CN107146597A - A kind of self-service tuning system of piano and tuning method - Google Patents
A kind of self-service tuning system of piano and tuning method Download PDFInfo
- Publication number
- CN107146597A CN107146597A CN201610631680.6A CN201610631680A CN107146597A CN 107146597 A CN107146597 A CN 107146597A CN 201610631680 A CN201610631680 A CN 201610631680A CN 107146597 A CN107146597 A CN 107146597A
- Authority
- CN
- China
- Prior art keywords
- tuning
- group
- piano
- frequency
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10G—REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
- G10G7/00—Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings
- G10G7/02—Tuning forks or like devices
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C9/00—Methods, tools or materials specially adapted for the manufacture or maintenance of musical instruments covered by this subclass
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/44—Tuning means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
The present invention provides a kind of self-service tuning system of piano, the self-service tuning system of described piano uses the frequency values in the piano accuracy in pitch curve corrected automatically by harmonic frequency as the tuner standard of each sound, the actual fundamental frequency calculated with treble, middle register, bass area using algorithms of different is contrasted, tuning suggestion is provided, the self-service tuning system of described piano includes tuning selecting unit, audio collection unit, frequency analysis unit, accuracy in pitch curve amendment unit, frequency contrast unit and result output unit.The present invention provides a kind of self-service tuning mode, and the self-service tuning of piano can be completed according to the prompting of the present invention；The present invention is directed to the different qualities of every frame piano, automatically generate different piano accuracy in pitch curves and carry out tuner, the tuning suggestion of professional tuner's grade is provided, the note recalled according to such a method closes the relatively low horizontal anti-S types accuracy in pitch curve of every higher bass of frame piano high pitch, tone color natural harmony.
Description
Technical field
The present invention relates to a kind of musical instrument field, and in particular to a kind of self-service tuning system of piano and tuning method.
Background technology
Piano adjusts inaccurate sound, usual family to keep the accuracy of qin sound, it is necessary to periodically be checked by professional
Needed to carry out a tuning in half a year to year with piano.For a long time, tuner of the piano tone tuning dependent on specialty,
Not only expensive, inconvenience, and the quality of tuning influenceed by the level of pianist, and hearing is preeminent after all, musical quality
High outstanding piano tuner's quantity is seldom.
Current existing piano automatic tuning instrument, it is expensive and device is complicated, poor practicability.Such as patent
Automatic tuning device for pianos and its method for automatic tuning that CN101807391A is mentioned, such a automatic tuning device for pianos include
Piano body and automatic tone tuning device, piano and automatic tone tuning device are supporting, it is impossible to take exclusive use apart.But make in actual
During, user typically have purchased piano, or user can select purchase oneself to like, to meet user specific
The piano of demand.User is what is required is simply that a tuning device, it is impossible to supporting piano is bought for automatic tone tuning device,
Poor practicability.In addition, such a automatic tuning device for pianos is complicated, stepper motor, mechanical hand and speed reduction gearing are utilized
To realize automatic tuning, nobody's hand dexterity and feel, while tuning has certain precision limitation, in actual use
There is very big defect.Especially in the treble of piano, string is very sensitive, and very big change can all be had by rotating a dot frequency.Therefore,
Automatic tone tuning device practicality in actual use is poor.
Also there is some tuning devices and system in the market, the feedback of tuner, many organ stops are included according to user
All there is the problem of detecting not accurate enough in the bass area of piano and treble, testing result can only be referred to as one, therefore,
It is naturally not accurate enough according to the sound that such a organ stop is recalled.
In addition, there is situations below in piano tone tuning.One piano for having been harmonized by professional tuner, the height of its 88 sounds
Degree not complies fully with the result of theoretical calculation (standard frequency), but simply in middle register (28C-52C) generally proximal to theory
Value, by 52C upwards it is gradually higher, by 28C downwards it is then gradually relatively low, descant, contrabass deviation up to 30 cents above and below, with
Standard frequency is not to comply fully with.But existing piano tuner be according to the standard frequency of piano as tuner standard to
Go out adjustment suggestion, although each sound of the piano sound recalled in this, as standard meets standard frequency, tone color is stiff, lacks certainly
Right harmonious U.S..Therefore, it is irrational to carry out tuning according to standard frequency.
