Built-in sound effect processor with multiple control modes

By incorporating a DSP chip, bypass control module and data transmission module in the instrument, the control method of the instrument sound effect processor is enriched, the problem of single control function is solved, and the switching and flexible control of multiple control methods is realized, which improves the player's user experience and the convenience of sound effect adjustment.

CN223308756UActive Publication Date: 2025-09-05广东天谱科技集团有限公司
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Patent Information

Application Number
CN202421720143.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-09-05
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

The existing musical instruments have a single control function and cannot be used with external devices or software, resulting in limited control methods for performers and inability to choose corresponding control methods according to actual needs, which affects the performance quality and experience.

Method used

A built-in sound processor with DSP chip is designed, integrating bypass control module, data transmission module and power supply module, supporting sound control through control panel, APP, Bluetooth communication and external devices, enriching the control mode.

Benefits of technology

It enables instrument players to freely switch between multiple control methods, improves the convenience of operation and playing experience, can flexibly adjust the sound effects according to the rhythm and mood of the music, and improves the vividness and appeal of the performance.

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Abstract

The utility model discloses a built-in sound effect processor with multiple control modes, comprising a DSP chip, the DSP chip is electrically connected with a power supply module, a data transmission module and a bypass control module, the bypass control module is a signal switch SW1, the signal switch SW1 is provided with a control panel, the control panel is provided with bypass function buttons, and the bypass function buttons are electrically connected with the power supply module. A pin 1 and a pin 6 of the signal switch SW1 are connected with a pickup tail pin, a pin 2 is connected with a pickup coil / pickup strip, a pin 3 is connected with the operational amplification module, a pin 4 is connected with the battery and the switch, a pin 5 is connected with an eighteenth pin and a seventeenth pin of the DSP chip, and the operational amplification module is connected with an eleventh pin of the DSP chip. According to the utility model, by arranging the bypass control module and the data transmission module, the bypass control function is realized, the control modes are enriched, the defects that the control function of a built-in sound effect processor of a traditional string instrument is single, and the operation of a player is not changed during use are overcome, various control modes can be freely switched, and the operation convenience and experience are greatly improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of musical instrument sound effect processing and control, and in particular relates to a built-in sound effect processor with multiple control modes. Background Art

[0002] As the public's requirements for the sound quality and sound effects of musical instruments become higher and higher, sound effect processors, as important audio equipment, are widely used inside musical instruments because they can enhance the sound of the instrument, shape the timbre of the instrument, and have real-time control features. They play a role in changing the sound quality, timbre, delay and other characteristics. During performance, it was found that although the existing built-in sound effect processors of musical instruments are easier to operate and use, the control functions are simple. The sound effect parameters can only be adjusted by the control buttons or knobs on the instrument. External devices or software cannot be used. As a result, the control method is limited. Performers cannot choose the corresponding control method according to actual needs. This is not conducive to enriching the performance control method and performance experience, nor is it conducive to improving performance quality. Utility Model Content

[0003] The utility model provides a built-in sound effect processor with multiple control modes.

[0004] The utility model is implemented through the following technical solution: it includes a DSP chip, the DSP chip is electrically connected to a power supply module, a data transmission module and a bypass control module, and is characterized in that: the 11th pin of the DSP chip is connected to the bypass control module, and the 18th and 17th pins are connected to the bypass control module, and the bypass control module is connected to the pickup and the controller module for sound effect control; the bypass control module is a signal switch SW1, and the signal switch SW1 is equipped with a control panel, and a bypass function button is set on the control panel, pins 1 and 6 of the signal switch SW1 are connected to the pickup tail nail, pin 2 is connected to the pickup coil / pickup bar, pin 3 is connected to the operational amplifier module, pin 4 is connected to the battery and the switch, pin 5 is connected to the 18th and 17th pins of the DSP chip through a capacitor C26 and a resistor R45, and the operational amplifier module is connected to the 11th pin of the DSP chip through a resistor R42, a capacitor C47, and a capacitor C48.

[0005] Furthermore, the bypass control module is a signal switch SW1, which is equipped with a control panel. A bypass function button is set on the control panel. Pins 1 and 6 of the signal switch SW1 are connected to the pickup tail nail, pin 2 is connected to the pickup coil / pickup bar, pin 3 is connected to the operational amplifier module, and a capacitor C6 and a resistor R6 are provided between pin 3 and the operational amplifier module. Pin 4 is connected to the battery and the switch, and pin 5 is connected to pins 18 and 17 of the DSP chip. Capacitor C26 and resistor R45 are provided on pin 5 of the signal switch SW1.

