JPH1032900A - On-vehicle acoustic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To show the sound volume level of every speaker as a display pattern, in response to the position of every speaker by reading the display pattern data out of a storage means according to a set sound volume level and showing the display pattern for every speaker. SOLUTION: An operating part 4 points the speaker that is set and selected by designation of a user and also the sound volume level of the selected speaker to a control part 3. The part 3 inputs the display data from a storage part 12 for display of the sound volume data set on every speaker and sends the pattern data on the sound volume display of every speaker to a display control part 2, by the instruction signals received from the part 4. The part 2 outputs the display signals sent from the part 3 for display the set sound volume of every speaker to a speaker display part 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a display device for use in an audio device such as a radio receiver, a cassette deck, a CD player, etc., particularly a display device for displaying a spectrum characteristic, an equalizer characteristic and the like in a vehicle interior. The present invention relates to an on-vehicle acoustic device.

[0002]

2. Description of the Related Art Conventionally, there has been known a display device having a dedicated display means for displaying a spectrum characteristic and an equalizer characteristic in a vehicle cabin. Also, a vehicle-mounted acoustic device having a level display device for emitting a large number of light-emitting elements has been conventionally known.

[0003]

However, the level display device using the above-mentioned conventional light emitting element merely displays the level of the acoustic signal, and cannot display the volume level of each speaker in a pattern. Was something.

The present invention solves the above-mentioned conventional problems, and displays a sound volume level of each speaker in accordance with an arrangement position of each speaker by using a display device for displaying a spectrum characteristic or an equalizer characteristic. An object of the present invention is to provide an on-vehicle acoustic device that displays a pattern.

[0005]

In order to solve the above-mentioned problems, the present invention sets a volume for each of a plurality of speakers arranged in front, rear, left and right in a vehicle using an operation unit, and sets a volume for each speaker. Is displayed on the display means in accordance with the arrangement position of the speaker.

[0006] Thus, the volume level of each speaker can be displayed as a display pattern corresponding to the position of each speaker.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a plurality of speakers arranged in front, rear, left and right in a vehicle, signal processing means for adjusting the volume level of these speakers, respectively, An operation unit for setting the volume of each speaker; storage means for storing display pattern data corresponding to the volume set for each speaker; and a display pattern corresponding to the volume for each speaker in an arrangement position of the speaker. Display means for displaying correspondingly, and control means for reading display pattern data from the storage means in accordance with the volume level set by the operation section and displaying the display pattern for each speaker on the display means. The volume level of each speaker can be displayed as a display pattern corresponding to the position of each speaker based on the settings of the operation unit. It has the effect of.

[0010] According to a second aspect of the present invention, a display pattern corresponding to the volume of each speaker output from the signal processing means is displayed in accordance with the arrangement position of each speaker. This has the effect of enabling display according to the level.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of an on-vehicle acoustic device according to the present embodiment. In FIG. 1, reference numeral 1 denotes a display unit including a plurality of segments for displaying an equalizer characteristic, a spectrum characteristic, and the like. The display unit 1 has a function of displaying the set volume of each loudspeaker in a pattern diagram using segments, and is configured by an LCD or the like.

Reference numeral 2 denotes a display control unit.
Is based on the set volume data of each speaker from the control unit 3.
A speaker setting volume display signal is transmitted to the display unit 1 and is constituted by an LCD driver or the like.

Reference numeral 3 denotes a control unit. The control unit 3 stores the data in the storage unit 12 in accordance with each speaker setting volume signal from the operation unit 2.
It has the function of reading the set volume pattern data of each speaker from the CPU and outputting the set volume pattern data of each speaker to the display control unit 2, and is constituted by a microcomputer or the like.

Reference numeral 4 denotes an operation unit. The operation unit 4 instructs the control unit 3 to select each speaker and set a volume of the selected speaker according to a user's specification.

Reference numeral 12 denotes a storage unit.
It has an operation of outputting pattern data of the set volume display of each set speaker from the stored pattern data of each speaker set volume display, and is constituted by a ROM or the like.

The music source 5 has a function of reproducing music software such as a compact cassette tape and a compact disk (CD) and outputting an audio signal, and is constituted by a cassette deck, a CD deck and the like.

The amplifier circuit 6 has a function of amplifying the audio signal, and is composed of an operational amplifier or the like.

The AD conversion circuit 7 has a function of converting an analog signal into a digital signal, and is constituted by an AD converter IC or the like.

The signal processing circuit unit 8 includes a speaker sound generating means for generating a vehicle speaker signal (front right speaker, front left speaker, rear right speaker, rear left speaker) from the right / left sound signal, and a control unit 8. It has a means for controlling the volume level of each speaker based on each speaker volume setting data from the CPU, and is constituted by a DSP IC or the like.

The DA conversion circuit 9 has a function of converting a digital signal into an analog signal, and is composed of a DA converter IC or the like.

The power amplifier 10 includes the signal processing circuit D
It has a function of amplifying the audio signal output from the A conversion circuit 9, and is composed of a power amplifier IC or the like.

The loudspeaker 11 has a function of performing sound processing on the audio signal from the amplifying circuit 10, and is constituted by a loudspeaker unit or the like.

The storage unit 12 has the function of outputting the pattern data of the volume display of each selected speaker from the stored pattern data of the speaker volume display, and is constituted by a ROM or the like.