High-caliber professional piano tuner is in tuning, and meeting meets high pitch higher according to the rule of piano accuracy in pitch curve
The relatively low horizontal reversed S shape of bass carries out tuning, and the sound so recalled could both meet the demand of accuracy in pitch, and piano is kept again certainly
Right harmonious aesthetic feeling.Accuracy in pitch curve refers to be sketched the contours of according to the practical frequency value coordinate points average value that tuner debugs a certain piano
Round and smooth curve.
For the formation of accuracy in pitch curve, relatively more extensive view is that it is the self-characteristic and each frame piano of tuner
Two kinds of factor interactions of self-characteristic in the result of temperament.Accuracy in pitch curve is studied, be from source of sound --- the qin for understanding piano
String starts.String be from two ends exert oneself the elongated and submissive, stiffness that tenses not substantially, vibration depending on tension force solid matter
Line.The frequency of each overtone of preferable string is the integral multiple of fundamental frequency, and the piano string of practical application and non-ideal string, it submissive
Degree is not enough, is influenceed by stiffness and uniformity etc., complex relation is presented between its overtone frequency and fundamental frequency, there is anharmonic
Property, the i.e. slightly above integral multiple of fundamental frequency.So in octave extension temperament, because the pitch for being preced with sound is the secondary partials by root sound
(the first overtone) is determined, necessarily formed to treble gradually it is higher, to bass area gradually relatively low accuracy in pitch curve.
In addition, keystroke can also produce influence to accuracy in pitch curve.The string that hits of hammerhead lasts and influences whether that string is rigid and show.
Hit string and last short, string will be excited fully, rigidly fully be showed, and partials are able to fully discharge, and tone color is partially bright, frequency is tired out
Meter deviation is more exaggerated；Hit string and last length, then it is on the contrary.The string that hits that striking force directly affects hammerhead lasts, and undoubtedly also will
Influence is produced on accuracy in pitch curve.Briefly, great dynamicses keystroke, then hit string and last shorter, accuracy in pitch curve is slightly partially steep；It is on the contrary
Accuracy in pitch curve can be made slightly to put down partially.
More than being based on, piano accuracy in pitch curve by tuner self-characteristic and each frame piano self-characteristic shadow
Ring, the specific frequency values in accuracy in pitch curve are not fixed.But the accuracy in pitch curve being related in existing tuning device is fixed
The curve of value, can not automatically be corrected according to the difference of tuning piano to accuracy in pitch curve.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of self-service tuning system of piano and tuning method.
The present invention is inaccurate for prior art tuning；The theoretical pitch of prior art use is standard frequency as tuner mark
Standard, the sound tone color recalled is stiff, lacks U.S. of natural harmony, does not meet the relatively low horizontal anti-S types accuracy in pitch of the higher bass of piano high pitch
The problem of curve；Prior art is used with the accuracy in pitch curve for determining fixed value, it is impossible to according to the different characteristics of each frame piano
Using different accuracy in pitch curves, accuracy in pitch curve can not need the problem of piano of tuning is corrected automatically according to each frame, invention
A kind of self-service tuning system of piano and tuning method.
