KR20050008176A - Sound balance control device for car audio - Google Patents

Abstract

PURPOSE: An apparatus for controlling the audio balance of vehicle audio is provided to control the audio balance of vehicle audio without using additional sound sources by controlling the volume and delay time of a plurality of speakers after a user hearing the same sampling outputted from the speakers. CONSTITUTION: An apparatus for controlling the audio balance of vehicle audio includes a plurality of speakers(31-36), a memory(40) and a selection unit(50). The plurality of speakers is installed inside of vehicle to output the audio signals. The memory stores the sampling audio signal outputted through the plurality of speakers. And, the selection unit is capable of selecting the audio balance control state of the plurality of speakers by the user through the sampling stored in the memory.

Description

Sound balance control device for car audio

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting sound balance of vehicle audio, and more particularly, by using sampling sound signals for adjusting sound balance of a plurality of sound output units installed inside a vehicle to output sound signals of multiple channels. The present invention relates to a sound balance control apparatus for a vehicle that enables the sound balance to be adjusted before the sound signal is output.

In general, the vehicle is equipped with a vehicle audio system such as a radio, cassette tape or video CD to allow passengers to listen to music.

In the actual vehicle audio system, the internal conditions and frequency characteristics of the vehicle such as the type and position of the speaker, the output of the amplifier, the materials used and the internal structure of the vehicle seat, the noise of the vehicle running speed and the window opening and closing, etc. Due to the same external conditions, there are differences in the echo and echo effects generated inside the vehicle.

Therefore, in order to solve such echo, echo, reverberation, and reflection sound, a digital signal processor (hereinafter, referred to as a DSP) is adopted in the vehicle audio system.

In addition, some high-end vehicles are equipped with a volume control of the vehicle audio for each seat in order to provide the best sound quality for passengers seated on each seat.

As shown in FIG. 1, a vehicle audio according to the related art includes a plurality of sound sources 11, 12, 13, and 14, which are made of a radio, a tape deck, a CD player, a television, and the like, which output sound signals according to a driver's selection. And a key control unit 21 formed with a plurality of key buttons so that the driver can control radio broadcasting, tape playback, CD playback, TV viewing, and volume control, and the key control unit 21 according to the operation of the key operation unit 21. A microcomputer 22 for controlling the overall operation of audio, and a volume control unit for adjusting the volume of the sound signal output from the plurality of sound sources (11, 12, 13, 14) by the control of the microcomputer ( 23) and an amplifier 24 for amplifying the sound signal whose volume is adjusted by the volume control unit 23 to be delivered to a plurality of speakers (25, 26, 27).

In the vehicle audio as described above, when the output sound signal is multi-channel, the driver listens to the sound signals output through the plurality of speakers 25, 25, and 26, and then, through the key operation unit 21, the plurality of sound signals. The sound balance was adjusted by adjusting the volume or delay time of the sound signals output from the speakers 25, 26, and 27, respectively.

However, the vehicle audio may adjust volume or delay time for each of the plurality of speakers 25, 26, 27 after the driver listens to an acoustic signal output through the plurality of speakers 25, 26, 27. It is difficult to provide the best sound quality because it is difficult to adjust the sound balance because it is difficult to adjust the sound balance, and the driver repeatedly measures the plurality of speakers 25, 26, 27 to adjust the sound balance. There is a problem that the convenience of the driver is impaired because the volume and delay time must be adjusted.

The present invention has been made to solve the above-described problems of the prior art, the object of which is the sound balance for the plurality of sound output unit before the output of the multi-channel sound signal from a plurality of sound output unit installed inside the vehicle Vehicle audio which enables the sound balance to be easily adjusted without using the sound signal output from the sound source by adjusting the sound balance of the plurality of sound output units through a sampling sound signal consisting of the same sound signal to adjust the It is to provide a sound balance control device.

1 is a view showing a typical car audio,

2 is a view illustrating a plurality of sound output units installed in a vehicle;

3 is a diagram illustrating a sound balance adjusting apparatus for vehicle audio according to the present invention.

