JPH0570100U - Automotive sound system - Google Patents

Abstract

(57) [Abstract] [Purpose] The sound output from the D / R / L speakers 10 and 13 is set to the front and rear sounds depending on the passenger position of the seat of the vehicle 7.
/ L Selects the volume circuit and outputs an arbitrary sound reproduction sound. [Structure] F / R / L speakers 5 and 6, D / R / L speakers 10 and 13 and R / R / L speakers 16 and 19 are provided inside the vehicle, and
The R / R / L speakers 16 and 19 output rear sound through the R / L reverberation generators 14 and 17, and the R / L volume circuit 8 provided in the sound source supply section of the D / R / L speakers 10 and 13 described above. , 11 selects the sound source of the front sound and the rear sound.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a vehicle-mounted acoustic system having a plurality of speakers inside the vehicle, and more particularly to a vehicle-mounted acoustic system suitable for selecting the sound output of the left and right door speakers from a front sound or a rear sound and outputting the sound. .

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, many in-vehicle acoustic systems provided with a plurality of speakers inside a vehicle have a block diagram shown in FIG. In the figure, reference numeral 1 is an input terminal for a right channel signal (hereinafter, simply referred to as R signal) of a stereo audio signal, and 2 is an input terminal for similarly a left channel signal (hereinafter, simply referred to as an L signal).

Reference numerals 3 and 4 are front speaker R / L amplifiers (hereinafter referred to as F / R / L amplifiers). The acoustic outputs of the F / R / L amplifiers 3 and 4 are F / R / L speakers 5. , 6 are supplied and output. 7 is a vehicle. 9 and 12 are R / L amplifiers for door speakers (hereinafter referred to as D / R / L amplifiers). The output signals of the D / R / L amplifiers 9 and 12 are output to the D / R / L speakers 10 and 13. Supplied and output.

Reference numeral 14 is an R reverberation generator, and an output signal of the R reverberation generator 14 is supplied to an RR speaker 16 via an R rear amplifier 15 for rear speakers (hereinafter referred to as RR amplifier 15). Similarly, the output signal of the L reverb generator 17 is also supplied to the RL speaker 19 via the RL amplifier 18 and output to the RL speaker 19 for the L channel.

The in-vehicle acoustic system configured as described above outputs acoustic signals supplied from the F / R / L speakers 5 and 6 and the D / R / L speakers 10 and 13 to the input terminals 1 and 2. Also, the acoustic signals supplied to the input terminals 1 and 2 are supplied to the R / L reverberation generators 14 and 17 to generate reverberation sounds, and these reverberation sound signals are output from the R / R / L speakers 16 and 19 as sound output. However, the inside of the vehicle was being recreated with the halltone effect.

[0006]

[Problems to be solved by the device]

 However, in the above-mentioned conventional vehicle-mounted audio system, the six speakers 5,6,10,13,16,19 are provided inside the vehicle to listen to the audio output. The speakers 10 and 13 were mounted on the rear door of the vehicle and were configured to output the same acoustic signals as the F / R / L speakers 5 and 6 as described above.

With such a configuration, front passengers can hear the passengers in the rear seats through the F / R / L speakers 5 and 6 and the D / R / L speakers 10 and 13, and , R / R / L speakers 16 and 19 can hear the rear sound with reverberation effect, the sound image localization of each of the front sound and the rear sound becomes clear, and a more effective sound field can be obtained. Although it can be played back, it is not an effective playback sound because the front sound is generated from the rear D / R / L speakers 10 and 13 for the passenger in the front seat of the vehicle, and the sound image localization is not performed. Had a drawback that the sound image localization was ambiguous because it was pulled backward, and there was a problem that the adverse effect occurred.

The present invention has been made in view of the above points, and an object thereof is to solve the drawbacks of the conventional example, and to output the sound output from the D / R / L speakers 10 and 13 to the front sound and the rear sound. An R / L volume circuit that can select sounds is provided, and an in-vehicle sound system that can output any sound reproduction sound depending on the passenger position of the vehicle seat is being provided.

[0009]

[Means for Solving the Problems]

 The in-vehicle sound system of the present invention includes an F / R / L speaker, a D / R / L speaker, and an R / R / L speaker provided inside the vehicle, and the R / R / L speaker is an R / L speaker. In an in-vehicle sound system configured to output sound through a reverberation generator, an R / L volume circuit is provided in the sound source supply section of the D / R / L speaker, and this R / L volume circuit is adjusted. It is configured so that the sound source can be selected.

[0010]

[Action]

 According to this invention, an R / L volume circuit that selects the sound source of the D / R / L speaker installed inside the vehicle is provided, and the sound of the F / R / L speaker is connected to one terminal of this R / L volume circuit. The front sound added to the R / L input terminal that is the output is supplied, and the rear sound of the reverberation sound that is output from the R / L reverb generator that is the sound output of the R / R / L speaker is supplied to the other terminal. The sound output from the movable terminal of the R / L volume circuit is supplied to the D / R / L speaker.

That is, the sound output of the D / R / L speaker can be obtained by setting the R / L volume circuit at one terminal to obtain the sound output of the front sound, and by setting at the other terminal. The acoustic output of the rear sound can be obtained. Also, by adjusting the R / L volume circuit, it is possible to output any playback sound by selecting to emphasize the front sound or the rear sound.

As described above, by setting the sound output of the D / R / L speaker to the front sound or the rear sound according to the position of the listener who gets in the vehicle, the reproduced sound with a more effective sound localization is clarified. Can be heard.