The present invention is adopted the following technical scheme that：
A kind of self-service tuning system of piano, the self-service tuning system of described piano is used and corrected automatically by harmonic frequency
Piano accuracy in pitch curve in frequency values as each sound tuner standard, from treble, middle register, bass area using it is different calculate
Method calculate actual fundamental frequency contrasted, provide tuning suggestion, the self-service tuning system of described piano including tuning selecting unit,
Audio collection unit, frequency analysis unit, accuracy in pitch curve amendment unit, frequency contrast unit and result output unit, wherein：Institute
The tuning selecting unit stated is used to select to carry out the note of tuning；Described audio collection unit is used to gather what piano was sent
Audio, incoming frequency analytic unit；Described frequency analysis unit is used for the harmonious voice frequency of actual fundamental frequency for analyzing the audio,
And the harmonious voice frequency of the actual fundamental frequency is inputted into accuracy in pitch curve amendment unit；Described accuracy in pitch curve amendment unit is used for basis
The harmonious voice frequency amendment accuracy in pitch curve of actual fundamental frequency that frequency analysis unit is provided, correspondence in revised accuracy in pitch curve is described
The frequency of tuning note is selected as the tuner standard of the audio；Described frequency contrast unit is used for described actual base
The harmonious voice frequency of frequency is contrasted and calculated with described tuner standard, and provides tuning suggestion according to result of calculation；Described
As a result output unit is used to export tuner testing result and tuning suggestion.
Described piano accuracy in pitch curve refers to the practical frequency value coordinate points average value that a certain piano is debugged according to tuner
The round and smooth curve sketched the contours of.Meet the sound that piano accuracy in pitch curve rule is recalled, meet the relatively low horizontal anti-S types of the higher bass of high pitch
Curve, the sound so recalled had both met the demand of accuracy in pitch, and the aesthetic feeling of piano natural harmony is kept again.Described piano accuracy in pitch is bent
Line is made up of the corresponding pitch (i.e. frequency) of 88 keys of piano.
Described bass area include on fingerboard big word group, two groups of one group of big word and big word (left side double bass starts,
11 black keys of totally 16 white keys)；It is (right that described treble includes three groups of small character, four groups of small character, five groups of small character on fingerboard
Side descant starts, 10 black keys of totally 15 white keys), described middle register include on fingerboard small character group, one group of small character,
Two groups of small character (15 black keys of totally 21 white keys in the middle of treble and bass area).
Further, the self-service tuning system of piano of the invention also includes standard pronunciation broadcast unit, and described standard pronunciation is broadcast
The audio file that unit stores 88 piano single-tones is put, the tone color is played in tuning and carries out pitch contrast auxiliary tuning,
The pitch of the audio meets accuracy in pitch curve and tone color natural harmony.
Further, described tuning selecting unit is used for the selection of sound area, sound group selection, musical alphabet selection, the tuning choosing
The selecting sequence for selecting unit is followed successively by the selection of sound area, sound group selection, musical alphabet selection.
Further, described sound area selects any one in bass area, middle register, treble.
Further, the sound group selection of the bass area is any one in big two groups of word, one group of big word, big word group
Kind, any one of the sound group selection of the middle register in small character group, one group of small character, two groups of small character, the treble
Any one of sound group selection in three groups of small character, four groups of small character, five groups of small character.
Further, musical alphabet selection selected from C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、A、#A/bIn B, B
Any one, described musical alphabet correspond to respectively roll call do, rise do/ drops re, re, rise re/ drops mi, mi, fa, rise fa/ drops sol,
Sol, liter sol/ drops la, la, liter la/ drops si, si.
Described musical alphabet C correspondence roll call do, described musical alphabet#C correspondence roll calls rise do, described musical alphabetbD correspondence roll call drops
Re, described musical alphabet D correspondence roll call re, described musical alphabet#D correspondence roll calls rise re, described musical alphabetbE correspondence roll call drop mi, institute
Musical alphabet E correspondence the roll calls mi, described musical alphabet F correspondence roll call fa, described musical alphabet stated#F correspondence roll calls rise fa, described musical alphabetbG correspondence roll call drops sol, described musical alphabet G correspondence roll call sol, described musical alphabet#G correspondence roll calls rise sol, described musical alphabetbA
Correspondence roll call drop la, described musical alphabet A correspondence roll call la, described musical alphabet#A correspondence roll calls rise la, described musical alphabetbB correspondences are sung
Name drop si, described musical alphabet B correspondence roll calls si.
In musical alphabet described in this specification#C/bD refers to two kinds of musical alphabets of same key in same sound group,#C orbD, both are of equal value, and pitch is identical in same sound group, the same key on correspondence fingerboard.Similarly,#D/bE、#F/bG、#
G/bA、#A/bThe musical alphabet on symbol "/" both sides refers to two kinds of musical alphabets of same key in same sound group in B, and pitch is identical, correspondence steel
Same key on piano key board.