The operation of the on-vehicle acoustic device configured as described above will be described. The operation unit 4 is operated by a user's specification.
The control unit 3 is instructed to select a speaker to be set and the volume level of the selected speaker.

The control unit 3 inputs display data for displaying the set volume data of each speaker from the storage unit 12 in response to an instruction signal from the operation unit 4, and sends the display data to the display control unit 2.
The pattern data of each speaker volume display is transmitted.

The display control unit 2 outputs a display signal for displaying each speaker volume setting sent from the control unit to the display unit 1.

On the other hand, the audio signal from the music source 5 is amplified by the amplifier circuit 6, the analog signal is converted into a digital signal by the AD converter circuit 7, and output to the signal processing circuit 8.

The signal processing circuit 8 controls a vehicle speaker signal (a front right speaker, a front left speaker, a rear right speaker, and a rear speaker) whose volume has been adjusted based on the right / left audio signal and each speaker volume setting signal from the control unit. (Left speaker) and outputs it to the DA conversion circuit.

The DA converter 9 converts the digital signal sent from the amplifier 8 into an analog signal, outputs the analog signal to the amplifier 10, amplifies the music signal output from the DA converter 9, 11 is output. The speaker 11 performs a sound processing based on the audio signal output from the amplifier circuit 10.

FIG. 2 is a display diagram showing a display example of the display unit 1 when four speakers are arranged in front, rear, left and right inside the vehicle. FIG. 2A shows a case where each speaker is set to a fixed volume, and FIG. 2B shows a case where the volume of the front (front) left and right speakers is increased and the volume of the rear (rear) left and right speakers is decreased. FIG. 2C shows the case where the volume of the rear left and right speakers is increased and the volume of the front left and right speakers is decreased, and FIG. 2D shows the case where only the front (front) left speaker outputs audio. Is shown.

FIG. 3 is a display diagram showing a display example of the display unit 1 when four speakers are arranged in the front, rear, left and right inside the vehicle similarly to FIG. FIG. 3A shows a case in which the volume of the right and left speakers is large and the volume of the left and right speakers is small, and FIG. 3B shows a case in which the volume of the left and right speakers is large and the volume of the right and left speakers is small. A display example is shown.

Next, each speaker volume display setting when a segment for displaying a 7 × 7 equalizer or the like is used will be described with reference to FIGS. 4 and 5. FIG.

Using 7 × 7 segments of a display device such as an LCD, vertical control signals are set to Segments 0 to 6, and horizontal control signals are set to common 0 to 6.

When the same volume is output from the front, rear, left, and right speakers, 00 blinks by Segment 0 and Common 0, and similarly, 01 to 02, 04 to 06, 10
~ 11, 15 ~ 16, 20, 26, 40, 46, 50 ~
The current volume adjustment can be recognized by blinking 51, 55-56, 60-62, 64-66.

In FIG. 5, when only the volume of the front right speaker is increased and the volume of other speakers is decreased, 00 is turned on by Segment0 and Common0, and similarly, 01-03, 05-06, 10-12. ,
16, 20 to 21, 30, 50, 56, 60 to 61, 6
By lighting 5-66, the current volume can be recognized.

In the above-described embodiment, the display pattern stored in the storage unit 12 is displayed based on the setting of the operation unit 4, but the display pattern is changed according to the audio signal from the music source 5. The change in the sound volume level for each speaker 11 output from the processing circuit 8 can be displayed on the display unit 1 in accordance with the arrangement position of each speaker.

Also, the setting mode can be differentiated from the audio output mode by blinking the display at the time of setting and lighting the volume display.

[0036]

As described above, according to the present invention, the volume is set for each of a plurality of speakers arranged in the front, rear, left and right directions in the vehicle by the operation unit, and the display pattern corresponding to the volume of each speaker is changed. This is displayed on the display means corresponding to the arrangement position, and has an effect that the volume level of each speaker can be displayed as a display pattern corresponding to the arrangement position of each speaker.

Further, by displaying a display pattern corresponding to the volume of each speaker output from the signal processing means in accordance with the arrangement position of each speaker, it is possible to perform display in accordance with the volume level of each speaker. Have.

[Brief description of the drawings]

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

FIG. 2 is a display diagram showing a sound volume display example in the embodiment.

FIG. 3 is a display diagram showing a sound volume display example in the embodiment.

FIG. 4 is a block diagram showing details of a display unit in the embodiment.

FIG. 5 is a block diagram showing details of a display unit in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display part 2 Display control circuit 3 Control part 4 Operation part 5 Music source 6 Amplification circuit 7 AD conversion circuit 8 Signal processing circuit (DSP) 9 DA conversion circuit 10 Amplification circuit 11 Speaker 12 Storage part

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location H04R 1/00 310 H04R 1/00 310E 3/04 3/04 H04S 1/00 H04S 1/00 D

Claims (2)

[Claims] 1. A plurality of speakers arranged in front, rear, left and right in a vehicle, signal processing means for adjusting volume levels of the speakers, an operation unit for setting a volume of each speaker, and the speaker Storage means for storing display pattern data corresponding to the volume set for each of the speakers, display means for displaying a display pattern corresponding to the volume of each of the speakers corresponding to the positions of the speakers, and setting by the operation unit And a control means for reading display pattern data from the storage means in accordance with the determined volume level and displaying the display pattern for each speaker on the display means. 2. The in-vehicle acoustic device according to claim 1, wherein a display pattern corresponding to the volume of each speaker output from the signal processing means is displayed in correspondence with the position of each speaker.