[0013]

【Example】

 An embodiment of a vehicle-mounted acoustic system according to the present invention will be described based on the block diagram of FIG. The same parts as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

In the figure, reference numeral 8 is an R channel volume circuit for controlling the output of the DR speaker 10. The output signal of the R volume circuit 8 is amplified by the DR amplifier 9 and supplied to the DR speaker 10. . Reference numeral 11 is an L channel volume circuit for controlling the output of the DL speaker 13, and the output of the L volume circuit 11 is supplied to the DL speaker 13 via the DL amplifier 12.

The R / L volume circuits 8 and 11 of the D / R / L loudspeakers 10 and 13 configured as described above are arranged so that one of the terminals of the R / L volume circuits 8 and 11 receives the input of the input terminals 1 and 2. The same front sound as the F / R / L speaker 5 and 6 outputs, which are acoustic signals, is supplied, and the output terminals of the R / L reverb generators 14 and 17 are connected to the other terminals of the R / L volume circuits 8 and 11. The same rear sound as the R / R / L speakers 16 and 19 outputs, which are

The output signals from the movable terminals of the R / L volume circuits 8 and 11 are supplied to the D / R / L amplifiers 9 and 12, and the output acoustic signals are output from the D / R / L speakers 10 and 13. It That is, the outputs of the D / R / L speakers 10 and 13 can output the sound reproduction sound adjusted by the R / L volume circuits 8 and 11.

Now, by adjusting the movable terminals of the R / L volume circuits 8 and 11 and setting them to one terminal, front sound is output from the D / R / L speakers 10 and 13 and the rear seats of the vehicle are For passengers, the front sound can be heard from the front F / R / L speakers 5 and 6 and the D / R / L speakers 10 and 13, and the rear sound is to the rear R / R / L speakers. It is possible to obtain a reproduced sound with a clear sound image localization having an acoustic effect that can be heard from 16,19.

Normally, when a passenger in the rear seat hears the front sound from the F / R / L speakers 5 and 6, the front sound from the F / R / L speakers 5 and 6 is received by the front seat. Sound is cut off, or sound is absorbed and attenuated by the seat, which deteriorates the sound quality and unclear the sound image localization, but this D / R / L speaker 10 is combined with the output of the F / R / L speakers 5 and 6. Since the front sound can be heard from 13 and 13, the above problem can be solved.

By adjusting the movable terminals of the R / L volume circuits 8 and 11 to set the other terminals, the rear sound is output from the D / R / L speakers 10 and 13, and the front seats of the vehicle The front sound can be heard from the F / R / L speakers 5 and 6, and the rear sound with the reverberation effect can be heard by the D / R / L speakers 10 and 13 and the R / R / L speaker 16 for the passengers of the vehicle. , 19 can be heard, and the attenuation of the rear sound from the R / R / L speakers 16 and 19 for the passenger in the front seat can be heard from the D / R / L speakers 10 and 13 as described above. When the output is supplemented, it is possible to obtain a reproduced sound with a clearer sound image localization that has a more acoustic effect, and when there are multiple passengers in the front and rear seats of the vehicle, the R / L volume circuit 8 , 11 movable terminals can be set arbitrarily, for example, by setting them at approximately the center of the R / L volume circuits 8 and 11, the front and rear sounds are about the same. The mixed playback sound can be output from the D / R / L speakers 10 and 13, and the playback sound in which the front sound or the rear sound is emphasized can be set, for example, according to the taste of the listener. The sound can be output from the D / R / L speakers 10 and 13, and the reproduced sound inside the vehicle with more effective sound localization can be heard.

As described above, the seat occupant inside the vehicle can select and listen to the acoustic reproduction sound inside the vehicle by adjusting the settings of the R / L volume circuits 8 and 11.

[0021]

[Effect of the device]

 As described above, the in-vehicle audio system according to the present invention uses the sound reproduced from the D / R / L speakers 10 and 13 by adjusting the R / L volume circuits 8 and 11 to produce a front sound or a rear sound having a reverberation effect. Since it is possible to select and set any sound output of, it is possible to create an optimum sound effect inside the vehicle in which the sound image localization is made clearer depending on the listening position of the vehicle occupant.

Moreover, it has excellent features such as a simple structure and easy implementation because it can be constructed at low cost.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a vehicle-mounted acoustic system according to the present invention.

FIG. 2 is a block diagram showing a conventional example.

[Explanation of symbols]

 1,2 R / Lch audio signal input terminal 3,4 Front left / right channel (F / R / L) amplifier 5,6 Front left / right channel (F / R / L) speaker 7 Vehicle 8,11 Left / right (R / L) Volume circuit 9,12 Door left / right channel (D / R / L) amplifier 10,13 Door left / right channel (D / R / L) Speaker 14,17 Left / right channel (R / L) Reverb generator 15,18 Rear left / right channel ( R / R / L) Amp 16,19 Rear left / right channel (R / R / L) speaker

Claims (1)

[Scope of utility model registration request] 1. A left and right front speaker, a left and right door speaker, and a left and right rear speaker provided inside a vehicle,
In the vehicle-mounted acoustic system configured to output the sound from the left and right rear speakers through a reverberation generator, a left and right volume circuit is provided in the sound source supply section of the left and right door speakers, and a sound source can be selected by adjusting the left and right volume circuits. An in-vehicle acoustic system having the above-mentioned configuration.