Liter do/ drops re in roll call described in this specification refers to two kinds of roll calls of same key in same sound group,
Do or drop re is risen, both are of equal value, and pitch is identical in same sound group, the same key on correspondence fingerboard.Similarly, rise
Re/ drop mi, rise fa/ drop sol, rise sol/ drop la, rise la/ drop si in symbol "/" both sides roll call refer in same sound group it is same
Two kinds of roll calls of individual key, pitch is identical, the same key on correspondence fingerboard.
Further, one group of described big word, big word group, small character group, one group of small character, two groups of small character, three groups of small character and small
Four groups of word, each sound group musical alphabet selection selected from C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、A、#A/bIt is any in B, B
It is a kind of；Two groups described of big word musical alphabet selection selected from A,#A/bAny one in B, B；The musical alphabet choosing of five groups described of small character
Select selected from C.
Two groups described of big word includes 2 white keys, 1 black key since the double bass of the left side on fingerboard, from it is low to
High musical alphabet corresponding respectively be A,#A/bB、B；One group described of big word is white including 7 on the right of big two groups of word on fingerboard
5 black keys of key, from it is low to the corresponding respectively musical alphabet of height be C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、A、#A/bB、B；Institute
The big word group stated includes 7 white keys, 5 black keys on the right of big one group of word on fingerboard, from low to the corresponding musical alphabet of high difference
Be C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、A、#A/bB、B；Described small character group includes big word group on fingerboard
7 white keys, 5 black keys on the right, from it is low to the corresponding respectively musical alphabet of height be C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、
A、#A/bB、B；One group described of small character includes 7 white keys, 5 black keys on the right of small character group on fingerboard, from low to high score
Not corresponding musical alphabet be C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、A、#A/bB、B；Two groups described of small character is in piano key
Include 7 white keys, 5 black keys on the right of one group of small character on disk, from it is low to the corresponding respectively musical alphabet of height be C,#C/bD、D、#D/bE、
E、F、#F/bG、G、#G/bA、A、#A/bB、B；Three groups described of small character includes 7 white keys on the right of two groups of small character on fingerboard
5 black keys, from it is low to the corresponding respectively musical alphabet of height be C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、A、#A/bB、B；It is described
Four groups of small character include 7 white keys, 5 black keys on the right of three groups of small character on fingerboard, from low to height corresponding musical alphabet respectively
Be C,#C/bD、D、#D/bE、E、F、#F/bG、G、#G/bA、A、#A/bB、B；Five groups described of small character includes small character on fingerboard
1 white key (i.e. rightmost descant) on the right of in the of four groups, corresponding musical alphabet is C.
Further, the tuning selecting sequence that described tuning selecting unit is used is followed successively by the first tuning group, the second tune
Sound group, the 3rd tuning group, the 4th tuning group or the first tuning group, the 3rd tuning group, the second tuning group, the 4th tuning group, it is described
The first tuning group include one group of A of middle register small character, it is small that the tuning selecting sequence of the second described tuning group is followed successively by middle register
Two groups of A of word, three groups of A of treble small character, four groups of A of treble small character, the tuning selecting sequence of the 3rd described tuning group are followed successively by
Middle register small character group A, the big word group A in bass area, bass area one group of A of big word, bass area two groups of A of big word, the 4th described tuning group
Include all tuning notes selection in addition to the first tuning group, the second tuning group and the 3rd tuning group.
Further, described audio collection unit is gathered using sound transducer needs the key of tuning on piano
The audio sent.
Further, described frequency analysis unit analyzes the sound with reference to the time-domain information and frequency domain information of the audio
The fundamental frequency of frequency, regard obtained fundamental frequency as actual fundamental frequency；The frequency domain information analysis institute of described frequency analysis unit combination audio
State the secondary harmonic frequency of audio.