<Explanation of symbols on main parts of the drawings>

31, 32, 33, 34, 35, 36: sound output unit 40: memory unit

50: selection

According to an aspect of the present invention, there is provided a sound balance adjusting apparatus for vehicle audio, which includes a plurality of sound output units installed inside a vehicle and outputting sound signals, and sampling sound signals output through the plurality of sound output units. And a selection unit for allowing a user to select whether to adjust the sound balance by the plurality of sound output units through sampling sound signals stored in the memory unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 3, the sound balance adjusting device for vehicle audio according to the present invention is installed inside the vehicle to output sound signals generated from sound sources such as radios, tape decks, CD players, and televisions. A memory in which a plurality of sound output units 31, 32, 33, 34, 35, 36 and sampling sound signals to be output through the plurality of sound output units 31, 32, 33, 34, 35, 36 are stored. The unit 40 and the sampling sound signal stored in the memory unit 40 allow the driver to select whether to adjust the sound balance by the plurality of sound output units 31, 32, 33, 34, 35, and 36. It comprises a selection unit 50 to be.

Here, the sampling sound signal is made of the same multi-channel sound signal to be output through the plurality of sound output units 31, 32, 33, 34, 35, 36, the plurality of sound output unit Reference numerals 31, 32, 33, 34, 35, and 36 refer to a plurality of speakers installed in the front, rear, left, and right of the vehicle based on the seat.

In addition, when the driver adjusts the sound balance by the plurality of sound output units 31, 32, 33, 34, 35, 36 through the selector 50, the driver uses the selector 50. Sound balance adjustment will be performed.

That is, when the driver manipulates the selection unit 50, the sampling sound signals stored in the memory ?? 40 by the selection unit 50 are transmitted to the plurality of sound output units 31, 32, 33, and the like. 34, 35, 36).

In this case, the sampling sound signals are simultaneously output through the plurality of sound output units 31, 32, 33, 34, 35, and 36, or the plurality of sound output units 31, 32, 33, 34, 35, In step 36, the sound signals are sequentially output, or the plurality of sound output units 31, 32, 33, 34, 35, 36 output the sound signals in a preset order so that the driver may output the plurality of sounds. Acoustic balance by the plurality of sound output units 31, 32, 33, 34, 35, 36 is facilitated through sampling sound signals output through the output units 31, 32, 33, 34, 35, 36. It will be adjustable.

Looking at the operation of the sound balance control device of the vehicle audio according to the present invention configured as described above are as follows.

The operation of the sound balance adjusting device for the vehicle audio according to the present invention is performed when the driver wants to adjust the sound balance by the plurality of sound output units 31, 32, 33, 34, 35, and 36. To adjust the sound balance.

In this case, when the sound balance adjustment is performed by the selector 50, sampling sound signals stored in the memory unit 40 are transmitted through the plurality of sound output units 31, 32, 33, 34, 35, and 36. The output is based on the set rules.

In other words, the sampling sound signals may be sequentially output from the plurality of sound output units 31, 32, 33, 34, 35, and 36, or may be output in the set order or simultaneously. 31, 32, 33, 34, 35, 36) to adjust the sound balance.

The sound balance adjusting device for vehicle audio according to the present invention configured as described above may be sequentially output through a plurality of sound output units installed inside the vehicle, or may be output in a set order, or multiple sampling sound signals including the same sound signal may be provided. Since the driver can listen to the sampling sound signal at the same time and adjust the volume or delay time of the plurality of sound output units to adjust the sound balance of the vehicle audio, the sound balance can be adjusted without using a separate sound source. There is an effect that the convenience of the driver can be improved.

Claims (4)

A plurality of sound output units installed inside the vehicle and outputting sound signals; A memory unit for storing sampling sound signals output through the plurality of sound output units; And a selection unit for allowing a user to select whether to adjust the sound balance by the plurality of sound output units through sampling sound signals stored in the memory unit. The method of claim 1, And the selector is configured to output the sampling sound signal to the plurality of sound output units sequentially. The method of claim 1, And the selector is configured to output the sampling sound signal according to a set order of the plurality of sound output units. The method of claim 1, And the selection unit is configured to output the sampling sound signals simultaneously from the plurality of sound output units.