CN204887341U

CN204887341U - Novel practise microphone of vocal usefulness

Info

Publication number: CN204887341U
Application number: CN201520606447.3U
Authority: CN
Inventors: 姜姗姗; 张莹莹
Original assignee: Heihe University
Current assignee: Heihe University
Priority date: 2015-08-13
Filing date: 2015-08-13
Publication date: 2015-12-16
Anticipated expiration: 2025-08-13

Abstract

The utility model provides a novel practise microphone of vocal usefulness, relates to the music field, effectively improves vocal music technical ability in order to provide a training device, the utility model discloses form by microphone and record playback set, the microphone includes microphone head, handle, switch triplex, on the microphone head was connected to the handle, switching system was on the handle, and the switch can reciprocate, record and play back sound equipment and include resistance, crystal oscillator, ISD2500 pronunciation chip, AT24C02 parameter save chip, STC90C52 singlechip microprocessor, electrolytic capacitor, speaker, air dielectric variable capacitor, be microphone power closed condition during microphone switch center adjustment, when the microphone switch pushes up, the recording of microphone get under way, during the push -down of microphone switch, the sound of microphone beginning playback admission is through contrasting the purpose that reaches effective improvement practitioner vocal music skill after the sound reproduction.

Description

A kind of novel microphone done vocal exercises

Technical field

The utility model relates to music field, specifically refers to a kind of novel microphone done vocal exercises.

Background technology

Energy of Vocal Music is the subject that a special kind of skill and practicality are very strong, only go to carry out learning to be very difficult with knowwhy and literature data, it is mainly progressively completed by correct pronounciation training and the training of continuous song, existing vocal music exercise equipment kind is less, function is limited, is therefore badly in need of a kind of exercise equipment to reach the object effectively improving vocal music technical ability.

Utility model content

The utility model provides a kind of novel microphone done vocal exercises, and can play booster action in vocal music exercise, effective raising vocal music technical ability.

The utility model proposes a kind of new technique scheme for above-mentioned technical problem: a kind of novel microphone done vocal exercises, and the described novel microphone done vocal exercises is made up of microphone and recording and playing device,

Described microphone comprises microphone head, handle, switch three part, and described microphone head is connected on handle, and switch-linear hybrid is on handle, and switch can move up and down;

Described audio playback equipment comprises resistance, crystal oscillator, ISD2500 speech chip, the preservation of AT24C02 parameter chip, STC90C52 singlechip microprocessor, electrochemical capacitor, loud speaker and air dielectric variable capacitor, and the signal of telecommunication connects each other;

STC90C52 singlechip microprocessor inside comprises preamplifier, internal clocking, timer, sampling clock, filter, automatic growth control, logic control, analog transceiver and decoder, and the signal of telecommunication connects each other;

Wherein, AT24C02 parameter preserve chip include 8kbytes can be repeatedly erasable Flash read-only program memory and the random access data storage of 256bytes;

ISD2500 speech chip is integrated with microphone preamplifier (AMP), automatic gain control circuit (AGC), antialiasing and smoothing filter, analog storage array, loudspeaker drive, the accurate reference clock of control interface and inside, the signal of telecommunication connects each other, described ISD2500 speech chip comprises 27 pins, pin 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 is ground connection, pin 11 is auxiliary input, pin 12, 13 is digital simulation ground connection, pin 14, 15 is loud speaker output, pin 16, 18 is simulation, digital signal positive source, pin 17, 18 is microphone input and input reference edge, pin 19 is automatic growth control, pin 20, 21 is analog signal input and output, pin 22 is held for power supply overflows, pin 23 is for selecting port, pin 24 is the control of chip low power consumpting state, pin 25 is the output of record/playback end signal, pin 26 is external clock, pin 27 is recording playback control selection.

The beneficial effects of the utility model: this programme preserves chip and STC90C52 singlechip microprocessor by using ISD2500 speech chip, AT24C02 parameter, make circuit structure more simplify, function are more powerful; Microphone and playback circuitry unite two into one by this programme, reach the object effectively improving practitioner's vocal music skill.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model.

Fig. 2 is sound chip circuit structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing 1, Fig. 2 example, the utility model is described in further detail.

