阅读说明：本技术 音响设备 (Sound equipment ) 是由 渡边隆太郎 中川亨 板桥徹德 林繁利 知念徹 本堂朝哉 喜多川智子 于 2018-12-10 设计创作，主要内容包括：本发明的目的是通过适当地阻塞串扰分量的传播路径来减小从分别再现针对左耳和右耳信号的扬声器输出的串扰分量的影响。该音响设备包括通过与收听者的背部和/或头部的背面接触而使用的接触构件。接触构件设置有再现左耳信号的第一扬声器和再现右耳信号的第二扬声器；并且还以某种方式设置有传播抑制对象,以便阻塞从各个扬声器输出的串扰分量的传播路径。(An object of the present invention is to reduce the influence of crosstalk components output from speakers that respectively reproduce signals for the left and right ears by appropriately blocking the propagation paths of the crosstalk components. The acoustic apparatus includes a contact member used by contacting with the back of the listener and/or the back of the head. The contact member is provided with a first speaker reproducing a left ear signal and a second speaker reproducing a right ear signal; and is also provided with a propagation suppressing object in a manner so as to block a propagation path of a crosstalk component output from each speaker.)

1. An audio device comprises

A contact member for contacting the back of the listener and/or the back of the head, wherein,

the contact member is mounted with:

a first speaker configured to reproduce at least one or more signals for a left ear and a second speaker configured to reproduce at least one or more signals for a right ear; and

a propagation obstacle configured to block a propagation path of crosstalk components output from the first speaker and the second speaker.

2. The audio device of claim 1,

the contact member includes a member, an

The first speaker, the second speaker and the propagation barrier are mounted on the one member.

3. The audio device of claim 2,

the one member comprises a seat or a headrest.

4. The audio device of claim 1,

the contact member is formed by connecting two members, an

The first speaker and the second speaker are mounted at one of the two members, and the propagation barrier is mounted at the other of the two members.

5. The audio device of claim 4,

the two members include the seat and the headrest.

6. The audio device of claim 1,

the propagation obstacle is mounted on the contact member in such a manner that a position of the propagation obstacle can be adjusted.

7. The audio device of claim 6,

the position of the propagation obstacle is adjustable at least in a first direction along the contact member, a second direction substantially perpendicular to the first direction, or a third direction connecting the first speaker and the second speaker.

8. The audio device of claim 1,

the propagation barrier is detachably mounted on the contact member.

9. The audio device of claim 1,

the propagation barrier comprises a sound absorbing material.

10. The audio device of claim 1,

the propagation barrier comprises a suitably shaped material.

11. The audio device of claim 1,

the propagation obstacle has a shape integral with the contact member.

Technical Field

The present technology relates to an acoustic apparatus, and more particularly, to an acoustic apparatus that reduces the influence of crosstalk components output from speakers that respectively reproduce signals for the right and left ears.

Background

A stereo reproduction system (virtual surround sound system) using speakers is proposed. Such a stereo reproduction system can actually realize surround sound with two speakers on the left and right sides. Crosstalk cancellation is one of the problems in implementing such stereo systems.

Conventionally, crosstalk is eliminated by signal processing, but there are the following problems: the filter design is difficult, the application field is limited, and furthermore, the amount of calculation and the amount of memory are increased. With respect to such a problem, it is conceivable to realize a system which does not need to perform crosstalk cancellation by signal processing, and physically prevents the generation of crosstalk or attenuates a crosstalk component by installing an obstacle on a propagation path of the crosstalk component.

For example, patent document 1 discloses a technique in which a partition plate for preventing crosstalk is provided between left and right speakers mounted on a ceiling surface. In this technique, the left and right speakers and the partition plate for preventing crosstalk are mounted on the ceiling surface, a gap exists between the listener and the partition plate, and it is difficult to appropriately block the propagation path of the crosstalk component.

CITATION LIST

Patent document

Patent document 1: japanese patent application laid-open No. 2008-271600

Disclosure of Invention

Problems to be solved by the invention

The present technology aims to reduce the influence of crosstalk components by appropriately blocking the propagation paths of the crosstalk components output from speakers that respectively reproduce signals for the right and left ears.

