KR19990056443A - Automatic Output Direction and Intensity Control Device for Treble Speakers - Google Patents

Abstract

The present invention provides an apparatus for automatically adjusting the output direction and intensity of the installed high-pitched speakers L and R in order to provide the best sounding experience of high-pitched sound provided in stereo at a desired listening position in a limited space. Therefore, the apparatus according to the present invention, the command input unit for inputting the listening position information to provide the highest sense of listening in the best state, a sensor installed in consideration of the listener's ear in a place where the listener can be located in a limited space, the sensor installed The controller detects the sound pressure of the sound source output from the high-definition speakers L and R through the controller and controls the sound pressure output from the sensor installed at the position applied through the command application unit to be the maximum. A driver for adjusting the output direction of the, and the sound source providing unit that is controlled by a controller for controlling the intensity of the sound source output through the high-only speakers L and R. Therefore, it is possible to provide the optimum high sound at a desired listening position in a limited space.

Description

Automatic Output Direction and Intensity Control Device for Treble Speakers

The present invention relates to an apparatus for automatically adjusting the output direction and intensity of a high-pitched speaker, and in particular, to automatically adjust the output direction and intensity of a high-pitched speaker according to the position of a listener within a limited space, such as an auto. It relates to a device for.

In general, the speaker structure provided in the acoustic system is very diverse. For example, a sound system that outputs a reproduced sound source in a 3 way system is provided with speakers for separately outputting high, mid, and bass sounds, and a sound system that outputs a reproduced sound source in a 2 way system, Speakers are provided for separately outputting high-pitched sounds.

As such, speakers capable of outputting high, mid, and low frequencies have different diameters of the diaphragm. That is, the loudspeaker for high sound output can reproduce effective sound for high sound when the diaphragm of the diaphragm is small, and the loudspeaker for low sound output can reproduce effective sound for low sound when the diaphragm of the diaphragm is relatively large. If the diaphragm of the diaphragm of the diaphragm and the diaphragm of the loudspeaker of the bass output is about halfway, an effective diaphragm can be reproduced.

However, even in the case of high-pitched sound, even if a diaphragm is provided to have an optimal reproduction condition as described above, the listening feeling (or stereotactic feeling) varies greatly depending on the output direction of the speaker and the position of the listener's ear. This is because the human auditory characteristics are sensitive to the change of left and right position for the treble. Therefore, when there is an obstacle between the high-pitched speaker and the listener or when the output direction of the high-pitched speaker is not toward the listener's ear, the sense of listening to the high pitch is lower than when the obstacle is not present or toward the listener's ear. Therefore, in the case of high-definition speakers, it is necessary to install in consideration of the surrounding environment.

However, the existing high-pitched speakers installed in a limited space were fixed in a position that considered only a certain listener. That is, in a limited space such as an auto, a high-pitched speaker is fixed at a position in consideration of a feeling of listening to a driver and a passenger, so that a passenger in the rear seat cannot properly listen to high-pitched sounds.

The present invention has been made to improve the above-described drawbacks, and the output direction of the high-pitched speaker and the intensity of the sound source to be output so that the listening feeling for the high-pitched sound at the desired listening point is optimal in a limited space such as a car. An object of the present invention is to provide a device for automatically adjusting the output direction and intensity of a treble-only speaker for automatic adjustment.

In order to achieve the above object, the apparatus for automatically adjusting the output direction and intensity of a high-pitched speaker according to the present invention is a sound system in which a high-pitched speaker L and a high-pitched speaker R are separately installed to provide a high-pitched sound reproduced in a limited space. A sensor, comprising: sensors installed in consideration of a place where a listener is to be located in a limited space; A command application unit for inputting listening position information for providing an optimum listening degree to a high tone; A driver for rotating the high-pitched speaker L and the high-pitched speaker R up / down or left / right to control the output directions of the high-pitched speaker L and the high-pitched speaker R; A sound source providing unit capable of adjusting and providing intensity of a sound source output through the high-pitched speaker L and the high-pitched speaker R; And a controller for controlling the operation of the driving unit and the sound source providing unit such that the sensing result of the sensors corresponding to the predetermined listening position information applied through the command applying unit among the sensing results of the sensors becomes a value capable of providing an optimum listening degree. Characterized in that.

