CN106454643A - Audio player with adjustable compensation frequency - Google Patents
Audio player with adjustable compensation frequency Download PDFInfo
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- CN106454643A CN106454643A CN201611136490.3A CN201611136490A CN106454643A CN 106454643 A CN106454643 A CN 106454643A CN 201611136490 A CN201611136490 A CN 201611136490A CN 106454643 A CN106454643 A CN 106454643A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/03—Synergistic effects of band splitting and sub-band processing
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses an audio player with adjustable compensation frequency. The audio player is mainly composed of a microprocessor control module, a filter module, an audio mixer module, an audio hardware decoding module, a power module I and a power module II, wherein the power module I and the power module II are respectively responsible for voltage transformation and voltage stabilization and supplying power to the microprocessor control module, the filter module, the audio mixer module and the audio hardware decoding module; the audio hardware decoding module is responsible for decoding, amplifying and outputting an audio compressed file; the filter module is responsible for filtering high frequency components of compensation digital audio; and the audio mixer module is responsible for mixing original audio with compensation audio, and the microprocessor control module is responsible for coordinating the audio hardware decoding module and adjusting the compensation frequency. The audio player disclosed by the invention adopts an MCU and a filter to control the output of the compensation frequency, and the original audio frequency and the compensation frequency are fused by an audio mixer. The MCU controls the generated compensation frequency, and the output of audio frequency with a specific effect is achieved.
Description
Technical field
The present invention relates to a kind of circuit arrangement, the circuit arrangement that more particularly to a kind of audio frequency is played.
Background technology
Audio player is that one kind can complete audio signal decoding, amplification, and final process for the acceptable signal of human ear
Device.At present this electronic product is widely used in the every field of consumer electronics product, but current audio player
Primarily to allowing ordinary people to listen, final output sonic frequency is relatively low.Crowd of the part to high-frequency sound signal sensitivity, it is impossible to produce
The enough pleasant feelings of life, existing high audio signal, mostly single audio signal on network, audio section is unadjustable.
Content of the invention
In order to the deficiencies in the prior art are made up, crowd of the part to high-frequency sound signal sensitivity being solved, it is impossible to produces enough
Pleasant feeling problem, provide a kind of compensation frequency-adjustable audio player.
The technical solution adopted for the present invention to solve the technical problems can be：
A kind of audio player of compensation frequency-adjustable, mainly by microprocessor control module, filter module, mixer
Module, audio hardware decoder module, power module I and power module II composition, its power module I and power module II is born respectively
Blame voltage transformation and voltage voltage stabilizing and decode to microprocessor control module, filter module, mixer module and audio hardware
Module for power supply；Audio hardware decoder module is responsible for for audio compressed files decoding amplifying output；Filter module is responsible for filtering benefit
Repay the high fdrequency components of digital sound；Mixer module is responsible for the audio mixing by former audio frequency and compensating audio, and microprocessor control module is born
Duty coordinates control and the management of audio hardware decoder module, compensation frequency adjustment, file and reading and writing data.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, the microprocessor control module described in which includes monolithic
Machine U6, model STM32F40X, microprocessor control module SD interface, model J2, microprocessor control module interface 8, model
LCD P1, single-chip microcomputer U7, model M2408MN6, BOOT interface, model P3, microprocessor control module SWD interface, model P2；
Have in single-chip microcomputer U6, diode Q1, model BAT54C, mineral light J3, model AdcBat, tables of data X1, model MC306, shake
Swing device Y2, model XTAL, music player I, model U232_TX2, music player II, model U232_RX2, button switch
S1, S2, S3, S4, electric capacity C33, C34, C36 mono- C46, C48, resistance R25-27；
Its annexation is：Described single-chip microcomputer U6, the 1st pin of model STM32F40X connects diode Q1 negative pole, and connects electricity
Hold C34 one end, the electric capacity C34 other end is grounded, diode Q1 one end positive pole meets power supply 3V, another termination mineral light J3 positive pole,
Mineral light J3 minus earth；The 3rd pin of single-chip microcomputer U6 connects the 1st pin of tables of data X1, shunt-wound capacitance C38 one end, and electric capacity C38 is another
One termination capacitor C37 one end, and be grounded, another termination the 4th pin of tables of data X1 of electric capacity C37, and connect the 4th pin of single-chip microcomputer U6；
The 5th pin connecting resistance R25 one end of single-chip microcomputer U6, and agitator Y2 one end is connect, resistance R25 one end other end meets single-chip microcomputer U6 the 6th
Pin, the agitator Y2 other end also connects the 6th pin of single-chip microcomputer U6, mono- termination capacitor C41 one end of agitator Y2, and electric capacity C41 is another
End ground connection, another termination capacitor C42 one end of agitator Y2, the electric capacity C42 other end is grounded；The 7th pin connecting resistance of single-chip microcomputer U6
R26 one end, shunt-wound capacitance C40 one end, another termination power 3V positive pole of resistance R26, the electric capacity C40 other end is grounded；Single-chip microcomputer U6
9th pin connects, mineral light J3 positive pole；The 12nd pin of single-chip microcomputer U6 is grounded, and meets polar capacitor C43 one end negative pole, electric capacity C43
Other end positive pole connects the 13rd pin of single-chip microcomputer U6, mono- termination capacitor C44 one end of electric capacity C43, and the electric capacity C44 other end meets single-chip microcomputer U6
13rd pin, and connecting resistance R27 one end, another termination 3V positive pole of resistance R27；The 18th pin of single-chip microcomputer U6 is grounded, shunt-wound capacitance
C48 one end, the electric capacity C48 other end connects the 19th pin of single-chip microcomputer U6, and connects power supply 3V positive pole；20th pin connects single-chip microcomputer U5 input
End the 21st pin of H in, single-chip microcomputer U6 connects the 7th pin of microprocessor control module interface 8, and the 22nd pin of single-chip microcomputer U6 meets micro- place
The 5th pin of reason device control module interface 8, the 23rd pin of single-chip microcomputer U6 connects audio hardware decoder module circuit module interface 10 the 10th
Pin, the 24th pin of single-chip microcomputer U6 connects the 9th pin of audio hardware decoder module circuit module interface 10, the 25th pin of single-chip microcomputer U6
The 5th pin of audio hardware decoder module circuit module interface 10 is connect, the 26th pin of single-chip microcomputer U6 connects audio hardware decoder module electricity
The 4th pin of road module interface 10, the 29th pin of single-chip microcomputer U6 connects microprocessor control module interface P3 resistance R33 one end, resistance
R33 the 4th pin of another termination, and music player I is met, model U232-TX2, the 30th pin of single-chip microcomputer U6 connects music player
II, model U232-RX2；The 31st pin of single-chip microcomputer U6 connects electric capacity C46 one end, and the electric capacity C46 other end is grounded, single-chip microcomputer U6 the 32nd
Pin connects power supply 3V positive pole, shunt-wound capacitance C45 one end, electric capacity C45 other end ground connection；The 33rd pin of single-chip microcomputer U6 connects microprocessor
Control module interface 8, the 6th pin of model LCD P1, the 34th pin of single-chip microcomputer U6 connects microprocessor control module interface 8, model
The 3rd pin of LCD P1, and connect the 6th pin of audio hardware decoder module circuit module interface 10；The 35th pin of single-chip microcomputer U6 connects micro-
Processor control module interface 8, the 8th pin of model LCD P1, and connect the pipe of audio hardware decoder module circuit module interface 10 the 8th
Foot, the 36th pin of single-chip microcomputer U6 connects microprocessor control module interface 8, the 4th pin of model LCD P1, and connects audio hardware solution
The 7th pin of code modular circuit module interface 10, the 39th pin of single-chip microcomputer U6 connects the pipe of microprocessor control module SD interface J2 the 7th
Foot, the 40th pin of single-chip microcomputer U6 connects the 8th pin of microprocessor control module SD interface J2, and the 42nd pin of single-chip microcomputer U6 connects button and opens