Further, described frequency analysis unit is according to the not time domain in unisonance area and frequency domain feature, in treble, middle pitch
Area, bass area are using three kinds of different fundamental frequency identification methods.
Further, described treble fundamental frequency identification uses harmonic spike method, identifies the reality positioned at treble audio
Border fundamental frequency.
Further, described middle register fundamental frequency identification uses the method based on wavelet analysis, identifies positioned at middle register
The actual fundamental frequency of audio.
Further, described bass area fundamental frequency identification is identified positioned at low using the auto-correlation algorithm of tri-level Clipping
The actual fundamental frequency of sound area audio.
Further, the initial frequency value in the accuracy in pitch curve is the standard frequency of 88 keys of piano, and the accuracy in pitch is bent
Line amending unit utilizes the frequency in the second harmonic frequency amendment accuracy in pitch curve after tuner according to tuning order, obtains being used for school
The tuner standard of sound.
Further, the accuracy in pitch curve amendment unit selects to use accuracy in pitch curve for the sound of the first tuning group for tuning
In initial frequency value be used as tuner standard.
The correcting mode and tuner standard of frequency are as described below in the accuracy in pitch curve：
In the accuracy in pitch curve the first tuning group be one group of A of middle register small character frequency values using initial frequency value it is constant,
Tuner is carried out as tuner standard.
The frequency correcting mode and tuner standard of the second each sound of tuning group are in the accuracy in pitch curve：
Corresponded in the second harmonic frequency amendment accuracy in pitch curve for using the first tuning group after tuner being one group of A of middle register small character
Next pitch is first sound of the second tuning group (two groups of A of middle register small character) frequency, as first sound of the second tuning group (in
Two groups of A of sound area small character) tuner standard；Utilize the secondary of first sound of the second tuning group after tuner (two groups of A of middle register small character)
The next pitch of correspondence is second sound of the second tuning group (three groups of A of middle register small character) frequency in harmonic frequency amendment accuracy in pitch curve
Rate, is used as second sound of the second tuning group (three groups of A of middle register small character) tuner standard；Utilize the second tuning group second after tuner
The next pitch of correspondence is the second tuning group the 3rd in the second harmonic frequency amendment accuracy in pitch curve of individual sound (three groups of A of middle register small character)
The frequency of individual sound (four groups of A of middle register small character), is used as the 3rd sound of the second tuning group (four groups of A of middle register small character) tuner mark
It is accurate.
The frequency correcting mode and tuner standard of the 3rd each sound of tuning group are in the accuracy in pitch curve：
The frequency correcting mode and tuner standard of 3rd tuning group, first sound (middle register small character group A) be：By
The second harmonic frequency of three sounds of tuning group first (middle register small character group A) and the first tuning group (middle pitch in the accuracy in pitch curve
One group of A of area's small character) initial frequency value be compared, when the two is consistent, with first sound (middle register small character of the 3rd tuning group
Group A) fundamental frequency amendment accuracy in pitch curve, be used as first sound of the 3rd tuning group (middle register small character group A) tuner standard；
The frequency correcting mode and tuner standard of 3rd tuning group, second sound (the big word group A in bass area) be：By
Second harmonic frequency next pitch corresponding with the accuracy in pitch curve of three sounds of tuning group second (the big word group A in bass area) is
The frequency values of three sounds of tuning group first (middle register small character group A) are compared, when the two is consistent, with the 3rd tuning group second
The fundamental frequency amendment accuracy in pitch curve of individual sound (the big word group A in bass area), is used as second sound of the 3rd tuning group (the big word group A in bass area)
Tuner standard；
The frequency correcting mode and tuner standard of the 3rd sound of 3rd tuning group (bass area one group of A of big word) be：Will
Second harmonic frequency next pitch corresponding with the accuracy in pitch curve of 3rd sound of tuning group the 3rd (bass area one group of A of big word)
That is the frequency values of second sound of the 3rd tuning group (the big word group A in bass area) are compared, when the two is consistent, with the 3rd tuning group
The fundamental frequency amendment accuracy in pitch curve of 3rd sound (bass area one group of A of big word), is used as the 3rd sound (big word in bass area of the 3rd tuning group
One group of A) tuner standard；
The frequency correcting mode and tuner standard of the 4th sound of 3rd tuning group (bass area two groups of A of big word) be：Will
Second harmonic frequency next pitch corresponding with the accuracy in pitch curve of 3rd sound of tuning group the 4th (bass area two groups of A of big word)
That is the frequency values of the 3rd sound of the 3rd tuning group (bass area one group of A of big word) are compared, when the two is consistent, with the 3rd tuning
The fundamental frequency amendment accuracy in pitch curve of the 4th sound (bass area two groups of A of big word) of group, as the 4th sound of the 3rd tuning group, (bass area is big
Two groups of A of word) tuner standard.
