JPH05153700A - Left and right loudspeaker sound balance adjusting device - Google Patents

Abstract

PURPOSE:To automatically adjust the sound volume balance of the left and the right loudspeakers being suitable for a viewer's position, in the viewer's position. CONSTITUTION:From the left and the right loudspeakers 2, 3, unit balance adjusting sounds of the same level are outputted alternately, and a microphone 14 provided in a remote controller 4, a level detector 15, a memory 16 for storing a level of one of the unit balance adjusting sounds, data stored in this memory, and the other unit balance adjusting sound are compared. This device is provided with a comparator circuit 17 for outputting a balance adjusting signal for showing from which loudspeaker a larger unit balance adjusting sound is outputted and its level difference, and the balance of both loudspeaker sounds is adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a left / right speaker sound balance adjusting device for adjusting the balance of left / right speaker sounds from the position of a viewer.

[0002]

2. Description of the Related Art Conventionally, in order to adjust the balance of the left and right speaker sounds suitable for the position of the viewer, the user adjusts the balance of the left and right speaker sounds by operating the remote controller or depending on his or her sense of hearing. I had to go from the position to the main body of the audio equipment and operate the adjustment knob to make adjustments.

[0003]

As described above, in the conventional audio equipment, the volume of the left and right speakers is adjusted depending on the listening feeling of the viewer, but the work is complicated and the adjustment is successful. It had the drawback of not being able to do well.

[0004]

SUMMARY OF THE INVENTION The present invention has been invented in view of the above-mentioned drawbacks of the prior art, and includes first and second speakers arranged on the left and right, and the first and second speakers. The audio device main body connected to the audio device main body and a remote controller for transmitting a remote control signal to the audio device main body. A signal is alternately supplied to the first and second speakers, and transmission switching means for alternately outputting the first and second unit balance adjustment sounds from each speaker and the outputs of the first and second speakers are provided. First and second volumes to be adjusted, a level control circuit for automatically controlling these volumes independently, and the remote control signal A remote control signal detector for receiving and detecting, wherein the remote controller includes a microphone, a remote control signal transmitter for oscillating the remote control signal, and a balance from the first and second speakers received by the microphone. A level detector for detecting the level of the adjustment sound and level data of one of the first and second unit balance adjustment sounds from the first and second speakers detected by the level detector are stored. The memory and the level data stored in the memory are compared with the other level data of the first and second unit balance adjustment sounds, and the level difference and a balance adjustment signal indicating which is larger or smaller are output to the remote The level control circuit is provided with a comparator circuit for supplying the control signal generator. Over preparative control signal the first in accordance with balance adjustment signal included in the
Alternatively, the present invention provides a left and right speaker sound balance adjustment device characterized by adjusting the second volume. Further, the present invention further provides a left and right speaker sound balance adjusting device in which the remote controller is provided with switch means for controlling the operation of the balance adjusting sound signal generator.

[0005]

Therefore, according to the present invention, the balance of the left and right speaker sounds suitable for the viewing position can be adjusted only by the viewer pointing the remote controller toward the audio device main body at the viewing position.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic view of an audio system equipped with a left and right speaker sound balance adjusting device according to the present invention. The arranged first and second speakers 4 are remote controllers for transmitting and receiving remote control signals to and from the main body 1 to control the main body 1, respectively.

As shown in FIG. 2, the main body 1 has a remote control signal detector 5 for receiving and detecting a remote control signal, and a control circuit 6 for analyzing and processing the remote control signal received and detected by the detector 5.
And a balance adjustment sound signal generator 7 for generating a balance adjustment sound signal, and a balance adjustment sound signal generated by the generator 7 for receiving the signal for a predetermined time in the first and second speakers 2 and 3. It is provided so as to adjust the signal levels to the transmission switcher 8 and the first and second speakers 2 and 3 which are alternately supplied at intervals and output the first and second unit balance adjustment sounds from these speakers. An audio signal from an audio signal source (not shown) and first and second volumes 9 and 10 for adjusting the signal levels of the balance adjustment sound signal, and a level control circuit 11 for controlling these volumes 9 and 10. There is.

The remote controller 4 is ON-
OFF switch 12 and automatic balance adjustment switch 13
, A microphone 14, a level detector 15 for detecting the levels of the first and second unit balance adjustment sounds input from the microphone 14, and an output from the first speaker 2 detected by the level detector 15. The memory 16 for storing the level of the first unit balance adjustment sound, the level of the first unit balance adjustment sound stored in the memory 16, and the level detection at the next timing of the first unit balance adjustment sound A comparison circuit 17 which compares the level of the second unit balance adjustment sound of the second speaker 3 detected by the device 15 and outputs a balance adjustment signal indicating which difference is larger. The balance adjustment signal output from the comparison circuit 17 and the signal obtained from the ON-OFF switch 12 and the automatic balance adjustment switch 13 are used as a remote control signal. Remote control transmitter 1
Remote control signal forming circuit 1 output from 9
It consists of 8 and.