Close S4 and be grounded, the 43rd pin of single-chip microcomputer U6 meets button switch S3 and is grounded, and the 44th pin of single-chip microcomputer U6 meets button switch S2 simultaneously
Ground connection, the 45th pin of single-chip microcomputer U6 meets button switch S1 and is grounded, and the 46th pin of single-chip microcomputer U6 connects microprocessor control module SWD
The 2nd pin of interface P2, the 47th pin of single-chip microcomputer U6 connects electric capacity C39 one end, and the electric capacity C39 other end is grounded, and single-chip microcomputer U6 the 48th is managed
Foot connects electric capacity C36 one end, and connects power supply 3V positive pole, and the electric capacity C36 other end is grounded, and the 49th pin of single-chip microcomputer U6 connects microprocessor control
The 3rd pin of molding block SWD interface P2, the 51st pin of single-chip microcomputer U6 connects the 9th pin of microprocessor control module SD interface J2, monolithic
The 52nd pin of machine U6 connects the 1st pin of microprocessor control module SD interface J2, and the 53rd pin of single-chip microcomputer U6 connects microprocessor control
The 5th pin of module SD interface J2, the 54th pin of single-chip microcomputer U6 connects the 2nd pin of microprocessor control module SD interface J2, single-chip microcomputer
The 56th pin of U6 connects the 3rd pin of microprocessor control module SWD interface P2, and the 60th pin of single-chip microcomputer U6 connects BOOT connecter type
P3BOOT0 foot, the 61st pin of single-chip microcomputer U6 connects single-chip microcomputer U7, the 6th pin of model M2408MN6, the 62nd pin order of single-chip microcomputer U6
Piece machine U7, the 5th pin of model M2408MN6, the 63rd pin of single-chip microcomputer U6 ground connection, shunt-wound capacitance C33 one end, the electric capacity C33 other end
Power supply 3V positive pole is connect, and connects the 64th pin of single-chip microcomputer U6.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, has in the audio hardware decoder module circuit described in which：
Single-chip microcomputer U2, model VS1053B, agitator Y1, model XTAL, electric capacity C7-C22, resistance R9-R14；
Its annexation is：Described the 6th pin of single-chip microcomputer U2 connects the 14th and the 19th pin, and just meets DC source 33V
Pole, shunt-wound capacitance C7 one end, electric capacity C8 one end, electric capacity C9 one end, the electric capacity C7 other end, the electric capacity C8 other end, electric capacity C9 are another
End is all grounded；The 5th pin of single-chip microcomputer U2 connects the 7th, the 24th, the 31st pin, and meet DC source 18Y positive pole, shunt-wound capacitance C10 mono-
End, electric capacity C11 one end, electric capacity C12 one end, electric capacity C13 one end, the electric capacity C10 other end, the electric capacity C11 other end, electric capacity C12 are another
One end, the electric capacity C13 other end are all grounded, the 26th pin connecting resistance R9 one end of single-chip microcomputer U2, another termination DC source of resistance R9
33V positive pole；The 4th pin of single-chip microcomputer U2 connects the 16th, the 20th, the 21st, the 22nd, the 35th pin, and be grounded；The 4th pin of single-chip microcomputer U2
Connect the 38th pin and the 43rd, the 45th pin is connect, and DC source 33YA positive pole is connect, shunt-wound capacitance C16 one end, electric capacity C17 one end, electricity
Hold C18 one end, the electric capacity C16 other end, the electric capacity C17 other end, the electric capacity C18 other end are all grounded；The 44th pin of single-chip microcomputer U2 connects
Electric capacity C19 one end, the electric capacity C19 other end is grounded；The 37th pin of single-chip microcomputer U2 connects the 40th, the 41st, the 47th pin be grounded；Monolithic
The 42nd pin connecting resistance R14 one end of machine U2, another termination capacitor C22 one end of resistance R14, the electric capacity C22 other end is grounded, single-chip microcomputer
The 39th pin connecting resistance R13 one end of U2, another termination capacitor C21 one end of resistance R13, the electric capacity C21 other end is grounded, single-chip microcomputer U2
46th pin connecting resistance R12 one end, another termination capacitor C20 one end of resistance R12, the electric capacity C20 other end is grounded, single-chip microcomputer U2 the
34 pins connect the 33rd pin, and connecting resistance R11 one end, and the resistance R11 other end is grounded, and the 17th pin of single-chip microcomputer U2 meets agitator Y1
One end, and connecting resistance R10 one end, shunt-wound capacitance C14 one end, the agitator Y1 other end connects the 18th pin of single-chip microcomputer U2, and connects
Electric capacity C34 one end resistance R10 other end connects the 18th pin of single-chip microcomputer U2, shunt-wound capacitance C15 one end, and the electric capacity C15 other end is grounded,
The resistance R10 other end connects the 18th pin of single-chip microcomputer U2, shunt-wound capacitance C15 one end, and the resistance R10 other end connects the pipe of single-chip microcomputer U2 the 18th
Foot, shunt-wound capacitance C15 one end, and connect the agitator Y1 other end；The 32nd pin of single-chip microcomputer U2 connects DC source 33V positive pole, monolithic
The 3rd pin of machine U2 connects the 10th pin of audio hardware decoder module interface 10P1TX, and the 8th pin of single-chip microcomputer U2 connects audio hardware decoding
The 9th pin of module interface 10P1, the 13rd pin of single-chip microcomputer U2 connects the 23rd pin of audio hardware decoder module interface 10P1, single-chip microcomputer
The 13rd pin of U2 connects the 5th pin of audio hardware decoder module interface 10P1, and the 23rd pin of single-chip microcomputer U2 connects audio hardware decoding mould
The 4th pin of block interface 10P1, the 28th pin of single-chip microcomputer U2 meets the 6th pin of audio hardware decoder module interface 10P1, single-chip microcomputer U2
29th pin connects the 7th pin of audio hardware decoder module interface 10P1, and the 30th pin of single-chip microcomputer U2 connects audio hardware decoder module
The 8th pin of interface 10P1.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, has in the mixer modular circuit described in which：Single-chip microcomputer
U1, model OPA2301, electric capacity C1-C6, resistance R1-R8；
Its annexation is：Described the 1st pin connecting resistance R1 one end of single-chip microcomputer U1, and connect earphone socket audio output
Another terminating resistor R2 one end of Lout, resistance R1, and connect the 2nd pin of single-chip microcomputer U1, and connecting resistance R5 one end, the resistance R5 other end
Electric capacity C3 one end is connect, another termination capacitor C1 one end of another termination audio input S out, resistance R2 of electric capacity C3, electric capacity C1 is another
Termination L channel output；The 3rd pin connecting resistance R7 one end of single-chip microcomputer U1, and connecting resistance R8 one end, and connect the pipe of single-chip microcomputer U1 the 5th
Foot, another termination capacitor C6 one end of resistance R7, and VCCA is met, the electric capacity C6 other end is grounded, and the resistance R8 other end is grounded, and order
The 4th pin of piece machine U1, the 5th pin connecting resistance R8 one end of single-chip microcomputer U1, and polar capacitor C3 positive pole one end is connect, polar capacitor C3 bears
Pole one end is grounded；The 6th pin connecting resistance R6 one end of single-chip microcomputer U1, and connecting resistance R4 one end, and connecting resistance R3 one end, resistance R6 is another
One termination capacitor C4 one end, another termination capacitor C2 one end of another termination audio output L out, resistance R4 of electric capacity C4, electric capacity C2
Another termination R channel input, the resistance R3 other end connects the 7th pin of single-chip microcomputer U1, and connects earphone socket audio input Rout；Single
The 8th pin of piece machine U1 meets VCC5A.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, has in the filter module circuit described in which：Single-chip microcomputer
U5, model OPA2301, electric capacity C29, C30, C31, C32, resistance R16, resistance R17, resistance R18, resistance R19；
Its annexation is：Described the 1st pin of single-chip microcomputer U5 connects the 2nd pin, shunt-wound capacitance C29 one end, and connects electricity electricity
Resistance R19 one end, the 3rd pin connecting resistance R17 one end of single-chip microcomputer U5, shunt-wound capacitance C30 one end, the electric capacity C30 other end is grounded, resistance
Another termination capacitor C29 other end of R17, and connecting resistance R16 one end, another termination Hin input of resistance R16, single-chip microcomputer U5 the 4th is managed
Foot is grounded, and the 7th pin of single-chip microcomputer U5 connects the 6th pin, and connects Sout output, shunt-wound capacitance C31 one end, another termination of electric capacity C31
The resistance R19 other end, and connecting resistance R18 one end, the 5th pin connecting resistance R18 other end of single-chip microcomputer U5, shunt-wound capacitance C32 one end,
The electric capacity C32 other end is grounded, and the 8th pin of single-chip microcomputer U5 connects power supply 5VA positive pole.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, has in the power module I circuit described in which：Single-chip microcomputer