The frequency correcting mode and tuner standard of the 4th each sound of tuning group are in the accuracy in pitch curve：
It is flat according to 12 according to the first tuning group, the second tuning group, the 3rd revised frequency of tuning group in accuracy in pitch curve
The mode restrained is calculated, and the frequency of the 4th each sound of tuning group, is used as the 4th each sound of tuning group in amendment accuracy in pitch curve
Tuner standard.
Further, the actual fundamental frequency of the audio and tuner standard are compared by described frequency contrast unit, meter
The departure of the actual fundamental frequency of the audio signal and tuner standard is calculated, and tuning suggestion is provided according to departure.
Further, the departure carries symbol, and on the occasion of representing higher, negative value represents relatively low, the list of the departure
Position is cent.
Further, described departure is just, then tuning suggestion is adjusts pine, and described departure is negative, then tuning is built
Discuss to tighten.
Further, the mode that the result output unit is shown and reported to tuner testing result is selected from Dynamic Graph
Picture, static text, voice broadcast any one or it is any a variety of.
Further, the first identifier of the dynamic image is fixed as center, represents the tuner of the audio signal
Standard, the second identifier of dynamic image represents the actual fundamental frequency of the audio signal, according to actual frequency and tuner standard
Departure is dynamically moved, and the direction of motion of second identifier represents the partially high/low and tuning direction of actual frequency, described
The motion speed and move distance of second identifier represent the order of magnitude of departure.
Further, described static text shows tuner standard, actual fundamental frequency, departure and the tune of the audio signal
Sound is advised.
Further, described voice broadcast reports tuner standard, the reality of the audio signal by the way of voice
Fundamental frequency, departure and tuning suggestion, and when the departure of actual fundamental frequency and tuner standard is it is determined that send voice when in scope
Prompting.
The present invention also provides a kind of tuning device, and described tuning device includes the piano of any form as previously described
Self-service tuning system and any one tuning specific purpose tool.Described tuning specific purpose tool refers to the work for being operated on piano
Tool, including the instrument for opening qin, twisting bolt, adjustment string etc., only such as spanners for attuning, tablet, size bottle opener.
Second object of the present invention is to provide a kind of self-service tuning method of piano, and the self-service tuning method of described piano is adopted
With tuner standard of the frequency values in the piano accuracy in pitch curve corrected automatically by harmonic frequency as each sound, with high pitch
The actual fundamental frequency that area, middle register, bass area are calculated using algorithms of different is contrasted, and provides tuning suggestion, described piano is certainly
Tuning method is helped to comprise the following steps：
(1) note of tuning to be carried out by the selection of tuning selecting unit；
(2) audio that piano is sent, incoming frequency analytic unit are gathered using audio collection unit；
(3) the harmonious voice frequency of actual fundamental frequency for analyzing the audio using frequency analysis unit, and by the actual fundamental frequency
Harmonious voice frequency inputs accuracy in pitch curve amendment unit；
(4) the harmonious voice frequency amendment accuracy in pitch of actual fundamental frequency that accuracy in pitch curve amendment unit is provided according to frequency analysis unit is bent
Line, will correspond to the frequency of the selection tuning note as the tuner standard of the audio in revised accuracy in pitch curve；
(5) described actual fundamental frequency is contrasted and calculated with described tuner standard by frequency contrast unit, and
Tuning suggestion is provided according to result of calculation；
(6) tuner testing result is exported by result output unit and tuning is advised.