1 is a block diagram of an output direction and intensity automatic adjustment device of a dedicated loudspeaker according to the present invention,

2 is a diagram illustrating a positional relationship between high-definition speakers and sensors in a passenger car.

<Description of the symbols for the main parts of the drawings>

100: command grant unit 110: controller

120: sensor L1 121: sensor R1

122: sensor L2 123: sensor R2

130: driver 141: Twitter L

142: Twitter R 150: sound source providing unit

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

1 is a block diagram of a device for automatically adjusting the output direction and intensity of a treble-only speaker according to the present invention, wherein a command applier 100 may input information on a listening position where a listener wants to receive optimal treble; Controller 110 for controlling the optimal high sound can be provided to the listening position applied through the command application unit 100, tweeter L (141) respectively installed on the left and right of the space to provide high-pitched stereo; Twitter R (142), sensors 120-123 installed in consideration of the listener's ear in the position where the listener may be located in the space, sensing results and commands transmitted from the sensors (120-123) The controller 110 for controlling the output direction and intensity of the tweeter L 141 and the tweeter R 142 by the listening position information applied through the unit 100 is controlled by the controller 110 and the tweeter L 141. ) And tweeter R (142) Sound source providing unit 150 that is controlled by the driver 130, the controller 110 for driving to the left / down, the controller 110 to adjust the intensity of the sound source output through the tweeter L (141) and tweeter R (142) It consists of.

In particular, the present embodiment illustrates a case of a passenger car, and the sensors 120 to 123 are installed in consideration of four occupants as shown in FIG. 2. That is, the sensor L1 (120) considers the occupant of the driver's seat, the sensor R1 (121) considers the occupant of the passenger seat, the sensor L2 (122) considers the occupant of the back of the driver's seat, and the sensor R2 (123) is the back of the passenger seat. It is installed considering the occupants. The sensors 120 to 123 each include two sound pressure sensors in consideration of the passenger's ear. These sensors 120 to 123 may be installed in consideration of five occupants, and the number of installations is determined according to a change in conditions of a limited space. However, it is assumed that the position of the listener in the space is fixed to some extent.

Tweeter L (141) and tweeter R (142) is a dedicated high-pitched speaker to provide a high-pitched reproduction, tweeter L (141) outputs the high-channel of the L channel, tweeter R 142 is a treble of the R channel Outputs

The output direction and intensity automatic adjustment device of the treble-only speaker configured as described above is driven as follows.

First, when listening position information for providing an optimum listening feeling is applied to the high pitch sound reproduced through the command application unit 100, the controller 110 transmits the listening position information to the controller 110. At this time, when the listening position information applied as shown in FIG. 2 is provided with a sensor, position information of one of the driver's seat, the passenger seat, the rear seat of the driver's seat, and the rear seat of the passenger seat may be input. For example, if the driver wants to provide optimal treble to the driver's seat, the listener approves the position information of the driver's seat through the command applier 100 and wants to provide optimal treble to the passenger behind the passenger seat. The location information for this is applied.

When predetermined listening position information is applied from the command application unit 100, the controller 110 drives the sensor L1 120, the sensor R1 121, the sensor L2 122, and the sensor R2 123. Accordingly, as shown in FIG. 2, the sensor L1 120, the sensor R1 121, the sensor L2 122, and the sensor R2 123 each consisting of two sound pressure sensors may be tweeter L 141 and tweeter R 142, respectively. Sensing the sound pressure of the sound source output from the), and transmits the sensed results for each sound pressure sensor. Accordingly, the controller 110 receives two sound pressure sensing results for each position. For example, the sensing result of the sensor L1 120 is provided by the sound pressure sensor installed in consideration of the driver's left ear and the sound pressure sensor installed in consideration of the driver's right ear.

As described above, when the sensing result transmitted from each of the sensors 120 to 123 is detected, the controller 110 detects all the sensing results of the two sound pressure sensors installed at the listening position applied from the command application unit 100. Find out if it is the maximum. As a result of the grasping, if all of them are maximum, the driver 130 and the sound source providing unit 150 are maintained without separate control.

However, as a result of the grasping, even if one of the two sensors installed in the corresponding position is not the maximum sensing result, the operation of the driver 130 and the sound source providing unit 150 is controlled so that the sensing result of the sensor is not maximum. .