The present invention is constructed as described above, and its operation will be described below. Now, at the position where the viewer wants to listen to music, when the ON-OFF switch 12 of the remote controller 4 is turned ON and then the automatic balance adjustment switch 13 is turned ON, the remote control signal forming circuit 18 causes the switch 13 to switch. ON
Based on the above, an automatic balance adjustment signal is formed, and this is output from the remote control transmitter 19 as a remote control signal.

Then, the remote control signal detector 5 of the main body 1 receives the remote control signal,
The control circuit 6 determines that this remote control signal is an automatic balance adjustment signal and drives the balance adjustment sound signal generator 7. The generator 7 accordingly supplies a non-audible, balanced sound signal of a specific frequency.

Based on the operation of the generator 7, the transmission switching device 8 alternately supplies the balance adjusting sound signal to the first and second volumes 9 and 10 in a constant time unit, and the first volume corresponding to these volumes. First and second unit balance adjustment sounds are output from the first and second speakers 2 and 3.

When the first and second unit balance adjustment sounds are output from the speakers in this manner, the microphone 14 of the remote controller 4 on the viewer side receives the sounds and converts them into an electric signal for level detection. Supply to the container 15.

The level detector 15 first A / D-converts the level data of the first unit balance adjustment sound sent from the first speaker 2 and stores it in the memory 6.
Next, the level of the second unit balance adjustment sound sent from the second speaker 3 is detected, A / D converted, and supplied to one input terminal of the comparator 7.

The comparator 7 compares this input data with the level data of the first unit balance adjustment sound stored in the memory 6, and outputs a balance adjustment signal indicating which is the difference and which is larger. Generated, and passes through the remote control signal forming circuit 18 and the remote control signal transmitter 1
9 outputs as a remote control signal.

This remote control signal is received and detected by the remote control signal detector 5 and input to the control circuit 6. The control circuit 6 analyzes the content of the balance adjustment signal indicated by the remote control signal,
A signal indicating the analysis result is supplied to the level control circuit 11. As a result, the level control circuit 11 sets the corresponding level control signal, for example, the volume of the first speaker 2 to "+3".
A level control signal for raising the level is supplied to the first volume 9, and the first volume 9 is adjusted to adjust the first speaker 3
Increases the volume of the output sound.

The balance adjustment signal is the first and second balance adjustment signals.
If the levels of the unit balance adjustment sounds are equal, the level control circuit 11 does not adjust any of the volumes.

As described above, at the viewer's position,
The control circuit 6 stops the operation of the balance adjusting sound signal generator 7 when the volume of the balance adjusting sound output from both speakers 2 and 3 is heard equally.

After that, based on the adjusted volume positions of the first and second volumes 9 and 10, the volume of both speakers is balanced together with the operation amount of the main volume knob (not shown). You can adjust with to enjoy the music performance.

[0019]

Since the present invention is configured as described above, an excellent left and right speaker sound balance adjusting device capable of automatically adjusting the sound volume of the left and right speakers according to the position of the viewer with respect to the audio device. Can be provided.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an audio system including an embodiment of a left and right speaker sound balance adjusting device according to the present invention.

FIG. 2 is a block-like circuit diagram showing an embodiment of the left and right speaker sound balance adjusting apparatus according to the present invention.

[Explanation of symbols]

 1 Audio Equipment Main Body 2 First Speaker 3 Second Speaker 4 Remote Controller 5 Remote Control Signal Detector 7 Balance Adjustment Sound Signal Generator 8 Transmission Switcher 9 First Volume 10 Second Volume 11 Level Control Circuit 14 Microphone 15 level detector 16 memory 17 comparison circuit 19 remote control transmitter

Claims (2)

[Claims] 1. Left and right first and second speakers, an audio device main body connected to the first and second speakers, and a remote controller for transmitting a remote control signal to the audio device main body. The audio device main body comprises a balance adjusting sound signal generator for generating a balance adjusting sound signal, and the balance adjusting sound signal is alternately supplied to the first and second speakers, and the first and second speakers are alternately supplied. And a transmission switching means for outputting a second unit balance adjustment sound, first and second volumes for adjusting the outputs of the first and second speakers, and a level for automatically controlling these volumes independently. A remote control signal detector for receiving and detecting the remote control signal; Rollers and microphone, remote control signal transmitter and said first received by the microphone for oscillating said remote control signal
And a level detector for detecting the level of the balance adjustment sound from the second speaker, and any of the first and second unit balance adjustment sounds from the first and second speakers detected by the level detector. A memory that stores one level data is compared with the level data stored in the memory and the other level data of the first and second unit balance adjustment sounds, and the level difference and which is larger or smaller. And a comparison circuit for supplying a balance adjustment signal indicating that to the remote control signal generator, the level control circuit according to the balance adjustment signal included in the remote control signal.
A left and right speaker sound balance adjusting device, which is for adjusting the volume of the speaker. 2. The left and right speaker sound balance adjusting apparatus, wherein the remote controller according to claim 1 is provided with a switch means for controlling the operation of the balance adjusting sound signal generator.