Further, the self-service tuning method of described piano still further comprises standard pronunciation and plays step, leads in tuning
The audio file of 88 piano single-tones of playing standard sound broadcast unit storage is crossed, pitch contrast auxiliary tuning, the sound is carried out
The pitch of frequency meets accuracy in pitch curve and tone color natural harmony.
The beneficial effects of the invention are as follows：
1. the present invention for prior art using theoretical pitch be standard frequency as tuner standard, the sound tone color life recalled
Firmly, U.S. of natural harmony is lacked, the problem of not meeting the higher bass of piano high pitch relatively low horizontal anti-S types accuracy in pitch curve, the present invention
Using the tuner standard progress tuner for meeting piano accuracy in pitch curve, the sound not only accuracy in pitch, and tone color natural harmony recalled with this,
Meet the relatively low horizontal anti-S types accuracy in pitch curve of the higher bass of piano high pitch.
2. the present invention is used with the accuracy in pitch curve for determining fixed value for prior art, it is impossible to according to each frame piano
Different characteristics is applicable different accuracy in pitch curves, and accuracy in pitch curve can not need what the piano of tuning corrected automatically to ask according to each frame
Topic, present invention employs the piano accuracy in pitch curve corrected automatically according to harmonic frequency while tuner, according to tuning
Piano is different, and the accuracy in pitch curve makes different amendments, regard the frequency values in described accuracy in pitch curve as the school of each sound
Phonetic symbol standard carries out tuner, and the accuracy in pitch after tuner meets the accuracy in pitch curve of this piano.
3. the present invention is inaccurate for prior art tuning, especially treble and bass area tuner result does not possess reference
The problem of, the present invention is contrasted in the actual fundamental frequency that treble, middle register, bass area are calculated using algorithms of different, is obtained
The actual fundamental frequency of each sound of piano is more accurate, and tuner result is more accurate.
Brief description of the drawings
Fig. 1 is the composition frame chart of the self-service tuning system of piano of the present invention；
Fig. 2 is that large deviations of embodiment of the present invention value calculates the corresponding sequence number diagram of 88 sounds.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, with reference to specific embodiment specifically
The bright present invention.Specific embodiment is described below to simplify the present invention.It should be recognized that the present invention be not limited to it is illustrated
Embodiment, and on the premise of general principle is not departed from, various modifications of the invention are possible, and these equivalent form of values are same
Sample falls within the application appended claims limited range.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The present invention can be presented in a variety of manners, some of examples explained below.
Fig. 1 is the composition frame chart of the self-service tuning system of piano of the present invention.Described piano automatic tuning system includes tuning
Selecting unit 101, audio collection unit 102, frequency analysis unit 103, accuracy in pitch curve amendment unit 104, frequency contrast unit
105th, result output unit 106.
Embodiment
User using the present invention piano automatic tuning system carry out piano automatic tuning when, user need carry out with
Lower operation：
Step one：According to tuning selecting sequence, selection will carry out the note of tuning in the tuning selecting unit of the present invention.
Step 2：The corresponding key of note of tuning to be carried out is played on the piano for need tuning, audio collection is utilized
The audio that unit collection piano is sent.
Step 3：Start tuner detection, the tuner testing result and tuning suggestion that system according to the invention is provided are adjusted
Sound.
In the present embodiment, the sound area selection selected first in tuning selecting unit is middle register, and sound group selection is small character
One group, musical alphabet selection is A, presses corresponding left side double bass on piano and plays the 49th key, steel is gathered using audio collection unit
The audio that qin is sent.
Meanwhile, piano automatic tuning system of the invention is proceeded as follows：
Step one：Tuning selecting unit provides the user with the selection of sound area, sound group selection, the musical alphabet selection of selection tuning, and
The sound area selection information transmission that user is selected is to frequency analysis unit, the selection of sound area, sound group selection, musical alphabet selection information transmission
Give accuracy in pitch curve amendment unit.