Solution to the problem

The concept of the technology is

Acoustic apparatus comprising a contact member for contacting the back of a listener and/or the back of a head, wherein the contact member is fitted with:

a first speaker configured to reproduce at least one or more signals for a left ear and a second speaker configured to reproduce at least one or more signals for a right ear; and

a propagation obstacle configured to block a propagation path of crosstalk components output from the first speaker and the second speaker.

The present technology includes a contact member for contacting the back of the listener and/or the back of the head. In the contact member, a first speaker reproducing a signal for a left ear and a second speaker reproducing a signal for a right ear are installed, and a propagation obstacle is installed so as to block a propagation path of a crosstalk component output from the first speaker and the second speaker.

For example, the propagation barrier may comprise a sound absorbing material. In this case, since the crosstalk components output from the first speaker and the second speaker are absorbed by the propagation obstacle, the crosstalk components can be effectively suppressed. Further, for example, the propagation barrier may comprise a suitably shaped material. In this case, when the back of the back or the head of the listener is in contact with the contact member, the propagation obstacle is deformed from the back of the head to the back into one shape along the back of the back or the head of the listener or along the rear of the neck, depending on the contact state, and therefore, the crosstalk components output from the first speaker and the second speaker can be effectively blocked.

For example, the contact member may include one member, and the first speaker, the second speaker, and the propagation barrier may be mounted on the one member. In this case, for example, one member may comprise a seat or a headrest. Further, for example, the contact member is formed by connecting two members, and the first speaker and the second speaker are mounted at one member of the two members, and the propagation obstacle is mounted at the other member of the two members. In this case, for example, the two members may include a seat and a headrest.

Therefore, in the present technology, a first speaker reproducing a signal for a left ear and a second speaker reproducing a signal for a right ear are mounted on a contact member for contact with the back of the listener and/or the back of the head, and a propagation obstacle is mounted to block a propagation path of a crosstalk component output from the speakers. Therefore, since the present technology is used in a state where there is no gap between the listener and the propagation obstacle, the influence of the crosstalk component can be reduced by appropriately blocking the propagation paths of the crosstalk components output from the respective speakers.

Note that, in the present technology, the propagation obstacle may be mounted at the contact member in such a manner that, for example, the position of the propagation obstacle can be adjusted. In this case, for example, the position of the propagation obstacle may be adjustable at least in a first direction along the contact member, a second direction substantially perpendicular to the first direction, or a third direction connecting the first speaker and the second speaker. Therefore, since the propagation obstacle is mounted on the contact member in such a manner that the position thereof can be adjusted, the position of the propagation obstacle can be adjusted in accordance with the contact position of the back of the listener or the back of the head with respect to the contact member, and the propagation path of the crosstalk component output from each speaker can be appropriately blocked.

Further, for example, in the present technology, the propagation obstacle may be detachably mounted at the contact member. With this arrangement, when the propagation obstacle becomes dirty or the like, the replacement operation can be easily performed. Note that the propagation obstacle may have a shape separate from the contact member or a shape integral with the contact member.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present technology, it is possible to reduce the influence of crosstalk components by appropriately blocking the propagation paths of the crosstalk components output from speakers that respectively reproduce signals for the right and left ears. Note that the effects recited herein are not constantly limited, and may be any one of the effects recited in the present disclosure.

Drawings

Fig. 1 provides a perspective view and a side view showing an exemplary configuration of an acoustic apparatus as an embodiment.

Fig. 2 is a block diagram showing an exemplary configuration of a signal processing apparatus in a stereo reproduction system (virtual surround sound system).

Fig. 3 is a diagram describing the fact that the propagation obstacle is installed in such a manner that the position of the propagation obstacle can be adjusted.

Fig. 4 is a view describing the fact that the propagation obstacle includes a shape-fitting material.

Fig. 5 provides a view depicting other exemplary mounting locations for speakers and propagation obstructions.

Detailed Description

Hereinafter, modes for carrying out the invention (hereinafter referred to as "embodiments") will be described. Note that the description will be provided in the following order.