Circuit for eliminating human voice in music
By using the bipolar chip of the CXA1642M model to process audio signals, the elimination of vocals in music is achieved, and the complex and cost problems in the existing technology are solved, the design process is simplified and the reliability of the equipment is improved.
Patent Information
- Application Number
- CN202421533623.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing audio equipment eliminates the complex and costly circuitry of vocals in music, resulting in a long design cycle.
Using the bipolar chip of CXA1642M model, the audio signals are input through its pin 1 and pin 8, and the processed signals are output on the 5th pin to achieve the cancellation of human voice. The circuit is simple, easy to debug, and has few faults.
It realizes the low-cost and simple circuit music vocal cancellation function, shortens the design cycle and improves the reliability of the equipment.
Smart Images
Figure CN222839790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sound, in particular to a circuit for eliminating human voice in music. Background Art
[0002] Currently, many audio systems use DSP chips to eliminate vocals in music, which are not only expensive but also have complex circuits. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a circuit for eliminating human voice in music, which has low cost, simple circuit and shortened design cycle.
[0004] In order to solve the above technical problems, the technical solution of the utility model is: a circuit for eliminating human voice in music, including a bipolar chip U1, the model of the bipolar chip U1 is CXA1642M, the audio signal is input through the 1st and 8th pins of the bipolar chip U1, the 5th pin of the bipolar chip U1 outputs the signal, the 7th pin of the bipolar chip U1 is connected to the power supply, the 6th pin of the bipolar chip U1 is grounded, and the 2nd and 3rd pins of the bipolar chip U1 are externally adjusted for the built-in MIX amplifier to adjust the output signal size. The principle of the utility model: the body sound is input to the IC processing through the 1st and 8th pins of the bipolar chip U1, and the signal is output through the 5th pin after the human voice is eliminated; the CXA1642M chip is used, which has low cost, simple circuit, easy debugging and few faults.
[0005] As an improvement, the second pin of the bipolar chip U1 is combined with the third pin through a resistor R1 and then grounded through a capacitor C1; the fourth pin of the bipolar chip U1 is grounded through a capacitor C2; the fifth pin of the bipolar chip U1 is grounded through a capacitor C3 and a resistor R2 in turn; and the seventh pin of the bipolar chip U1 is grounded through a capacitor C4.
[0006] Compared with the prior art, the utility model has the following beneficial effects:
[0007] The CXA1642M chip is used to eliminate the human voice in the music. It has low cost, simple circuit, easy debugging and few faults. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is the circuit diagram of the utility model. DETAILED DESCRIPTION
[0009] The utility model will be further described below in conjunction with the accompanying drawings.
[0010] like Figure 1As shown, a circuit for eliminating human voices in music includes a bipolar chip U1, and the model of the bipolar chip U1 is CXA1642M. The audio signal is input through the 1st and 8th pins of the bipolar chip U1; the 2nd pin of the bipolar chip U1 is combined with the 3rd pin through the resistor R1 and then grounded through the capacitor C1, and the 2nd and 3rd pins of the bipolar chip U1 are externally adjusted by the built-in MIX amplifier to adjust the output signal size; the 4th pin of the bipolar chip U1 is grounded through the capacitor C2; the 5th pin of the bipolar chip U1 is grounded after passing through the capacitor C3 and the resistor R2 in turn, and the 5th pin of the bipolar chip U1 outputs a signal; the 6th pin of the bipolar chip U1 is grounded; the 7th pin of the bipolar chip U1 is connected to the power supply, and the 7th pin of the bipolar chip U1 is grounded through the capacitor C4.
[0011] The principle of the utility model is as follows: body sound is input to IC through the 1st and 8th pins of the bipolar chip U1 for processing, and after the human voice is eliminated, the signal is output through the 5th pin; the CXA1642M chip is adopted, which has low cost, simple circuit, easy debugging and few faults.
Claims
1. A circuit for eliminating human voice in music, characterized in that: It includes a bipolar chip U1, the model of the bipolar chip U1 is CXA1642M, the audio signal is input through the 1st and 8th pins of the bipolar chip U1, the 5th pin of the bipolar chip U1 outputs the signal, the 7th pin of the bipolar chip U1 is connected to the power supply, the 6th pin of the bipolar chip U1 is grounded, and the 2nd and 3rd pins of the bipolar chip U1 are external adjustments of the built-in MIX amplifier to adjust the output signal size.
2. A circuit for eliminating human voice in music according to claim 1, characterized in that: The second pin of the bipolar chip U1 is combined with the third pin through a resistor R1 and then grounded through a capacitor C1; the fourth pin of the bipolar chip U1 is grounded through a capacitor C2; the fifth pin of the bipolar chip U1 is grounded through a capacitor C3 and a resistor R2 in sequence; the seventh pin of the bipolar chip U1 is grounded through a capacitor C4.