U3, model AMSI117-3.3, electric capacity C23, electric capacity C24, electric capacity C25, electric capacity C26, resistance R15, resistance R90；
Its annexation is：Described single-chip microcomputer U3 input termination power 5V positive pole, and connecting resistance R90 one end, resistance R90
Another termination DC source 5V positive pole, shunt-wound capacitance C26 one end, the electric capacity C26 other end is grounded, and single-chip microcomputer U3 exports termination power
33V positive pole, shunt-wound capacitance C23 positive pole one end, shunt-wound capacitance C25 one end, and connecting resistance R15 one end, another termination of electric capacity C23
Ground, the electric capacity C25 other end is grounded, resistance R15 another termination power 33VA, shunt-wound capacitance C24 one end, another termination of electric capacity C24
Ground.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, has in the power module II circuit described in which：Single-chip microcomputer
U4, model AMSI117-1.8, electric capacity C27, electric capacity C28, resistance R90；
Its annexation is：Described single-chip microcomputer U4 input termination power 33V positive pole, and connect power supply 3V3 positive pole, outfan
Connect power supply 18V positive pole, shunt-wound capacitance C27 one end, shunt-wound capacitance C28 one end, electric capacity C27 other end ground connection, the electric capacity C28 other end
Ground connection, and single-chip microcomputer U4GND end, and connecting resistance R90 one end is connect, the resistance R90 other end is grounded.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, also wraps in the microprocessor control module circuit described in which
Include：Single-chip microcomputer U7, model M24C08MN6, resistance R29, resistance R31, electric capacity C49；
Its annexation is：Described the 3rd pin of single-chip microcomputer U7 connects the 7th pin, and connects the 4th pin, and is grounded, single-chip microcomputer
The 6th pin of U7 connects the 61st pin of single-chip microcomputer U6, and connecting resistance R29 one end, another termination power 3V3 positive pole of resistance R29, single-chip microcomputer
The 1st pin of U7 connects the 2nd pin ground connection, and the 5th pin of single-chip microcomputer U7 connects the 62nd pin of single-chip microcomputer U6, and connecting resistance R31 one end, resistance
Another termination power 3V3 positive pole of R31, the 8th pin of single-chip microcomputer U7 connects electric capacity C49 one end, and connects power supply 3V3 positive pole, and electric capacity C49 is another
One end is grounded.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, the mixer module described in which also includes earphone socket electricity
Road J1, model PHonejack3, L channel exports Lout, and R channel exports R out, buffer GBUF；
Its annexation is：Described L channel output Lout connects the 1st pin of single-chip microcomputer U1, and R channel output R out connects
The 7th pin of single-chip microcomputer U1, buffer GBUF connects the 42nd pin of single-chip microcomputer U2.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, in 1 circuit of microprocessor control module described in which also
Including microprocessor control module sdCard interface J2 circuit, wherein have：Interface J2, model sdCard, resistance R20-R24, electricity
Hold C35；
Its annexation is：Described the 0th pin of microprocessor control module sdCard interface J2 ground connection, the 9th pin connects
The 51st pin of single-chip microcomputer U6, and connecting resistance resistance R20 one end, another termination power 3V3 positive pole of R20, the 1st pin meets single-chip microcomputer U6
52nd pin, and connecting resistance R21 one end, another termination power 3V3 positive pole of R21, the 2nd pin connects the 54th pin of single-chip microcomputer U6, and
Connecting resistance R22 one end, another termination power 3V3 positive pole of R22, the 3rd pin connects electric capacity C35 one end, and connects the 6th pin, and is grounded,
Another termination power 3V3 positive pole of electric capacity C35, the 4th pin connects power supply 3V3 positive pole, and the 5th pin connects the 53rd pin of single-chip microcomputer U6, and the 7th
Pin connects the 39th pin of single-chip microcomputer U6, and connecting resistance R23 one end, another termination power 3V3 positive pole of resistance R23, the 8th pin order
The 40th pin of piece machine U6, and connecting resistance R24 one end, another termination power 3V3 positive pole of resistance R24.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, 4 circuit of audio hardware decoder module described in which is also wrapped
Include 4 interface of audio hardware decoder module, 10 circuit；
Its annexation is：Described the 1st pin of 4 interface 10 of audio hardware decoder module ground connection, the 2nd pin meets power supply 5V
Positive pole, the 3rd pin connects power supply 33V positive pole, and the 4th pin connects the 13rd pin of single-chip microcomputer U2, and the 5th pin connects the pipe of single-chip microcomputer U2 the 23rd
Foot, the 6th pin connects the 28th pin of single-chip microcomputer U2, and the 7th pin connects the 29th pin of single-chip microcomputer U2, and the 8th pin meets single-chip microcomputer U2 the 30th
Pin, the 9th pin connects the 8th pin of single-chip microcomputer U2, and the 10th pin connects the 3rd pin of single-chip microcomputer U2.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, the microprocessor control module circuit described in which also includes
1 interface of microprocessor control module, 8 circuit；
Its annexation is：Described the 1st pin of 1 interface of microprocessor control module, 8 circuit ground connection, the 2nd pin connects electricity
Source 3V3 positive pole, the 3rd pin connects the 34th pin of single-chip microcomputer U6, and the 4th pin connects the 36th pin of single-chip microcomputer U6, and the 5th pin connects single-chip microcomputer
The 22nd pin of U6, the 6th pin connects the 33rd pin of single-chip microcomputer U6, and the 7th pin connects the 21st pin of single-chip microcomputer U6, the 8th pin order piece
The 35th pin of machine U6.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, the microprocessor control module circuit described in which also includes
Microprocessor control module 1BOOT interface P3 circuit, has BOOT interface P3, resistance R32 and resistance R33 in circuit；
Its annexation is：Described the 1st pin of microprocessor control module BOOT interface P3 connects power supply 3V3 positive pole, and the 2nd
Pin connects power supply 3V3 positive pole, the 3rd pin connecting resistance R32 one end, and the resistance R32 other end connects the 60th pin of single-chip microcomputer U6, the 4th pipe
Foot connecting resistance R33 one end, the resistance R33 other end connects the 29th pin of single-chip microcomputer U6, and the 5th pin is grounded, and the 6th pin is grounded.
The technical solution adopted for the present invention to solve the technical problems can also be：
A kind of audio player of described compensation frequency-adjustable, the microprocessor control module circuit described in which also includes
Microprocessor control module SWD interface P2, has in microprocessor control module 1SWD interface P2 circuit：Resistance R28, resistance R30,
Electric capacity C47；
Its annexation is：Described the 1st pin of microprocessor control module SWD interface P2 connects electric capacity C47 one end, and connects
Power supply 3V3 positive pole, the electric capacity C47 other end is grounded, the 2nd pin connecting resistance R28 one end, and connects the 46th pin of single-chip microcomputer U6, resistance
Another termination power 3V3 positive pole of R28, the 3rd pin connects the 49th pin of single-chip microcomputer U6, and connecting resistance R30 one end, and resistance R30 is another
End ground connection, and the 5th pin is connect, the 4th pin connects the 7th pin of single-chip microcomputer U6.
The invention has the beneficial effects as follows：
1st, the present invention compensates the output of frequency using MCU and FILTER TO CONTROL, completes original music frequency using mixer
Fusion with compensation frequency.Control the compensation frequency for generating using MCU, it is achieved that the sonic frequency output of special-effect.Pass through
The control of microcontroller, realizes compensation frequency range, the adjustment of amplitude, and then it is defeated to reach the audio frequency comprising abundant harmonic component
Go out.
2nd, the present invention produces a kind of audio player that can compensate frequency-adjustable in 300Hz to 20KHz frequency range,
The audio player can be realized determining music, compensate being in step with of frequency or frequency band and former music, synchronism output.
Description of the drawings
Fig. 1 is mixer module U1 circuit diagram of the present invention.
Fig. 2 is earphone socket J1 circuit diagram.
Fig. 3 is audio hardware decoder module U2 circuit diagram.
Fig. 4 is 10 circuit diagram of audio hardware decoder module interface.
Fig. 5 is power module I U3 circuit diagram.
Fig. 6 is power module II U4 circuit diagram.
Fig. 7 is filter module U5 circuit diagram.
Fig. 8 is microprocessor control module U6 circuit diagram.
Fig. 9 is microprocessor control module U6SD interface J2 circuit diagram.