The technical solution adopted in the utility model is: a kind of novel microphone done vocal exercises, and the described novel microphone done vocal exercises is made up of microphone and recording and playing device,

Described microphone comprises microphone head 1, handle 2, switch 3 three part, and described microphone head 1 is connected on handle 2, and switch 3 is arranged on handle 2, and switch 3 can move up and down;

Described audio playback equipment comprises resistance 4, crystal oscillator 5, ISD2500 speech chip 6, the preservation of AT24C02 parameter chip 7, STC90C52 singlechip microprocessor 8, electrochemical capacitor 9, loud speaker 10 and air dielectric variable capacitor 11, and the signal of telecommunication connects each other;

STC90C52 singlechip microprocessor 8 inside comprises preamplifier, internal clocking, timer, sampling clock, filter, automatic growth control, logic control, analog transceiver and decoder, and the signal of telecommunication connects each other;

Wherein, AT24C02 parameter preserve chip 7 include 8kbytes can be repeatedly erasable Flash read-only program memory and the random access data storage of 256bytes;

ISD2500 speech chip 6 is integrated with microphone preamplifier (AMP), automatic gain control circuit (AGC), antialiasing and smoothing filter, analog storage array, loudspeaker drive, the accurate reference clock of control interface and inside, the signal of telecommunication connects each other, described ISD2500 speech chip 6 comprises 27 pins, pin 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 is ground connection, pin 11 is auxiliary input, pin 12, 13 is digital simulation ground connection, pin 14, 15 is loud speaker output, pin 16, 18 is simulation, digital signal positive source, pin 17, 18 is microphone input and input reference edge, pin 19 is automatic growth control, pin 20, 21 is analog signal input and output, pin 22 is held for power supply overflows, pin 23 is for selecting port, pin 24 is the control of chip low power consumpting state, pin 25 is the output of record/playback end signal, pin 26 is external clock, pin 27 is recording playback control selection.

This programme operation principle is as follows: be MPS microphone power supply closed condition when microphone switch 2 is put middle; When microphone switch 2 pushes away, microphone starts to record; When microphone switch pushes away for 2 times, microphone starts the sound of playback admission, by carrying out contrasting the object reaching and improve self-sounding skill after playback.

Claims

1. the novel microphone done vocal exercises, the described novel microphone done vocal exercises is made up of microphone and recording and playing device, it is characterized in that:

Described microphone comprises microphone head (1), handle (2), switch (3) three part, and described microphone head (1) is connected on handle (2), and switch (3) is arranged on handle (2), and switch (3) can move up and down;

Described audio playback equipment comprises resistance (4), crystal oscillator (5), ISD2500 speech chip (6), AT24C02 parameter preservation chip (7), STC90C52 singlechip microprocessor (8), electrochemical capacitor (9), loud speaker (10) and air dielectric variable capacitor (11), and the signal of telecommunication connects each other;

STC90C52 singlechip microprocessor (8) inside comprises preamplifier, internal clocking, timer, sampling clock, filter, automatic growth control, logic control, analog transceiver and decoder, and the signal of telecommunication connects each other;

Wherein, AT24C02 parameter preserve chip (7) include 8kbytes can be repeatedly erasable Flash read-only program memory and the random access data storage of 256bytes;

ISD2500 speech chip (6) is integrated with microphone preamplifier (AMP), automatic gain control circuit (AGC), antialiasing and smoothing filter, analog storage array, loudspeaker drive, the accurate reference clock of control interface and inside, the signal of telecommunication connects each other, described ISD2500 speech chip (6) comprises 27 pins, pin 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 is ground connection, pin 11 is auxiliary input, pin 12, 13 is digital simulation ground connection, pin 14, 15 is loud speaker output, pin 16, 18 is simulation, digital signal positive source, pin 17, 18 is microphone input and input reference edge, pin 19 is automatic growth control, pin 20, 21 is analog signal input and output, pin 22 is held for power supply overflows, pin 23 is for selecting port, pin 24 is the control of chip low power consumpting state, pin 25 is the output of record/playback end signal, pin 26 is external clock, pin 27 is recording playback control selection.