CN2807396Y

CN2807396Y - Electronic instrument tuner

Info

Publication number: CN2807396Y
Application number: CN 200520061200
Authority: CN
Inventors: 黄葵; 徐建
Original assignee: WEIKE ELECTRONIC SCIENCE-TECHNOLOGY DEVELOPMENT Co Ltd SHENZHEN
Current assignee: WEIKE ELECTRONIC SCIENCE-TECHNOLOGY DEVELOPMENT Co Ltd SHENZHEN
Priority date: 2005-07-04
Filing date: 2005-07-04
Publication date: 2006-08-16
Anticipated expiration: 2015-07-04

Abstract

The utility model discloses an electronic sound calibrating device. The utility model comprises an input operating unit, a single chip computer controlling unit and an LCD displaying unit, wherein the input operating unit comprises a selection input operating unit which is used for generating pulse signals; the single chip computer controlling unit comprises a selection controlling unit which is corresponding to the selection input operating unit and is used for completing chord sequence selection. The selection input operating unit, the selection controlling unit and the LCD displaying unit are in signal connection, and the selection input operating unit is an encoder which can emit the pulse signals towards the selection controlling unit. When the utility model is applied, the encoder is rotated, and chord sequence can be selected through a chord sequence selecting program which is solidified on a single chip computer; the trouble that the existing electronic sound calibrating device uses keystrokes to input selected chord sequence is avoided, and the chord sequence selection of the electronic sound calibrating device can be completed conveniently and rapidly.

Description

A kind of electronic tonometer

[technical field]

The utility model relates to a kind of electro-acoustic device, particularly a kind of electronic tonometer.

[background technology]

In musical instrument study, the accuracy in pitch of musical instrument is very important, if the sound of musical instrument is inaccurate, meeting influences the judgement of pitch and influences hearing, and can influence playing effect, destroy the music musicality, thereby destroy the learning interest of music-learner music, so before playing an instrument, must carry out tuner to the musical instrument of learning and play with CALIBRATION.Electronic tonometer is a kind ofly to measure the musical instrument sound frequency and indicate musical alphabet and the electronic device of accuracy in pitch deviation.Though the most frequently used twelve-tone equal temperament CALIBRATION can be used for the tuner of any musical instrument, but when being used for that stringed musical instrument carried out tuner, do not show by the string preface of school string and musical alphabet etc., and most of beginners can not grasp the musical alphabet of choosing the string correspondence fast, need electronic beat sound-calibrator can provide a kind of and can show, therefore when stringed musical instrument is carried out tuner, need carry out the string preface and select by the string preface and the musical alphabet of school string.

In music teaching, musical instrument exercise and other music practice, metronome and CALIBRATION all have a wide range of applications.Learning music, musical instrument be unable to do without training and grasp beat accurately, and metronome is the indispensable instrument of learning music and musical instrument always.Electronic beat sound-calibrator then is that metronome and CALIBRATION are united two into one, have beat demonstration or two kinds of functions of tuner simultaneously concurrently, and with the organic electronic apparatus that merges of the control module of metronome and CALIBRATION, its volume size and production cost all are more or less the same with the electronic metronome or the CALIBRATION of simple function, numerous users' welcome occurs being subjected to afterwards.Though the electronic beat sound-calibrator twelve-tone equal temperament CALIBRATION of normal employing can be used for the tuner of any musical instrument, but when being used for that stringed musical instrument carried out tuner, do not show by the string preface of school string and musical alphabet etc., and most of beginners can not grasp the musical alphabet of choosing the string correspondence fast, need electronic beat sound-calibrator can provide a kind of and can show, therefore when stringed musical instrument is carried out tuner, need carry out the string preface and select by the string preface of school string and the function of musical alphabet.

Existing electronic tonometer and electronic beat sound-calibrator have automatic selection string preface and manually select two kinds of string prefaces.The voice messaging that the electronic tonometer of automatic selection string preface obtains according to acoustic pickup shows automatically by string preface, the musical alphabet of school string and indicates the cent deviation that this is convenient, practical concerning well-trained professional instrument playing personnel.And concerning most beginners, under automatic tuner pattern, and do not undertaken under the situation of initial adjustment by the tuner musical instrument, when certain string is too tight or too loose, the frequency range of this string can be gone to the frequency range of its adjacent string, therefore manually at this moment can think it is adjacent string preface by mistake, selecting the string preface is that a lot of people like the mode selected for use.And the electronic tonometer of existing manual selection string preface is finished the selection of string preface by a string preface selection key is set, change to 21 will stop preface options buttons 20 times such as the string sequence number from 01, or pin string preface options button always, observation display changes to 21 by 01 and can realize.How to avoid existing electronic tonometer to use loaded down with trivial details that the button input carries out that manual string preface selects, and how to make the string preface of electronic tonometer select to accomplish convenient, fast, be the problem that manufacturer transforms existing electronic tonometer always.