Figure 10 is 8 circuit diagram of microprocessor control module U6 interface.
Figure 11 is microprocessor control module U7 circuit diagram.
Figure 12 is microprocessor control module BOOT interface P3 circuit diagram.
Figure 13 is microprocessor control module SWD interface P2 circuit diagram.
Figure 14 is Circuits System block diagram of the present invention.
Specific embodiment
In Figure 14, a kind of audio player of compensation frequency-adjustable, mainly by microprocessor control module 1, wave filter mould
Block 2, mixer module 3, audio hardware decoder module 4, power module I 5 and power module II 6 constitute, its power module I 5
Voltage transformation and voltage voltage stabilizing is each responsible for and to microprocessor control module 1, filter module 2, mixed with power module II 6
Sound device module 3 and audio hardware decoder module 4 are powered；Audio hardware decoder module 4 is responsible for amplifying audio compressed files decoding
Output；Filter module 2 is responsible for filtering the high fdrequency components of the digital sound of compensation；Mixer module 3 is responsible for former audio frequency and compensation sound
The audio mixing of frequency, microprocessor control module 1 is responsible for coordinating audio hardware decoder module, compensation frequency adjustment, file and data reading
The control that writes and management.
In Fig. 8, Fig. 1-7, Fig. 9-13, a kind of audio player of described compensation frequency-adjustable, the microprocessor described in which
Device control module 1 includes single-chip microcomputer U6, model STM32F40X, microprocessor control module SD interface, model J2, microprocessor
Device control module interface 8, model LCD P1, single-chip microcomputer U7, model M2408MN6, BOOT interface, model P3, microprocessor controls
Module SWD interface, model P2；Have in single-chip microcomputer U6, diode Q1, model BAT54C, mineral light J3, model AdcBat, number
According to Table X 1, model MC306, agitator Y2, model XTAL, music player I, model U232_TX2, music player II, model
U232_RX2, button switch S1, S2, S3, S4, electric capacity C33, C34, C36-C46, C48, resistance R25-27；
Its annexation is：Described single-chip microcomputer U6, the 1st pin of model STM32F40X connects diode Q1 negative pole, and connects electricity
Hold C34 one end, the electric capacity C34 other end is grounded, diode Q1 one end positive pole meets power supply 3V, another termination mineral light J3 positive pole,
Mineral light J3 minus earth；The 3rd pin of single-chip microcomputer U6 connects the 1st pin of tables of data X1, shunt-wound capacitance C38 one end, and electric capacity C38 is another
One termination capacitor C37 one end, and be grounded, another termination the 4th pin of tables of data X1 of electric capacity C37, and connect the 4th pin of single-chip microcomputer U6；
The 5th pin connecting resistance R25 one end of single-chip microcomputer U6, and agitator Y2 one end is connect, resistance R25 one end other end meets single-chip microcomputer U6 the 6th
Pin, the agitator Y2 other end also connects the 6th pin of single-chip microcomputer U6, mono- termination capacitor C41 one end of agitator Y2, and electric capacity C41 is another
End ground connection, another termination capacitor C42 one end of agitator Y2, the electric capacity C42 other end is grounded；The 7th pin connecting resistance of single-chip microcomputer U6
R26 one end, shunt-wound capacitance C40 one end, another termination power 3V positive pole of resistance R26, the electric capacity C40 other end is grounded；Single-chip microcomputer U6
9th pin connects, mineral light J3 positive pole；The 12nd pin of single-chip microcomputer U6 is grounded, and meets polar capacitor C43 one end negative pole, electric capacity C43
Other end positive pole connects the 13rd pin of single-chip microcomputer U6, mono- termination capacitor C44 one end of electric capacity C43, and the electric capacity C44 other end meets single-chip microcomputer U6
13rd pin, and connecting resistance R27 one end, another termination 3V positive pole of resistance R27；The 18th pin of single-chip microcomputer U6 is grounded, shunt-wound capacitance
C48 one end, the electric capacity C48 other end connects the 19th pin of single-chip microcomputer U6, and connects power supply 3V positive pole；20th pin connects single-chip microcomputer U5 input
End the 21st pin of H in, single-chip microcomputer U6 connects the 7th pin of microprocessor control module interface 8, and the 22nd pin of single-chip microcomputer U6 meets micro- place
The 5th pin of reason device control module interface 8, the 23rd pin of single-chip microcomputer U6 connects audio hardware decoder module circuit module interface 10 the 10th
Pin, the 24th pin of single-chip microcomputer U6 connects the 9th pin of audio hardware decoder module circuit module interface 10, the 25th pin of single-chip microcomputer U6
The 5th pin of audio hardware decoder module circuit module interface 10 is connect, the 26th pin of single-chip microcomputer U6 connects audio hardware decoder module electricity
The 4th pin of road module interface 10, the 29th pin of single-chip microcomputer U6 connects microprocessor control module interface P3 resistance R33 one end, resistance
R33 the 4th pin of another termination, and music player I is met, model U232-TX2, the 30th pin of single-chip microcomputer U6 connects music player
II, model U232-RX2；The 31st pin of single-chip microcomputer U6 connects electric capacity C46 one end, and the electric capacity C46 other end is grounded, single-chip microcomputer U6 the 32nd
Pin connects power supply 3V positive pole, shunt-wound capacitance C45 one end, electric capacity C45 other end ground connection；The 33rd pin of single-chip microcomputer U6 connects microprocessor
Control module interface 8, the 6th pin of model LCD P1, the 34th pin of single-chip microcomputer U6 connects microprocessor control module interface 8, model
The 3rd pin of LCD P1, and connect the 6th pin of audio hardware decoder module circuit module interface 10；The 35th pin of single-chip microcomputer U6 connects micro-
Processor control module interface 8, the 8th pin of model LCD P1, and connect the pipe of audio hardware decoder module circuit module interface 10 the 8th
Foot, the 36th pin of single-chip microcomputer U6 connects microprocessor control module interface 8, the 4th pin of model LCD P1, and connects audio hardware solution
The 7th pin of code modular circuit module interface 10, the 39th pin of single-chip microcomputer U6 connects the pipe of microprocessor control module SD interface J2 the 7th
Foot, the 40th pin of single-chip microcomputer U6 connects the 8th pin of microprocessor control module SD interface J2, and the 42nd pin of single-chip microcomputer U6 connects button and opens
Close S4 and be grounded, the 43rd pin of single-chip microcomputer U6 meets button switch S3 and is grounded, and the 44th pin of single-chip microcomputer U6 meets button switch S2 simultaneously
Ground connection, the 45th pin of single-chip microcomputer U6 meets button switch S1 and is grounded, and the 46th pin of single-chip microcomputer U6 connects microprocessor control module SWD
The 2nd pin of interface P2, the 47th pin of single-chip microcomputer U6 connects electric capacity C39 one end, and the electric capacity C39 other end is grounded, and single-chip microcomputer U6 the 48th is managed
Foot connects electric capacity C36 one end, and connects power supply 3V positive pole, and the electric capacity C36 other end is grounded, and the 49th pin of single-chip microcomputer U6 connects microprocessor control
The 3rd pin of molding block SWD interface P2, the 51st pin of single-chip microcomputer U6 connects the 9th pin of microprocessor control module SD interface J2, monolithic
The 52nd pin of machine U6 connects the 1st pin of microprocessor control module SD interface J2, and the 53rd pin of single-chip microcomputer U6 connects microprocessor control
The 5th pin of module SD interface J2, the 54th pin of single-chip microcomputer U6 connects the 2nd pin of microprocessor control module SD interface J2, single-chip microcomputer
The 56th pin of U6 connects the 3rd pin of microprocessor control module SWD interface P2, and the 60th pin of single-chip microcomputer U6 connects BOOT connecter type
P3BOOT0 foot, the 61st pin of single-chip microcomputer U6 connects single-chip microcomputer U7, the 6th pin of model M2408MN6, the 62nd pin order of single-chip microcomputer U6
Piece machine U7, the 5th pin of model M2408MN6, the 63rd pin of single-chip microcomputer U6 ground connection, shunt-wound capacitance C33 one end, the electric capacity C33 other end
Power supply 3V positive pole is connect, and connects the 64th pin of single-chip microcomputer U6.