[0006] Furthermore, the operational amplifier module includes an operator U1A, an operator U2A, and an operator U2B, wherein the positive input terminal of the operator U1A is connected to pin 3 of the signal switch SW1 and the +2V5 power supply, and the output terminal is connected to the capacitor C44, the +2V5 power supply, and the positive input terminal of the operator U2A, and the output terminal is also connected to the musical instrument, and the negative input terminal of the operator U1A is connected to the output terminal of the operator U1A;

[0007] The negative input terminal of the arithmetic unit U2A is connected to the capacitor C51, the capacitor C52, and the arithmetic unit U2B in sequence, and the output terminal is connected to the transistor Q2 and the 11th pin of the DSP chip. A branch circuit is provided at this port. The branch circuit is provided with a capacitor C45 and a resistor R10 connected to the capacitor C51 of the arithmetic unit U2B, the capacitor C51 is connected to the capacitor C52, and the capacitor C52 is connected to the positive input terminal of the arithmetic unit U2B and the +2V5 power supply. The negative input terminal of the arithmetic unit U2B is connected to its output terminal and the resistor R23 in sequence. The resistor R23 is connected to the connection between the capacitors C51 and C52.

[0008] One port of the transistor Q2 is connected to the resistor R15, the transistor Q3, the resistor R16 and the drive circuit B in sequence, and the other port of the transistor Q2 is connected to the resistor R11 and the negative input end of the operator U2A in sequence. The resistor R11 is connected to the capacitor C46, ​​the resistor R12, the transistor Q1, the resistor R14 and the drive circuit A.

[0009] The beneficial effects of the present invention are: by setting a bypass control module and a data transmission module to realize the bypass control function, enrich the control mode, and solve the shortcomings of the traditional string instrument's built-in sound effect processor having a relatively single control function and the player's control being unchanged when using it. The player can freely switch between multiple control modes when using it, that is, select the APP on the mobile terminal, the bypass function button set on the instrument, the external connection to the foot switch, etc. for real-time control, which greatly improves the player's convenience and experience of use and control, and flexibly adjusts the sound effect according to the rhythm and emotional changes of the music, making the music more vivid and infectious. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a principle block diagram of the utility model;

[0011] Figure 2 Schematic diagram of the circuit structure of the bypass control module;

[0012] Figure 3 This is a schematic diagram of the circuit structure of the DSP chip;

[0013] Figure 4 Schematic diagram of the circuit structure of the data transmission module;

[0014] Figure 5 This is a schematic diagram of the circuit structure of the power supply module; DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation methods are described in detail below with reference to the accompanying drawings.

[0016] like Figures 1 to 5 The built-in sound effect processor with multiple control modes shown includes a DSP chip, which is electrically connected to a power supply module, a data transmission module, and a bypass control module. Pin 11 of the DSP chip inputs a guitar signal that has been preprocessed to high gain and overload into the DSP for processing, pin 13 is connected to the guitar signal input, and pins 18 and 17 are used for signal output to adjust the sound effect. The bypass control module is a signal switch SW1, which is equipped with a control panel on which a bypass function button is set. Pins 1 and 6 of the signal switch SW1 are connected to the pickup tail nail, pin 2 is connected to the pickup coil / pickup bar, pin 3 is connected to the operational amplifier module, pin 4 is connected to the battery and the switch, and pin 5 is connected to pins 18 and 17 of the DSP chip through capacitor C26 and resistor R45. The operational amplifier module is connected to pin 11 of the DSP chip through resistor R42, capacitor C47, and capacitor C48.

[0017] The operational amplifier module includes an operator U1A, an operator U2A, and an operator U2B. The positive input terminal of the operator U1A is connected to pin 3 of the signal switch SW1 and the +2V5 power supply. The output terminal is connected to the capacitor C44, the +2V5 power supply, and the positive input terminal of the operator U2A. The output terminal is also connected to the musical instrument. The negative input terminal of the operator U1A is connected to the output terminal of the operator U1A.