[utility model content]

Technical matters to be solved of the present utility model is to provide a kind of electronic tonometer, and it can allow the user use electronic tonometer to carry out can using when manual string preface is selected scrambler to carry out the selection of string preface, thereby makes the string preface select to accomplish convenient, fast.

The technical solution of the utility model is as described below:

A kind of electronic tonometer, comprise the input operation unit, the Single-chip Controlling unit, the LCD display unit, the input operation unit comprises the selection input operation unit that is used to produce pulse signal, the Single-chip Controlling unit comprises and selects the corresponding selection control module that is used to finish the selection of string preface in input operation unit, select the input operation unit, select signal connection between control module, the LCD display unit, it is characterized in that described selection input operation unit is one can be to selecting control module send the scrambler of pulse signal.

Described electronic tonometer also comprises an electronic metronome.This electronic beat sound-calibrator has realized having concurrently beat demonstration, two kinds of functions of tuner in same device, and use scrambler manually to select the string preface, avoid existing electronic tonometer to use the button input to carry out the loaded down with trivial details of manual string preface selection, make the user can manually carry out the string preface quickly and easily and select.

Described scrambler, comprise three ports, be respectively end A, end B and end C, the end A of scrambler, end B are connected with two basic points of its inside, all be connected on the input end of Single-chip Controlling unit, the end C of scrambler links to each other with its inner slider, and end A, end B, end C is respectively corresponding is connected with ground with power supply; Described end C ground connection, end A, end B are connected to power Vcc by resistance R 1, R2 respectively; Described end C connects power Vcc, and end A, end B are respectively by resistance R 1, R2 ground connection;

Described selection control module comprises and is used to receive the pulse signal of selection input operation unit transmission and carries out the string preface selection module that the string preface is selected according to the pulse signal that is received; And the string preface that is used for choosing string exports a string preface output module of the tuner unit of LCD display unit and Single-chip Controlling unit to.

Use the utility model, rotating the string preface selects scrambler to select the string preface by the string preface option program that is solidificated on the single-chip microcomputer, avoided existing electronic tonometer to use the button input to select the loaded down with trivial details of string preface, can finish the string preface of electronic tonometer quickly and easily and select.

[description of drawings]

Fig. 1 is the theory diagram of the utility model embodiment 1 electronic tonometer.

Fig. 2 is the circuit theory synoptic diagram of the selection input operation unit of the utility model electronic tonometer.

Fig. 3 is another circuit theory synoptic diagram that the utility model electronic tonometer is selected the input operation unit.

Fig. 4 is the theory diagram of the utility model embodiment 2 electronic tonometers.

[embodiment]

Embodiment 1

As shown in Figure 1, be the theory diagram of the utility model electronic tonometer.This electronic tonometer comprises: a Single-chip Controlling unit 1, a LCD display unit 2, a led display unit 3, a signal processing unit 4, an input operation unit 5 and a signal receiving unit 6.Signal processing unit 4 and input operation unit 5 are connected to the input end of Single-chip Controlling unit 1, the output termination LCD display unit 2 and the led display unit 3 of Single-chip Controlling unit 1; The input end of the output termination signal processing unit 4 of signal receiving unit 6.

Single-chip Controlling unit 1 comprises that one selects control module 10 and curing a series of programs thereon, and carries out string preface option program according to the operational order of the 5 users' inputs that receive from the input operation unit and finish string preface selection function.Described program comprises string preface option program, tuner program etc.Select control module 10 to comprise a string preface selection module 100 and a string preface output module 102.The string preface selects module 100 to be used to receive the pulse signal of user by 5 inputs of input operation unit, and carries out the string preface option program that is solidificated on the Single-chip Controlling unit 1 according to the pulse signal that is received and select the string preface.The string preface that string preface output module 102 is used for choosing string exports the tuner unit (figure does not show) of LCD display unit 2 and Single-chip Controlling unit 1 to.

LCD display unit 2 is used to show string preface, musical alphabet and the cent deviation of choosing string.

Input operation unit 5 comprises that one selects input operation unit 50, is used to receive user's operational order, again the operational order of user's input is converted to pulse signal.Selecting input operation unit 50 is one can be to selecting control module 10 send the scrambler of pulse signal.As shown in Figures 2 and 3, be the electric principle schematic that the utility model electronic tonometer is selected input operation unit 50.Selecting input operation unit 50 is scramblers 500, comprises three ports, is respectively end A, end B and end C.Wherein the end A of scrambler 500, end B are connected with two basic points (figure does not show) of its inside respectively, all are connected on the input end of Single-chip Controlling unit 1; The end C of scrambler 500 links to each other with its inner slider (figure does not show).When end C ground connection, hold A, end B to be connected to power Vcc by resistance R 1, R2 respectively in use; When end C connects power Vcc, hold A, end B in use respectively by resistance R 1, R2 ground connection.