For example, when the listening position information applied from the command application unit 100 is the driver's seat, the controller 110 has a maximum sensing result of two sound pressure sensors installed in the sensor L1 120. Figure out whether In this case, the sensing result may be obtained by driving all the sensors 120 to 123, or may be obtained by driving only the corresponding sensor L1 120.

As a result of the determination, when the sensing results of the two sound pressure sensors constituting the sensor L1 120 are both detected as maximum values, the controller 110 does not control the driver 130 and the sound source providing unit 150. However, when only the sensing result of the sound pressure sensor located on the right side of the two sound pressure sensors is not the maximum value, the driver 130 is controlled to rotate the output direction of the tweeter R 142 toward the driver's seat. Then, the L / R amplification operation of the sound source providing unit 150 is controlled to further amplify the R treble output from the tweeter R 130. This control is repeated until the sensing result of the sound pressure sensor located on the right side reaches the maximum value.

In addition, when only the sensing result of the sound pressure sensor located on the left of the above-described two sound pressure sensors located on the sensor L1 120 is not the maximum value, the controller 110 controls the driver 130 to control the tweeter L 141. Rotate the output direction to the driver's seat. In addition, the L / R amplification operation of the sound source providing unit 150 is controlled to further amplify and output the L high sound output through the tweeter L 141. This control is also repeated until the sensing result of the sound pressure sensor located on the left side reaches the maximum value.

When the sensing result values of all the sound pressure sensors located in the sensor L1 120 are not the maximum, the controller 110 operates the driver 130 and the sound source providing unit 150 to simultaneously perform the above-described respective control processes. To control. That is, the driver 130 is controlled so that the tweeter L 141 and the tweeter R 142 are moved up / down or left and right at regular intervals, and the sound source is output through the tweeter L 141 and the tweeter R 142. The amplification operation of the sound source providing unit 150 is controlled to maximize the intensity at the same time. If the sensing result of one of the above operations is obtained at the maximum, only the side which is not obtained at the maximum is controlled as described above.

The driver 130 is composed of motors (not shown) capable of rotating the tweeter L 141 and the tweeter R 142 up / down and left / right, respectively, to control signals transmitted from the controller 110. By driving the motor by setting the output direction of the tweeter L (141) and / or tweeter R (142).

The sound source providing unit 150 performs L / R amplification processing on the reproduced high sound and transmits them to the tweeter L 141 and the tweeter R 142, respectively. When a signal for controlling the L / R amplification from the controller 110 is applied, The L / R amplification process is performed according to the applied signal and transmitted to the tweeter L 141 and the tweeter R 142, respectively.

As described above, the present invention is optimal for a desired point by automatically adjusting the output direction and intensity of the treble-only speaker so that the sensing result of the sensor installed at the point where the maximum listening feeling is to be felt in a limited space such as a car is a maximum value. It is possible to provide high pitched sound, which is effective to improve the listening environment.

Claims (4)

In a sound system in which a high-pitched speaker L and a high-pitched speaker R are separately installed to provide a high-pitched sound reproduced in a limited space, Sensors installed in consideration of a place where a listener is to be located in the limited space; A command application unit for inputting listening position information for providing an optimum listening degree to the high tone; A driver for controlling the output directions of the high-pitched speaker L and the high-pitched speaker R by rotating the high-pitched speaker L and the high-pitched speaker R up / down or left / right; A sound source providing unit capable of adjusting and providing intensity of a sound source output through the high-pitched speaker L and the high-pitched speaker R; And Controlling the operation of the driving unit and the sound source providing unit such that the sensing result of the sensors corresponding to the predetermined listening position information applied through the command application unit is a value capable of providing the optimum listening degree among the sensing results of the sensors; Automatically adjusting the output direction and intensity of the treble speaker, characterized in that it comprises a controller for. The apparatus of claim 1, wherein the sensors are configured to allocate two sound pressure sensors considering the position of the listener's ear for each place where the listener is to be located. The method of claim 1, wherein the sound source providing unit adjusts the intensity of the sound source by adjusting the amount of amplification of the high sound output to the high-pitched speaker L and the high-pitched speaker R respectively by the control signal applied from the controller Output direction and intensity automatic adjustment device for dedicated speaker. According to claim 1, wherein the driver is provided with a separate motor for each of the high-only speaker L and the high-only speaker R to perform the up / down, left / right rotation processing output direction of the high-only speakers, characterized in that And intensity automatic control.