[0018] The negative input terminal of the arithmetic unit U2A is connected to the capacitor C51, the capacitor C52, and the arithmetic unit U2B in sequence, and the output terminal is connected to the transistor Q2 and the 11th pin of the DSP chip. A branch circuit is provided at this port. The branch circuit is provided with a capacitor C45 and a resistor R10 connected to the capacitor C51 of the arithmetic unit U2B, the capacitor C51 is connected to the capacitor C52, and the capacitor C52 is connected to the positive input terminal of the arithmetic unit U2B and the +2V5 power supply. The negative input terminal of the arithmetic unit U2B is connected to its output terminal and the resistor R23 in sequence. The resistor R23 is connected to the connection between the capacitors C51 and C52.

[0019] One port of the transistor Q2 is connected to the resistor R15, the transistor Q3, the resistor R16 and the drive circuit B in sequence, and the other port of the transistor Q2 is connected to the resistor R11 and the negative input end of the operator U2A in sequence. The resistor R11 is connected to the capacitor C46, ​​the resistor R12, the transistor Q1, the resistor R14 and the drive circuit A.

[0020] The second pin is a standard clock signal pin.

[0021] The 31st pin is a bidirectional data line, which is connected to the resistor R29, the battery, the resistor R43, the power supply, and the capacitor C10; the 32nd pin is a clock line, which is connected to the resistor R30, the battery, the resistor R43, the power supply, and the capacitor C10.

[0022] Capacitors C47 and C48 are provided between the output end of the operator U2A and the 11th pin of the DSP chip.

[0023] The arithmetic unit U1A and the arithmetic unit U2A are respectively connected to a +5VA power supply.

[0024] The power supply module is an independent device with a built-in 3.5V battery. The battery is connected to a boost IC and can directly boost the voltage to 5V. The power supply module is connected to a DSP chip via a data cable or integrated on the DSP chip. The power supply module is connected to a data acquisition and transmission module and a DSP chip. The power supply module is provided with a charging IC (U5) and a boost IC (U6) for converting the AC power directly provided by the power supply into DC power. The voltage output by the battery is converted by the boost IC into a voltage suitable for driving the DSP chip, the data transmission module, and the bypass control module, thereby ensuring that the circuit voltage remains within a stable range when powered by the battery. One end of the power supply module is connected to a battery and a switch respectively to realize power input and output state control. The other end of the power supply module is connected to a USB hub chip, and the USB hub chip is connected to a USB interface and / or a Type-C interface to realize power input.

[0025] The data transmission module is an APP Bluetooth communication module, which is an MCU chip used for signal analog conversion input and output. The data transmission module is an independent device, connected to the DSP chip via a data cable, or integrated on the DSP chip. The model of the Bluetooth chip is BP1048, and the model of the DSP chip is ADAU1761. The data transmission module is provided with a USB interface and / or Type-C interface, a driving circuit, a tuner, and an antenna receiver. The USB interface and / or Type-C interface uses a USB OTG transmission line to transmit data, ensuring data transmission quality and speed and reducing data signal transmission loss.

[0026] Pin 7 of the charging IC (U5) is connected to the USB hub chip, and pins 4 and 10 are connected to the boost IC (U6) and the built-in 3.5V battery. The boost IC (U6) is used for voltage output and power on / off.

[0027] The sound effect processor, namely the DSP chip, bypass control module, power supply module, and data transmission module, is built into the musical instrument, and the control panel of the bypass control module is set on the surface of the musical instrument, such as in the body of an electric guitar. Then, the interface on the sound effect processor is connected to the interface of components such as the pickup on the electric guitar, so that the performer can control the bypass function button to adjust the sound effect as needed when playing the instrument. The APP Bluetooth communication module can be selected to establish communication with mobile terminals such as mobile phones and tablets, and the control can be carried out through the APP on mobile terminals such as mobile phones and tablets, or through a handheld controller (remote control panel, using Bluetooth communication) to achieve control and adjustment of the DSP processor. The data transmission module can also be equipped with a USB interface and / or Type-C interface to connect an external adjustment device (pedal), which enriches the performer's control and adjustment methods of the sound effects, improves the convenience of carrying and performance, and well meets the performer's usage needs.

Claims

1. A built-in audio processor with multiple control modes, comprising a DSP chip, the DSP chip being electrically connected to a power supply module, a data transmission module, and a bypass control module, characterized in that: Pin 11 of the DSP chip is connected to the bypass control module for inputting a gain-controlled guitar signal, pin 13 is connected to the guitar signal input, and pins 17 and 18 are used for signal output. The bypass control module is connected to the pickup and the controller module for sound effect control; the bypass control module is a signal switch SW1, and the signal switch SW1 is equipped with a control panel on which a bypass function button is set. Pins 1 and 6 of the signal switch SW1 are connected to the pickup tail nail, pin 2 is connected to the pickup coil / pickup bar, pin 3 is connected to the operational amplifier module, pin 4 is connected to the battery and the switch, and pin 5 is connected to pins 18 and 17 of the DSP chip through capacitor C26 and resistor R45. The operational amplifier module is connected to pin 11 of the DSP chip through resistor R42, capacitor C47, and capacitor C48.