In Fig. 3, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the audio hardware decoder module described in which
Have in 4 circuits：Single-chip microcomputer U2, model VS1053B, agitator Y1, model XTAL, electric capacity C7-C22, resistance R9-R14；
Its annexation is：Described the 6th pin of single-chip microcomputer U2 connects the 14th and the 19th pin, and just meets DC source 33V
Pole, shunt-wound capacitance C7 one end, electric capacity C8 one end, electric capacity C9 one end, the electric capacity C7 other end, the electric capacity C8 other end, electric capacity C9 are another
End is all grounded；The 5th pin of single-chip microcomputer U2 connects the 7th, the 24th, the 31st pin, and meet DC source 18V positive pole, shunt-wound capacitance C10 mono-
End, electric capacity C11 one end, electric capacity C12 one end, electric capacity C13 one end, the electric capacity C10 other end, the electric capacity C11 other end, electric capacity C12 are another
One end, the electric capacity C13 other end are all grounded, the 26th pin connecting resistance R9 one end of single-chip microcomputer U2, another termination DC source of resistance R9
33V positive pole；The 4th pin of single-chip microcomputer U2 connects the 16th, the 20th, the 21st, the 22nd, the 35th pin, and be grounded；The 4th pin of single-chip microcomputer U2
Connect the 38th pin and the 43rd, the 45th pin is connect, and DC source 33VA positive pole is connect, shunt-wound capacitance C16 one end, electric capacity C17 one end, electricity
Hold C18 one end, the electric capacity C16 other end, the electric capacity C17 other end, the electric capacity C18 other end are all grounded；The 44th pin of single-chip microcomputer U2 connects
Electric capacity C19 one end, the electric capacity C19 other end is grounded；The 37th pin of single-chip microcomputer U2 connects the 40th, the 41st, the 47th pin be grounded；Monolithic
The 42nd pin connecting resistance R14 one end of machine U2, another termination capacitor C22 one end of resistance R14, the electric capacity C22 other end is grounded, single-chip microcomputer
The 39th pin connecting resistance R13 one end of U2, another termination capacitor C21 one end of resistance R13, the electric capacity C21 other end is grounded, single-chip microcomputer U2
46th pin connecting resistance R12 one end, another termination capacitor C20 one end of resistance R12, the electric capacity C20 other end is grounded, single-chip microcomputer U2 the
34 pins connect the 33rd pin, and connecting resistance R11 one end, and the resistance R11 other end is grounded, and the 17th pin of single-chip microcomputer U2 meets agitator Y1
One end, and connecting resistance R10 one end, shunt-wound capacitance C14 one end, the agitator Y1 other end connects the 18th pin of single-chip microcomputer U2, and connects
Electric capacity C34 one end resistance R10 other end connects the 18th pin of single-chip microcomputer U2, shunt-wound capacitance C15 one end, and the electric capacity C15 other end is grounded,
The resistance R10 other end connects the 18th pin of single-chip microcomputer U2, shunt-wound capacitance C15 one end, and the resistance RI0 other end connects the pipe of single-chip microcomputer U2 the 18th
Foot, shunt-wound capacitance C15 one end, and connect the agitator Y1 other end；The 32nd pin of single-chip microcomputer U2 connects DC source 33V positive pole, monolithic
The 3rd pin of machine U2 connects the 10th pin of audio hardware decoder module interface I0P1TX, and the 8th pin of single-chip microcomputer U2 connects audio hardware decoding
The 9th pin of module interface 10P1, the 13rd pin of single-chip microcomputer U2 connects the 23rd pin of audio hardware decoder module interface 10P1, single-chip microcomputer
The 13rd pin of U2 connects the 5th pin of audio hardware decoder module interface 10P1, and the 23rd pin of single-chip microcomputer U2 connects audio hardware decoding mould
The 4th pin of block interface 10P1, the 28th pin of single-chip microcomputer U2 meets the 6th pin of audio hardware decoder module interface 10P1, single-chip microcomputer U2
29th pin connects the 7th pin of audio hardware decoder module interface 10P1, and the 30th pin of single-chip microcomputer U2 connects audio hardware decoder module
The 8th pin of interface 10P1.
In Fig. 1, Fig. 8, a kind of audio player of described compensation frequency-adjustable, 3 circuit of mixer module described in which
In have：Single-chip microcomputer U1, model OPA2301, electric capacity C1-C6, resistance R1-R8；
Its annexation is：Described the 1st pin connecting resistance R1 one end of single-chip microcomputer U1, and connect earphone socket audio output
Another terminating resistor R2 one end of Lout, resistance R1, and connect the 2nd pin of single-chip microcomputer U1, and connecting resistance R5 one end, the resistance R5 other end
Electric capacity C3 one end is connect, another termination capacitor C1 one end of another termination audio input S out, resistance R2 of electric capacity C3, electric capacity C1 is another
Termination L channel output；The 3rd pin connecting resistance R7 one end of single-chip microcomputer U1, and connecting resistance R8 one end, and connect the pipe of single-chip microcomputer U1 the 5th
Foot, another termination capacitor C6 one end of resistance R7, and VCCA is met, the electric capacity C6 other end is grounded, and the resistance R8 other end is grounded, and order
The 4th pin of piece machine U1, the 5th pin connecting resistance R8 one end of single-chip microcomputer U1, and polar capacitor C3 positive pole one end is connect, polar capacitor C3 bears
Pole one end is grounded；The 6th pin connecting resistance R6 one end of single-chip microcomputer U1, and connecting resistance R4 one end, and connecting resistance R3 one end, resistance R6 is another
One termination capacitor C4 one end, another termination capacitor C2 one end of another termination audio output L out, resistance R4 of electric capacity C4, electric capacity C2
Another termination R channel input, the resistance R3 other end connects the 7th pin of single-chip microcomputer U1, and connects earphone socket audio input Rout；Single
The 8th pin of piece machine U1 meets VCC5A.
Fig. 7, Fig. 8, in, a kind of audio player of described compensation frequency-adjustable, 2 circuit of filter module described in which
In have：Single-chip microcomputer U5, model OPA2301, electric capacity C29, C30, C31, C32, resistance R16, resistance R17, resistance R18, resistance
R19；
Its annexation is：Described the 1st pin of single-chip microcomputer U5 connects the 2nd pin, shunt-wound capacitance C29 one end, and connects electricity electricity
Resistance R19 one end, the 3rd pin connecting resistance R17 one end of single-chip microcomputer U5, shunt-wound capacitance C30 one end, the electric capacity C30 other end is grounded, resistance
Another termination capacitor C29 other end of R17, and connecting resistance R16 one end, another termination Hin input of resistance R16, single-chip microcomputer U5 the 4th is managed
Foot is grounded, and the 7th pin of single-chip microcomputer U5 connects the 6th pin, and connects Sout output, shunt-wound capacitance C31 one end, another termination of electric capacity C31
The resistance R19 other end, and connecting resistance R18 one end, the 5th pin connecting resistance R18 other end of single-chip microcomputer U5, shunt-wound capacitance C32 one end,
The electric capacity C32 other end is grounded, and the 8th pin of single-chip microcomputer U5 connects power supply 5VA positive pole.
In Fig. 5, Fig. 8, a kind of audio player of described compensation frequency-adjustable, 5 circuit of power module I described in which
In have：Single-chip microcomputer U3, model AMSI117-3.3, electric capacity C23, electric capacity C24, electric capacity C25, electric capacity C26, resistance R15, resistance
R90；
Its annexation is：Described single-chip microcomputer U3 input termination power 5V positive pole, and connecting resistance R90 one end, resistance R90
Another termination DC source 5V positive pole, shunt-wound capacitance C26 one end, the electric capacity C26 other end is grounded, and single-chip microcomputer U3 exports termination power
33V positive pole, shunt-wound capacitance C23 positive pole one end, shunt-wound capacitance C25 one end, and connecting resistance R15 one end, another termination of electric capacity C23
Ground, the electric capacity C25 other end is grounded, resistance R15 another termination power 33VA, shunt-wound capacitance C24 one end, another termination of electric capacity C24
Ground.
In Fig. 6, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the power module II6 circuit described in which
In have：Single-chip microcomputer U4, model AMSI117-1.8, electric capacity C27, electric capacity C28, resistance R90；
Its annexation is：Described single-chip microcomputer U4 input termination power 33V positive pole, and connect power supply 3V3 positive pole, outfan
Connect power supply 18V positive pole, shunt-wound capacitance C27 one end, shunt-wound capacitance C28 one end, electric capacity C27 other end ground connection, the electric capacity C28 other end
Ground connection, and single-chip microcomputer U4GND end, and connecting resistance R90 one end is connect, the resistance R90 other end is grounded.
