A sound image control device according to a second aspect of the present invention is the sound image control device according to the first aspect of the present invention, When the operation input unit receives an input to the operation unit, the output control unit performs control so that a sound image of the operation sound is aligned with the position of the driver's ears. A sound image control device according to a third aspect of the present invention is the sound image control device according to the second aspect of the present invention, The output control unit controls at least one of the phase and the amplitude of the sound output from the output unit to control the sound image of the operation sound.

[0057] A sound image control device according to a fourth aspect of the present invention is a sound image control device according to any one of the first to third aspects of the present invention, The audio sound control unit controls at least one of the phase and the amplitude of the sound output from the output unit to control the sound image of the audio sound. A sound image control device according to a fifth aspect of the present invention is a sound image control device according to any one of the first to fourth aspects of the present invention, When the operation input unit receives an input to the operation unit, the audio sound control unit performs control so that a sound having a phase that cancels out the audio sound at the position of the driver's ears is output from the output unit.

[0058] A sound image control device according to a sixth aspect of the present invention is the sound image control device according to the fifth aspect of the present invention, The device further includes an external sound detection unit that detects an external sound including an audio sound, The audio sound control unit performs control so that a sound having a phase that cancels the external sound detected by the external sound detection unit is output from the output unit. A sound image control device according to a seventh aspect of the present invention is a sound image control device according to any one of the first to sixth aspects of the present invention, When the operation input unit receives an input to the operation unit, the output control unit performs control so that a sound having a phase that cancels out the operation sound at the position of an ear other than that of the driver is output from the output unit.

[0059] A sound image control device according to an eighth aspect of the present invention is a sound image control device according to any one of the first to seventh aspects of the present invention, The device further includes a storage unit for storing a plurality of original sound data as operation sounds. A sound image control system according to a ninth aspect of the present invention comprises: A sound image control device according to any one of the first to eighth aspects of the present invention; An operation unit provided on the moving body; An output unit provided on the moving body; It is equipped with: [Industrial Applicability]

[0060] The sound image control device of the present invention has the effect of being able to use an existing configuration in a mobile body to control the operation sounds operated by the driver so that they are reliably heard by the driver, and therefore can be widely applied as a sound image control device to be installed in various mobile bodies, facilities, etc. [Explanation of symbols]

[0061] 1. Sound Image Control System 10 DSP (sound image control device) 10a Operation input section 10b Output control section 10c Audio sound control section 10d External sound detection section 11 Control section 12 Sound information storage section (storage section) 13a Sound detection section 13b Amplification section 14 Car audio (operating part) 15a, 15b, 15c, 15d Amplifiers 16a, 16b, 16c, 16d Speaker (output section) 20 Passenger cars 21a Driver's seat 21b passenger seat 21c, 21d back seat 101 Sound Image Control System 110 DSP

Claims

1. A sound image control device that is mounted on a moving body and controls an output of sound inside the moving body, an operation input unit that receives an input to an operation unit provided on the moving object; an output control unit that outputs an operation sound from an output unit provided on the moving object in response to an input to the operation input unit; an audio sound control unit that outputs audio sound from an audio device provided in the moving object from the output unit; Equipped with When the operation input unit receives an input to the operation unit and the output control unit outputs the operation sound, the audio sound control unit performs control to align a sound image to a position other than the driver so as to make the audio sound difficult to hear at the position of the driver's ears of the moving body. Sound image control device.

2. When the operation input unit receives an input to the operation unit, the output control unit performs control so that a sound image of the operation sound is aligned with the position of the driver's ear. The sound image control device according to claim 1 .

3. the output control unit controls at least one of a phase and an amplitude of the sound output from the output unit to control a sound image of the operation sound. The sound image control device according to claim 2.

4. the audio sound control unit controls at least one of a phase and an amplitude of the sound output from the output unit to control a sound image of the audio sound. The sound image control device according to claim 1 or 2.

5. When the operation input unit receives an input to the operation unit, the audio sound control unit performs control so that a sound having a phase that cancels the audio sound at the position of the driver's ear is output from the output unit. The sound image control device according to claim 1 or 2.

6. An external sound detection unit that detects an external sound including the audio sound, The audio sound control unit performs control so that a sound having a phase that cancels the external sound detected by the external sound detection unit is output from the output unit. The sound image control device according to claim 5.

7. When the operation input unit receives an input to the operation unit, the output control unit performs control so that a sound having a phase that cancels the operation sound at a position of an ear other than that of the driver is output from the output unit. The sound image control device according to claim 1 or 2.

8. The device further includes a storage unit for storing a plurality of original sound data as the operation sound. The sound image control device according to claim 1 or 2.

9. The sound image control device according to claim 1 or 2, The operation unit provided on the movable body; The output unit provided on the moving body; A sound image control system comprising:

10. A sound image control program for controlling an output of sound inside a moving object, an operation input step of receiving an input to an operation unit provided on the moving object; an output control step of outputting an operation sound from an output unit provided in the moving object in response to the input in the operation input step; an audio sound control step of outputting audio sound from an audio device provided in the moving object from the output unit; Equipped with When an input to the operation unit is accepted in the operation input step and the operation sound is output in the output control step, In the audio sound control step, a control is performed to align a sound image with a position other than the driver of the moving body so that the audio sound is difficult to hear at the position of the driver's ears. A sound image control program for causing a computer to execute the sound image method.

Images