2. The built-in audio processor with multiple control modes according to claim 1, characterized in that: The operational amplifier module includes an operator U1A, an operator U2A, and an operator U2B. The positive input terminal of the operator U1A is connected to pin 3 of the signal switch SW1 and the +2V5 power supply. The output terminal is connected to the capacitor C44, the +2V5 power supply, and the positive input terminal of the operator U2A. The output terminal is also connected to the musical instrument. The negative input terminal of the operator U1A is connected to the output terminal of the operator U1A. The negative input terminal of the arithmetic unit U2A is connected to the capacitor C51, the capacitor C52, and the arithmetic unit U2B in sequence, and the output terminal is connected to the transistor Q2 and the 11th pin of the DSP chip. A branch circuit is provided at this port. The branch circuit is provided with a capacitor C45 and a resistor R10 connected to the capacitor C51 of the arithmetic unit U2B, the capacitor C51 is connected to the capacitor C52, and the capacitor C52 is connected to the positive input terminal of the arithmetic unit U2B and the +2V5 power supply. The negative input terminal of the arithmetic unit U2B is connected to its output terminal and the resistor R23 in sequence. The resistor R23 is connected to the connection between the capacitors C51 and C52. One port of the transistor Q2 is connected to the resistor R15, the transistor Q3, the resistor R16 and the drive circuit B in sequence, and the other port of the transistor Q2 is connected to the resistor R11 and the negative input end of the operator U2A in sequence. The resistor R11 is connected to the capacitor C46, ​​the resistor R12, the transistor Q1, the resistor R14 and the drive circuit A.

3. The built-in audio processor with multiple control modes according to claim 1, wherein: Pins 6 and 7 of the DSP chip are connected to pins 10, 12, and 14, which are auxiliary winding circuits used to power the control circuit or auxiliary circuit; pin 19 is provided with a resistor R49 connected to the headphone jack, and pin 20 is provided with a resistor R50 connected to the headphone jack, and pin 19 is provided with a resistor R52 connected to the headphone jack and capacitor C53, and pin 20 is provided with a resistor R51 connected to the headphone jack and capacitor C53; pin 21 is connected to the tuner, and a resistor R27 and a capacitor C34 are provided between pin 21 and the tuner; pins 26 to 27 are for analog data signal acquisition and output, and are connected to the data acquisition and transmission module.

4. The built-in audio processor with multiple control modes according to claim 1 or 3, characterized in that: The 31st pin of the DSP chip is a bidirectional data line, which is connected to resistor R29, resistor R43, power supply, and capacitor C10; the 32nd pin is a clock line, which is connected to resistor R30, resistor R43, power supply, and capacitor C10.

5. The built-in audio processor with multiple control modes according to claim 1, wherein: The power supply module is connected to the data acquisition and transmission module and the DSP chip. The power supply module has a built-in 3.5V battery. The charging IC (U5) is used to switch the external 5V direct current input to a voltage that meets the battery charging voltage and charges the built-in battery; the DC output of the battery is converted into a voltage suitable for driving the DSP chip, data transmission module, and bypass control module through the U6 boost IC; one end of the power supply module is respectively connected to the battery and the switch to realize power input and output state control, and the other end of the power supply module is connected to the USB hub chip, which is connected to the USB interface and / or Type-C interface to realize power input.

6. The built-in audio processor with multiple control modes according to claim 1, characterized in that: The data transmission module is an APP Bluetooth communication module, which is used for signal analog conversion input and output. The data transmission module is equipped with a USB interface and / or Type-C interface, a driving circuit, a tuner, and an antenna receiver; the USB interface and / or Type-C interface uses a USB OTG transmission line to transmit data, ensuring data transmission quality and speed and reducing data signal transmission loss.

7. The built-in audio processor with multiple control modes according to claim 5, characterized in that: Pin 7 of the charging IC (U5) is connected to the USB hub chip, and pins 4 and 10 are connected to the built-in battery and the boost IC (U6). The boost IC (U6) is used for voltage output and power on / off.