Controller for changing and optimizing tone of electroacoustic musical instrument

Abstract

The invention relates to a controller for changing and optimizing tone of an electroacoustic musical instrument. The controller comprises the following components: an inductor L1, an electromagnetic sound pickup, a volume controller P1, a capacitor C1, a resistor R1, a capacitor C2, a resistor R2, a capacitor C3, an integral filter unit and a tone controller P2, wherein the inductor L1, the electromagnetic sound pickup, the volume controller P1, the capacitor C1 and the resistor R1 form a frequency locking structure; the capacitor C2 and the resistor R2 form an alternative compensation structure; the signal of the electromagnetic sound pickup is input from the anode to C1 and R1, the other end of the C1 is connected to the third pin of the P1 and simultaneously connected to the R2, and the other end of the R2 is grounded; the other end of the R1 is connected to the first pin of the P1 and simultaneously connected to the C2, and the other end of the C2 is grounded; the second pin of the P1 is connected to the C3, and the other end of the C3 serves as an audio signal output. The P1 controls tone. An integral serial connection and local alternative parallel connection mode is adopted, local tone needing optimization is locked by fixing electronic elements, and different elements are connected in parallel in an alternative manner to generate mutual compensation of tone and frequency. Therefore, the tone is meticulous, and comprehensively promoted and changed.

Description

technical field [0001] The invention relates to a controller for changing and optimizing the timbre of an electro-acoustic musical instrument, which belongs to the fields of electro-acoustic musical instruments and other auxiliary equipment, and tone controllers. Background technique [0002] Electroacoustic musical instruments are not equivalent to electronic musical instruments, such as electric guitars. The principle is to "perceive" the vibration of the strings through the magnetic field generated by the electromagnetic pickup, and transmit the signal to the instrument amplifier (speaker). The electromagnetic pickup can be understood as an inductance and capacitance, which generates electromagnetic force through the magnetic core and the coil, so the tone of the pickup itself cannot be adjusted due to the limitation of the number of coil turns and the magnetic force of the magnetic core. The basic principle determines the lack of timbre adjustability, and a circuit must ...

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Problems solved by technology

And this structure is an overall frequency adjustment, which can only play a simple "difference between light and dark". For example: when C1 is a 22nf capacitor and P1 is an A250K potentiometer, the maximum dim tone is 10db (limit depth), and it acts as an overall tone. dimmed

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