In the process of rotary encoder 500, with the slider that links to each other of end C can be inswept successively and the end A of scrambler 500 and two basic points holding B to be connected, the time clock of end A and end B is successively from current level changeabout level, thereby produce a pulse signal separately at end A and end B two ends, have a phase differential between these two pulse signals.Phase differential comprises positive phase difference and negative phase difference.The scrambler 500 that turns clockwise produces a positive phase difference, is rotated counterclockwise scrambler 500 and produces a negative phase difference.End A, end B are sent to Single-chip Controlling unit 1 with dephased pulse signal, and it is that positive phase difference or negative phase difference add one or subtract one and select to finish the string preface according to the phase differential in the pulse signal that is received that the string preface is selected module 100.

After finishing the selection of string preface, string preface output module 102 will choose the string preface of string to export the tuner unit of LCD display unit 2 and Single-chip Controlling unit 1 to.LCD display unit 2 will choose string preface, musical alphabet, the cent deviation of string to export to the user.

Embodiment 2

As shown in Figure 4, be the theory diagram of the utility model embodiment 2 electronic tonometers.This electronic tonometer comprises: a Single-chip Controlling unit 1, a LCD display unit 2, a led display unit 3, a signal processing unit 4, an input operation unit 5, a signal receiving unit 6, a voice unit 7, a power amplifier unit 8.Signal processing unit 4 and input operation unit 5 are connected to the input end of Single-chip Controlling unit 1, the output termination LCD display unit 2 of Single-chip Controlling unit 1 and led display unit 3, voice unit 7, power amplifier unit 8; The input end of the output termination signal processing unit 4 of signal receiving unit 6; The input end of the output termination power amplifier unit 8 of voice unit 7.

Present embodiment is on the basis of existing electronic beat sound-calibrator (electronic beat sound-calibrator that has beat demonstration and two kinds of functions of tuner when being the two combination of electronic metronome and electronic tonometer), has set up the function of selecting the string preface with scrambler.Its circuit structure part and embodiment 1 have compared voice unit 7 and power amplifier unit 8 many.Voice unit 7 is used to export voice messaging; Power amplifier unit 8 is used for the acoustic information and the voice messaging of output are amplified.

Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims

1, a kind of electronic tonometer, comprise input operation unit (5), Single-chip Controlling unit (1), LCD display unit (2), input operation unit (5) comprises the selection input operation unit (50) that is used to produce pulse signal, the Single-chip Controlling unit comprises and selects the corresponding selection control module (10) that is used to finish the selection of string preface in input operation unit, select the input operation unit, select control module, signal connects between the LCD display unit, it is characterized in that described selection input operation unit is one can be to selecting control module send the scrambler (500) of pulse signal.

2, electronic tonometer according to claim 1 is characterized in that, described electronic tonometer also comprises an electronic metronome.

3, electronic tonometer according to claim 1 and 2, it is characterized in that, described scrambler comprises three ports, be respectively end A, end B and end C, the end A of scrambler, end B are connected with two basic points of its inside, all be connected on the input end of Single-chip Controlling unit, the end C of scrambler links to each other with its inner slider, and end A, end B, end C is respectively corresponding is connected with ground with power supply.

4, electronic tonometer according to claim 3 is characterized in that, described end C ground connection, and end A, end B are connected to power Vcc by resistance R 1, R2 respectively.

5, electronic tonometer according to claim 3 is characterized in that, described end C connects power Vcc, and end A, end B are respectively by resistance R 1, R2 ground connection.

6, electronic tonometer according to claim 1 and 2, it is characterized in that described selection control module comprises and is used to receive the pulse signal of selection input operation unit transmission and carries out the string preface selection module (100) that the string preface is selected according to the pulse signal that is received; And

Be used for to choose the string preface of string to export a string preface output module (102) of the tuner unit of LCD display unit and Single-chip Controlling unit to.

7, electronic tonometer according to claim 3, it is characterized in that described selection control module comprises and is used to receive the pulse signal of selection input operation unit transmission and carries out the string preface selection module (100) that the string preface is selected according to the pulse signal that is received; And

8, electronic tonometer according to claim 4, it is characterized in that described selection control module comprises and is used to receive the pulse signal of selection input operation unit transmission and carries out the string preface selection module (100) that the string preface is selected according to the pulse signal that is received; And

9, electronic tonometer according to claim 5, it is characterized in that described selection control module comprises and is used to receive the pulse signal of selection input operation unit transmission and carries out the string preface selection module (100) that the string preface is selected according to the pulse signal that is received; And