JPH0132480Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a vehicle speaker device, and particularly to a vehicle speaker device that performs stereo reproduction.

BACKGROUND ART Currently, vehicle speaker devices are used to perform stereo reproduction in vehicles, but when a pair of left and right front speakers are provided in front of the front seats, the sound volume in the rear seats decreases. There was a problem. Further, when a pair of left and right rear speakers were provided behind the rear seats, there was a problem in that the rear seats felt oppressive from behind and the stereo sound was impaired. Furthermore, a pair of left and right front speakers are installed in front of the front seats.
When a pair of left and right rear speakers are provided behind the rear seats, for a total of four speakers, there is a problem in that the rear seats feel oppressive and the stereo sound is impaired, similar to the above.

Purpose of the invention The present invention was devised in view of the above-mentioned conventional problems, and its purpose is to reduce the feeling of pressure in the rear seats, ensure a stereo feeling, and secure a realistic reproduction sound field. The purpose of the present invention is to provide a speaker device for a vehicle that can be used in a vehicle.

Structure of the Invention In order to achieve the above object, the present invention includes a pair of front speakers provided in a front seat and a pair of rear speakers provided in a rear seat, the pair of front speakers and the pair of rear speakers provided in a rear seat. In a vehicle speaker device in which a front speaker attenuator and a rear speaker attenuator for controlling fader balance are respectively connected to a rear speaker, each of the rear speaker attenuators includes:
A low-pass filter that operates in conjunction with the rear speaker attenuator is connected, and when the rear speaker attenuator is adjusted to adjust the fader balance to the front speaker side, the low-pass filter cuts a predetermined high frequency band. It is characterized by

Embodiments Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

FIG. 1 shows a vehicle speaker device.

In FIG. 1, front speakers 12L and 12R are provided in front of the front seat 10, and
Behind the rear seat 14 are rear speakers 16L,
16R is provided.

FIG. 2 shows a block circuit of a vehicle speaker system according to an embodiment of the present invention.

In FIG. 2, a signal 100 for the L channel
Signals 100R for L and R channels are attenuators 18L and 18 for fader balance, respectively.
A signal 100L for the L channel and a signal 1 for the R channel are supplied to the front speakers 12L and 12R via amplifiers 20L and 20R.
00R is supplied to rear speakers 16L, 16R via fader balance attenuators 22L, 22R and amplifiers 24L, 24R, respectively.

A feature of this embodiment is that low-pass filters 26L and 26R are connected to the rear speaker attenuators 22L and 22R, respectively.

Then, adjust the attenuators 22L and 22R to adjust the fader balance between the front speakers 12L and 12R.
When adjusted to the side, the low-pass filters 26L, 26R operate in conjunction with the attenuators 22L, 22R. Therefore, the low pass filters 26L, 26R
A predetermined high frequency band signal is cut out,
It is possible to reduce the feeling of pressure in the rear seats and ensure a stereo sound.

Furthermore, when the fader balance is sufficiently adjusted to the front speakers 12L, 12R side, the rear speakers 16L, 16R become speakers that reproduce the low frequency range that is difficult to reproduce with the front speakers 12L, 12R. You can secure a place.

As described above, according to the embodiment, it is possible to reduce the feeling of pressure in the rear seats, ensure a stereo sound, and secure a reproduced sound field with a sense of presence.

Effects of the invention As explained above, according to the invention, a low-pass filter is connected to each of the rear speaker attenuators, which reduces the feeling of pressure in the rear seats and provides sufficient volume. It is possible to ensure a stereo sound and a realistic reproduction sound field. Also, the same sound field as in the front seats can be obtained in the rear seats.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a vehicle speaker device, and FIG. 2 is a block circuit diagram of a vehicle speaker device according to an embodiment of the present invention. 10...Front seat, 12L, 12R...Front speaker, 14...Rear seat, 16L, 16R...Rear speaker, 18L, 18R...Attenuator, 22L, 2
2R...Attenuator, 26L, 26R...Low pass filter.

Claims (1)

[Scope of utility model registration request] A pair of front speakers provided on the front seat and a pair of rear speakers provided on the rear seat, each of which is provided with a pair of front speakers and a pair of rear speakers for controlling the fader balance. In a vehicle speaker device in which a front speaker attenuator and a rear speaker attenuator are connected, each of the rear speaker attenuators is connected to a low-pass filter that operates in conjunction with the rear speaker attenuator. 1. A speaker device for a vehicle, wherein the low-pass filter cuts out a predetermined high frequency band signal when the fader balance is adjusted to the front speaker side.