In Figure 11, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the microprocessor control mould described in which
Also include in 1 circuit of block：Single-chip microcomputer U7, model M24C08MN6, resistance R29, resistance R31, electric capacity C49；
Its annexation is：Described the 3rd pin of single-chip microcomputer U7 connects the 7th pin, and connects the 4th pin, and is grounded, single-chip microcomputer
The 6th pin of U7 connects the 61st pin of single-chip microcomputer U6, and connecting resistance R29 one end, another termination power 3V3 positive pole of resistance R29, single-chip microcomputer
The 1st pin of U7 connects the 2nd pin ground connection, and the 5th pin of single-chip microcomputer U7 connects the 62nd pin of single-chip microcomputer U6, and connecting resistance R31 one end, resistance
Another termination power 3V3 positive pole of R31, the 8th pin of single-chip microcomputer U7 connects electric capacity C49 one end, and connects power supply 3V3 positive pole, and electric capacity C49 is another
One end is grounded.
In Fig. 2, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the mixer module 3 described in which is also wrapped
Earphone socket circuit J1, model PHonejack3 is included, L channel exports Lout, R channel output Rout, buffer GBUF；
Its annexation is：Described L channel output Lout connects the 1st pin of single-chip microcomputer U1, and R channel output R out connects
The 7th pin of single-chip microcomputer U1, buffer GBUF connects the 42nd pin of single-chip microcomputer U2.
In Fig. 9, a kind of audio player of described compensation frequency-adjustable, 1 electricity of microprocessor control module described in which
Also include microprocessor control module sdCard interface J2 circuit in road, wherein have：Interface J2, model sdCard, resistance R20-
R24, electric capacity C35；
Its annexation is：Described the 0th pin of microprocessor control module sdCard interface J2 ground connection, the 9th pin connects
The 51st pin of single-chip microcomputer U6, and connecting resistance resistance R20 one end, another termination power 3V3 positive pole of R20, the 1st pin meets single-chip microcomputer U6
52nd pin, and connecting resistance R21 one end, another termination power 3V3 positive pole of R21, the 2nd pin connects the 54th pin of single-chip microcomputer U6, and
Connecting resistance R22 one end, another termination power 3V3 positive pole of R22, the 3rd pin connects electric capacity C35 one end, and connects the 6th pin, and is grounded,
Another termination power 3V3 positive pole of electric capacity C35, the 4th pin connects power supply 3V3 positive pole, and the 5th pin connects the 53rd pin of single-chip microcomputer U6, and the 7th
Pin connects the 39th pin of single-chip microcomputer U6, and connecting resistance R23 one end, another termination power 3V3 positive pole of resistance R23, the 8th pin order
The 40th pin of piece machine U6, and connecting resistance R24 one end, another termination power 3V3 positive pole of resistance R24.
In Fig. 4, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the audio hardware decoder module described in which
4 circuits also include 4 interface of audio hardware decoder module, 10 circuit；
Its annexation is：Described the 1st pin of 4 interface 10 of audio hardware decoder module ground connection, the 2nd pin meets power supply 5V
Positive pole, the 3rd pin connects power supply 33V positive pole, and the 4th pin connects the 13rd pin of single-chip microcomputer U2, and the 5th pin connects the pipe of single-chip microcomputer U2 the 23rd
Foot, the 6th pin connects the 28th pin of single-chip microcomputer U2, and the 7th pin connects the 29th pin of single-chip microcomputer U2, and the 8th pin meets single-chip microcomputer U2 the 30th
Pin, the 9th pin connects the 8th pin of single-chip microcomputer U2, and the 10th pin connects the 3rd pin of single-chip microcomputer U2.
In Figure 10, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the microprocessor control mould described in which
1 circuit of block also includes 1 interface of microprocessor control module, 8 circuit；
Its annexation is：Described the 1st pin of 1 interface of microprocessor control module, 8 circuit ground connection, the 2nd pin connects electricity
Source 3V3 positive pole, the 3rd pin connects the 34th pin of single-chip microcomputer U6, and the 4th pin connects the 36th pin of single-chip microcomputer U6, and the 5th pin connects single-chip microcomputer
The 22nd pin of U6, the 6th pin connects the 33rd pin of single-chip microcomputer U6, and the 7th pin connects the 21st pin of single-chip microcomputer U6, the 8th pin order piece
The 35th pin of machine U6.
In Figure 12, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the microprocessor control mould described in which
1 circuit of block also includes microprocessor control module 1BOOT interface P3 circuit, has BOOT interface P3, resistance R32 and resistance in circuit
R33；
Its annexation is：Described the 1st pin of microprocessor control module 1BOOT interface P3 connects power supply 3V3 positive pole, the
2 pins connect power supply 3V3 positive pole, the 3rd pin connecting resistance R32 one end, and the resistance R32 other end connects the 60th pin of single-chip microcomputer U6, the 4th pipe
Foot connecting resistance R33 one end, the resistance R33 other end connects the 29th pin of single-chip microcomputer U6, and the 5th pin is grounded, and the 6th pin is grounded.
In Figure 13, Fig. 8, a kind of audio player of described compensation frequency-adjustable, the microprocessor control mould described in which
1 circuit of block also includes microprocessor control module 1SWD interface P2, has in microprocessor control module 1SWD interface P2 circuit：Electricity
Resistance R28, resistance R30, electric capacity C47；
Its annexation is：Described the 1st pin of microprocessor control module 1SWD interface P2 connects electric capacity C47 one end, and
Power supply 3V3 positive pole is connect, the electric capacity C47 other end is grounded, the 2nd pin connecting resistance R28 one end, and the 46th pin of single-chip microcomputer U6 is connect, electricity
Another termination power 3V3 positive pole of resistance R28, the 3rd pin connects the 49th pin of single-chip microcomputer U6, and connecting resistance R30 one end, and resistance R30 is another
One end is grounded, and connects the 5th pin, and the 4th pin connects the 7th pin of single-chip microcomputer U6.
Claims (10)
1. a kind of audio player of compensation frequency-adjustable, mainly by microprocessor control module (1), filter module (2), mixes
Sound device module (3), audio hardware decoder module (4), power module I (5) and power module II (6) composition, it is characterised in that：Electricity
Source module I (5) and power module II (6) are each responsible for voltage transformation and voltage voltage stabilizing and to microprocessor control module (1), filter
Ripple device module (2), mixer module (3) and audio hardware decoder module (4) power supply；Audio hardware decoder module (4) is responsible for will
Output is amplified in audio compressed files decoding；Filter module (2) is responsible for filtering the high fdrequency components of the digital sound of compensation；Mixer module
(3) it is responsible for former audio frequency and the audio mixing of compensating audio, the responsible coordination audio hardware decoder module of microprocessor control module (1),
Control and the management of compensation frequency adjustment, file and reading and writing data.
2. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described microprocessor
Device control module (1) includes single-chip microcomputer U6, model STM32F40X, microprocessor control module SD interface, model J2, micro- place
Reason device control module interface 8, model LCD P1, single-chip microcomputer U7, model M2408MN6, BOOT interface, model P3, microprocessor control
Molding block SWD interface, model P2；Have in single-chip microcomputer U6, diode Q1, model BAT54C, mineral light J3, model AdcBat,
Tables of data X1, model MC306, agitator Y2, model XTAL, music player I, model U232_TX2, music player II, type
Number U232_RX2, button switch S1, S2, S3, S4, electric capacity C33, C34, C36-C46, C48, resistance R25-27；
Its annexation is：Described single-chip microcomputer U6, the 1st pin of model STM32F40X connects diode Q1 negative pole, shunt-wound capacitance
C34 one end, the electric capacity C34 other end is grounded, and diode Q1 one end positive pole connects power supply 3V, another termination mineral light J3 positive pole, ore deposit
Lamp battery J3 minus earth；The 3rd pin of single-chip microcomputer U6 connects the 1st pin of tables of data X1, shunt-wound capacitance C38 one end, and electric capacity C38 is another
Termination capacitor C37 one end, and be grounded, another termination the 4th pin of tables of data X1 of electric capacity C37, and connect the 4th pin of single-chip microcomputer U6；Single
The 5th pin connecting resistance R25 one end of piece machine U6, and agitator Y2 one end is connect, resistance R25 one end other end connects the pipe of single-chip microcomputer U6 the 6th
Foot, the agitator Y2 other end also connects the 6th pin of single-chip microcomputer U6, mono- termination capacitor C41 one end of agitator Y2, the electric capacity C41 other end
Ground connection, another termination capacitor C42 one end of agitator Y2, the electric capacity C42 other end is grounded；The 7th pin connecting resistance R26 of single-chip microcomputer U6
One end, shunt-wound capacitance C40 one end, another termination power 3V positive pole of resistance R26, the electric capacity C40 other end is grounded；Single-chip microcomputer U6 the 9th
Pin connects, mineral light J3 positive pole；The 12nd pin of single-chip microcomputer U6 is grounded, and connects polar capacitor C43 one end negative pole, and electric capacity C43 is another
One end positive pole connects the 13rd pin of single-chip microcomputer U6, mono- termination capacitor C44 one end of electric capacity C43, and the electric capacity C44 other end meets single-chip microcomputer U6
13 pins, and connecting resistance R27 one end, another termination 3V positive pole of resistance R27；The 18th pin of single-chip microcomputer U6 is grounded, shunt-wound capacitance C48
One end, the electric capacity C48 other end connects the 19th pin of single-chip microcomputer U6, and connects power supply 3V positive pole；20th pin meets single-chip microcomputer U5 input H
The 21st pin of in, single-chip microcomputer U6 connects the 7th pin of microprocessor control module interface 8, and the 22nd pin of single-chip microcomputer U6 connects microprocessor
The 5th pin of control module interface 8, the 23rd pin of single-chip microcomputer U6 connects the pipe of audio hardware decoder module circuit module interface 10 the 10th
Foot, the 24th pin of single-chip microcomputer U6 connects the 9th pin of audio hardware decoder module circuit module interface 10, and the 25th pin of single-chip microcomputer U6 connects
The 5th pin of audio hardware decoder module circuit module interface 10, the 26th pin of single-chip microcomputer U6 connects audio hardware decoder module circuit
The 4th pin of module interface 10, the 29th pin of single-chip microcomputer U6 meets microprocessor control module interface P3 resistance R33 one end, resistance R33
The 4th pin of another termination, and music player I is met, model U232-TX2, the 30th pin of single-chip microcomputer U6 meets music player II,
Model U232-RX2；The 31st pin of single-chip microcomputer U6 connects electric capacity C46 one end, and the electric capacity C46 other end is grounded, the 32nd pin of single-chip microcomputer U6
Connect power supply 3V positive pole, shunt-wound capacitance C45 one end, electric capacity C45 other end ground connection；The 33rd pin of single-chip microcomputer U6 connects microprocessor control
Module interface 8, the 6th pin of model LCD P1, the 34th pin of single-chip microcomputer U6 connects microprocessor control module interface 8, model LCD
The 3rd pin of P1, and connect the 6th pin of audio hardware decoder module circuit module interface 10；The 35th pin of single-chip microcomputer U6 connects microprocessor
Device control module interface 8, the 8th pin of model LCD P1, and the 8th pin of audio hardware decoder module circuit module interface 10 is connect,
The 36th pin of single-chip microcomputer U6 connects microprocessor control module interface 8, the 4th pin of model LCD P1, and connects audio hardware decoding
The 7th pin of modular circuit module interface 10, the 39th pin of single-chip microcomputer U6 connects the 7th pin of microprocessor control module SD interface J2,
The 40th pin of single-chip microcomputer U6 connects the 8th pin of microprocessor control module SD interface J2, and the 42nd pin of single-chip microcomputer U6 connects button switch
S4 is simultaneously grounded, and the 43rd pin of single-chip microcomputer U6 meets button switch S3 and is grounded, and the 44th pin of single-chip microcomputer U6 meets button switch S2 and connects
Ground, the 45th pin of single-chip microcomputer U6 meets button switch S1 and is grounded, and the 46th pin of single-chip microcomputer U6 connects microprocessor control module SWD and connects
Mouth the 2nd pin of P2, the 47th pin of single-chip microcomputer U6 connects electric capacity C39 one end, and the electric capacity C39 other end is grounded, the 48th pin of single-chip microcomputer U6
Electric capacity C36 one end is connect, and power supply 3V positive pole is connect, the electric capacity C36 other end is grounded, the 49th pin of single-chip microcomputer U6 connects microprocessor control
The 3rd pin of module SWD interface P2, the 51st pin of single-chip microcomputer U6 connects the 9th pin of microprocessor control module SD interface J2, single-chip microcomputer
The 52nd pin of U6 connects the 1st pin of microprocessor control module SD interface J2, and the 53rd pin of single-chip microcomputer U6 connects microprocessor control mould
The 5th pin of block SD interface J2, the 54th pin of single-chip microcomputer U6 meets the 2nd pin of microprocessor control module SD interface J2, single-chip microcomputer U6
56th pin connects the 3rd pin of microprocessor control module SWD interface P2, and the 60th pin of single-chip microcomputer U6 meets BOOT connecter type P3
BOOT0 foot, the 61st pin of single-chip microcomputer U6 connects single-chip microcomputer U7, the 6th pin of model M2408MN6, the 62nd pin order piece of single-chip microcomputer U6
Machine U7, the 5th pin of model M2408MN6, the 63rd pin of single-chip microcomputer U6 ground connection, shunt-wound capacitance C33 one end, another termination of electric capacity C33
Power supply 3V positive pole, and connect the 64th pin of single-chip microcomputer U6.
3. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described audio frequency is hard
Have in part decoder module (4) circuit：Single-chip microcomputer U2, model VS1053B, agitator Y1, model XTAL, electric capacity C7-C22, resistance
R9-R14；
Its annexation is：Described the 6th pin of single-chip microcomputer U2 connects the 14th and the 19th pin, and connects DC source 33V positive pole, and
Electric capacity C7 one end, electric capacity C8 one end, electric capacity C9 one end is connect, the electric capacity C7 other end, the electric capacity C8 other end, the electric capacity C9 other end all connect
Ground；The 5th pin of single-chip microcomputer U2 connects the 7th, the 24th, the 31st pin, and connect DC source 18V positive pole, shunt-wound capacitance C10 one end, electricity
Hold C11 one end, electric capacity C12 one end, electric capacity C13 one end, the electric capacity C10 other end, the electric capacity C11 other end, the electric capacity C12 other end,
The electric capacity C13 other end is all grounded, the 26th pin connecting resistance R9 one end of single-chip microcomputer U2, and another termination DC source 33V of resistance R9 is just
Pole；The 4th pin of single-chip microcomputer U2 connects the 16th, the 20th, the 21st, the 22nd, the 35th pin, and be grounded；The 4th pin of single-chip microcomputer U2 connects the 38th
Pin connects the 43rd, the 45th pin, and connects DC source 33VA positive pole, shunt-wound capacitance C16 one end, electric capacity C17 one end, electric capacity C18
One end, the electric capacity C16 other end, the electric capacity C17 other end, the electric capacity C18 other end are all grounded；The 44th pin of single-chip microcomputer U2 connects electric capacity
C19 one end, the electric capacity C19 other end is grounded；The 37th pin of single-chip microcomputer U2 connects the 40th, the 41st, the 47th pin be grounded；Single-chip microcomputer U2
42nd pin connecting resistance R14 one end, another termination capacitor C22 one end of resistance R14, the electric capacity C22 other end is grounded, single-chip microcomputer U2 the
39 pin connecting resistance R13 one end, another termination capacitor C21 one end of resistance R13, the electric capacity C21 other end is grounded, single-chip microcomputer U2 the 46th
Pin connecting resistance R12 one end, another termination capacitor C20 one end of resistance R12, the electric capacity C20 other end is grounded, and single-chip microcomputer U2 the 34th is managed
Foot connects the 33rd pin, and connecting resistance R11 one end, and the resistance R11 other end is grounded, and the 17th pin of single-chip microcomputer U2 meets agitator Y1 mono-
End, and connecting resistance R10 one end, shunt-wound capacitance C14 one end, the agitator Y1 other end connects the 18th pin of single-chip microcomputer U2, and connects electricity
Hold C34 one end resistance R10 other end and connect the 18th pin of single-chip microcomputer U2, shunt-wound capacitance C15 one end, electric capacity C15 other end ground connection, electricity
The resistance R10 other end connects the 18th pin of single-chip microcomputer U2, shunt-wound capacitance C15 one end, and the resistance R10 other end connects the pipe of single-chip microcomputer U2 the 18th
Foot, shunt-wound capacitance C15 one end, and connect the agitator Y1 other end；The 32nd pin of single-chip microcomputer U2 connects DC source 33V positive pole, monolithic
The 3rd pin of machine U2 connects the 10th pin of audio hardware decoder module interface 10P1TX, and the 8th pin of single-chip microcomputer U2 connects audio hardware decoding
The 9th pin of module interface 10P1, the 13rd pin of single-chip microcomputer U2 connects the 23rd pin of audio hardware decoder module interface 10P1, single-chip microcomputer
The 13rd pin of U2 connects the 5th pin of audio hardware decoder module interface 10P1, and the 23rd pin of single-chip microcomputer U2 connects audio hardware decoding mould
The 4th pin of block interface 10P1, the 28th pin of single-chip microcomputer U2 meets the 6th pin of audio hardware decoder module interface 10P1, single-chip microcomputer U2
29th pin connects the 7th pin of audio hardware decoder module interface 10P1, and the 30th pin of single-chip microcomputer U2 connects audio hardware decoder module
The 8th pin of interface 10P1.
4. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described mixer
Have in module (3) circuit：Single-chip microcomputer U1, model OPA2301, electric capacity C1-C6, resistance R1-R8；
Its annexation is：Described the 1st pin connecting resistance R1 one end of single-chip microcomputer U1, and earphone socket audio output Lout is connect,
Another terminating resistor R2 one end of resistance R1, and the 2nd pin of single-chip microcomputer U1, and connecting resistance R5 one end is connect, another termination electricity of resistance R5
Hold C3 one end, another termination capacitor C1 one end of another termination audio input S out, resistance R2 of electric capacity C3, another termination of electric capacity C1
L channel is exported；The 3rd pin connecting resistance R7 one end of single-chip microcomputer U1, and connecting resistance R8 one end, and the 5th pin of single-chip microcomputer U1 is connect, electricity
Another termination capacitor C6 one end of resistance R7, and VCCA is met, the electric capacity C6 other end is grounded, and the resistance R8 other end is grounded, and connects single-chip microcomputer
The 4th pin of U1, the 5th pin connecting resistance R8 one end of single-chip microcomputer U1, and connect polar capacitor C3 positive pole one end, polar capacitor C3 negative pole one
End ground connection；The 6th pin connecting resistance R6 one end of single-chip microcomputer U1, and connecting resistance R4 one end, and connecting resistance R3 one end, the resistance R6 other end
Electric capacity C4 one end is connect, another termination capacitor C2 one end of another termination audio output L out, resistance R4 of electric capacity C4, electric capacity C2 is another
Termination R channel input, the resistance R3 other end connects the 7th pin of single-chip microcomputer U1, and connects earphone socket audio input Rout；Single-chip microcomputer
The 8th pin of U1 meets VCC5A.
5. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described wave filter
Have in module (2) circuit：Single-chip microcomputer U5, model OPA2301, electric capacity C29, C30, C31, C32, resistance R16, resistance R17, resistance
R18, resistance R19；
Its annexation is：Described the 1st pin of single-chip microcomputer U5 connects the 2nd pin, shunt-wound capacitance C29 one end, and meets electric resistance R19
One end, the 3rd pin connecting resistance R17 one end of single-chip microcomputer U5, shunt-wound capacitance C30 one end, the electric capacity C30 other end is grounded, and resistance R17 is another
The one termination capacitor C29 other end, and connecting resistance R16 one end, another termination Hin input of resistance R16, the 4th pin of single-chip microcomputer U5 connects
Ground, the 7th pin of single-chip microcomputer U5 connects the 6th pin, and connects Sout output, shunt-wound capacitance C31 one end, another terminating resistor of electric capacity C31
The R19 other end, and connecting resistance R18 one end, the 5th pin connecting resistance R18 other end of single-chip microcomputer U5, shunt-wound capacitance C32 one end, electric capacity
The C32 other end is grounded, and the 8th pin of single-chip microcomputer U5 connects power supply 5VA positive pole.
6. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described power supply mould
Have in block I (5) circuit：Single-chip microcomputer U3, model AMSI117-3.3, electric capacity C23, electric capacity C24, electric capacity C25, electric capacity C26, resistance
R15, resistance R90；
Its annexation is：Described single-chip microcomputer U3 input termination power 5V positive pole, and connecting resistance R90 one end, resistance R90 is another
Termination DC source 5V positive pole, shunt-wound capacitance C26 one end, the electric capacity C26 other end is grounded, and single-chip microcomputer U3 exports termination power 33V
Positive pole, shunt-wound capacitance C23 positive pole one end, shunt-wound capacitance C25 one end, and connecting resistance R15 one end, the electric capacity C23 other end is grounded, electricity
Hold C25 other end ground connection, resistance R15 another termination power 33VA, shunt-wound capacitance C24 one end, electric capacity C24 other end ground connection.
7. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described power supply mould
Have in block II (6) circuit：Single-chip microcomputer U4, model AMSI117-1.8, electric capacity C27, electric capacity C28, resistance R90；
Its annexation is：Described single-chip microcomputer U4 input termination power 33V positive pole, and power supply 3V3 positive pole is connect, output termination electricity
Source 18V positive pole, shunt-wound capacitance C27 one end, shunt-wound capacitance C28 one end, the electric capacity C27 other end is grounded, another termination of electric capacity C28
Ground, and single-chip microcomputer U4GND end, and connecting resistance R90 one end is connect, the resistance R90 other end is grounded.
8. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described microprocessor
Also include in device control module (1) circuit：Single-chip microcomputer U7, model M24C08MN6, resistance R29, resistance R31, electric capacity C49；
Its annexation is：Described the 3rd pin of single-chip microcomputer U7 connects the 7th pin, and connects the 4th pin, and is grounded, single-chip microcomputer U7
6 pins meet the 61st pin of single-chip microcomputer U6, and connecting resistance R29 one end, another termination power 3V3 positive pole of resistance R29, single-chip microcomputer U7
1 pin connects the 2nd pin ground connection, and the 5th pin of single-chip microcomputer U7 meets the 62nd pin of single-chip microcomputer U6, and connecting resistance R31 one end, resistance R31
Another termination power 3V3 positive pole, the 8th pin of single-chip microcomputer U7 connects electric capacity C49 one end, and connects power supply 3V3 positive pole, and electric capacity C49 is another
End ground connection.
9. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described mixer
Module (3) also includes earphone socket circuit J1, model PHonejack3, and L channel exports Lout, R channel output R out, delays
Rush device GBUF；
Its annexation is：Described L channel output Lout connects the 1st pin of single-chip microcomputer U1, and R channel exports R out order piece
The 7th pin of machine U1, buffer GBUF connects the 42nd pin of single-chip microcomputer U2.
10. according to claim 1 a kind of compensation frequency-adjustable audio player, it is characterised in that：Described micro- place
Also include microprocessor control module sdCard interface J2 circuit in reason device control module (1) circuit, wherein have：Interface J2, type
Number sdCard, resistance R20-R24, electric capacity C35；
Its annexation is：Described the 0th pin of microprocessor control module sdCard interface J2 ground connection, the 9th pin order piece
The 51st pin of machine U6, and connecting resistance resistance R20 one end, another termination power 3V3 positive pole of R20, the 1st pin meets single-chip microcomputer U6 the 52nd
Pin, and connecting resistance R21 one end, another termination power 3V3 positive pole of R21, the 2nd pin connects the 54th pin of single-chip microcomputer U6, and connects electricity
Resistance R22 one end, another termination power 3V3 positive pole of R22, the 3rd pin connects electric capacity C35 one end, and connects the 6th pin, and is grounded, electric capacity
Another termination power 3V3 positive pole of C35, the 4th pin connects power supply 3V3 positive pole, and the 5th pin connects the 53rd pin of single-chip microcomputer U6, the 7th pin
Connect the 39th pin of single-chip microcomputer U6, and connecting resistance R23 one end, another termination power 3V3 positive pole of resistance R23, the 8th pin connects single-chip microcomputer
The 40th pin of U6, and connecting resistance R24 one end, another termination power 3V3 positive pole of resistance R24.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136490.3A CN106454643A (en) | 2016-12-03 | 2016-12-03 | Audio player with adjustable compensation frequency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611136490.3A CN106454643A (en) | 2016-12-03 | 2016-12-03 | Audio player with adjustable compensation frequency |
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