Audio balance controller

Abstract

The invention discloses an audio balance controller. The audio balance controller comprises a capacitor C1, a potentiometer RP1, a potentiometer RP2, a resistor R1, a potentiometer RP3 and a potentiometer RP4; one end of the capacitor C1 is connected with an input signal V1; the other end of the capacitor is connected with the resistor R1; the other end of the resistor R1 is connected with one end of the potentiometer RP1 and a sliding sheet of the potentiometer RP1 separately; the other end of the potentiometer RP1 is connected with a resistor R5 and a resistor R2; the other end of the resistor R2 is connected with one end of the potentiometer RP2 and one end of the potentiometer RP5 separately; a sliding sheet of the potentiometer RP5 is connected with the other end of the resistor R5 and a resistor R6 separately and is grounded; and the other end of the resistor R6 is connected with one end of the potentiometer RP4 and a resistor R4. The audio balance controller can adjust balance of a left sound channel and a right sound channel, enables the left sound channel and the right sound channel to have equal effective gain, and is simple in circuit structure, low in cost and high in market competitiveness.

Description

technical field [0001] The invention relates to an audio controller, in particular to an audio balance controller. Background technique [0002] All devices that produce sound from speakers, such as amplifiers and televisions in combined audio systems, generally use audio controller circuits to control the volume of the speakers. In the two-channel audio circuit, the gain of the left and right channels is required to be equal. Although the circuit structure and component parameters of the left and right channels are the same, due to the discreteness (inconsistency) of the component parameters and after using for some time Changes in the parameters of the left and right channel amplifiers may lead to unequal gains of the left and right channel amplifiers, which will affect the stereo effect, so an audio balance controller must be set to make the gains of the left and right channels equal. Many existing audio balance The controllers are all designed with dedicated chips. On t...

AI Technical Summary

Problems solved by technology

In the two-channel audio circuit, the gain of the left and right channels is required to be equal. Although the circuit structure and component parameters of the left and right channels are the same, due to the discreteness (inconsistency) of the component parameters and after using for some time Changes in the parameters of the left and right channel amplifiers may lead to unequal gains of the left and right channel amplifiers, which will affect the stereo effect, so an audio balance controller must be set to make the gains of the left and right channels equal. Many existing audio balance The controllers are all designed with dedicated chips. On the one hand, the cost is high, and on the other hand, the ability to resist electromagnetic interference is low due to the addition of chip components.

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