Step 2：The audio that audio collection unit collection piano is sent, and the audio signal incoming frequency collected is divided
Analyse unit.
Step 3：The harmonious voice frequency of the actual fundamental frequency of audio described in audio analysis element analysis, and by the actual fundamental frequency
Harmonious voice frequency inputs accuracy in pitch curve amendment unit.
The sound area selection of the present embodiment is middle register, and audio analysis unit analyzes the audio using the method for wavelet analysis
Actual fundamental frequency, obtained actual fundamental frequency is 441.36Hz, and calculating obtains second harmonic frequency for 882.72Hz.
Step 4：The harmonious voice frequency amendment sound of actual fundamental frequency that accuracy in pitch curve amendment unit is provided according to frequency analysis unit
Directrix curve, will correspond to the frequency of the selection tuning note as the tuner standard of the audio in revised accuracy in pitch curve.
The selection of the present embodiment middle register is middle register, and sound group selection is one group of small character, and musical alphabet selection is A, i.e. the first tuning
Group, sound uses the initial frequency value in accuracy in pitch curve to be used as tuner standard (i.e. 440Hz).
When tuner is accurate rear (when actual fundamental frequency and tuner frequency are unanimously or deviation is less than 0.005 cent), the first tuning is used
The frequency of the next pitch (i.e. first sound of the second tuning group) of correspondence in the second harmonic frequency amendment accuracy in pitch curve of group, under
The tuner standard of one pitch (i.e. first sound of the second tuning group).
Step 5：Described actual fundamental frequency is contrasted and calculated with described tuner standard by frequency contrast unit, and
Tuning suggestion is provided according to result of calculation.
Actual fundamental frequency in the present embodiment is 441.36Hz, and tuner standard is 440Hz, and frequency contrast unit, which is calculated, obtains frequency
Rate difference is+1.36Hz, and deviation is+0.02 cent.The calculation formula of deviation is as follows：
Wherein, x is actual fundamental frequency, and y is tuner standard, and n is the corresponding sequence number of 88 sounds of piano, since the double bass of the left side
It is 88 to the right descant for 1.
The corresponding sequence number table of specific 88 sounds is as shown in Figure 2.In figure, big/lowercase letter is big/small character group, after letter
Numeral represent big/several groups of small character.For example, A2Represent big word two groups of A, a1Represent that small character one group of A, b represent small character group B, g3Represent
Small character three groups of G, #d1Represent 1 group of small character#D(#D withbE represents same musical alphabet, is represented in the claim and specification of the present invention
For#D/bE)。
According to result of calculation, provide tuning suggestion to adjust pine.
Step 6：As a result output unit output tuner testing result and tuning suggestion.
The mode that the present embodiment result output unit is used is static text and voice broadcast.So far a tuner is completed.
After the first tuning group tuner testing result shows that tuner is accurate, the present embodiment enters to first sound of the second tuning group
Row tuner.Step is consistent with the tuner step of the first tuning group.
Then according to second sound of the second tuning group, the second sound of tuning group the 3rd, the 3rd sound of tuning group first, the 3rd
Second sound of tuning group, the 3rd sound of tuning group the 3rd, the 3rd sound of tuning group the 4th, the order of the 4th tuning group carries out school
Sound, the tuning group of the present embodiment the 4th is small according to one group of middle register small character, two groups of middle register small character, middle register small character group, treble
Three groups of word, four groups of treble small character, five groups of treble small character, the big word group in bass area, the order of one group of the big word in bass area carry out school
(each sound group of middle register and treble order from low to high carries out tuner to sound, the order of the sound group of bass area from high to low
Carry out tuner).
The correcting mode and tuner standard of frequency are as described below in the accuracy in pitch curve：
In the accuracy in pitch curve the first tuning group be one group of A of middle register small character frequency values using initial frequency value it is constant,
Tuner is carried out as tuner standard.
The frequency correcting mode and tuner standard of the second each sound of tuning group are in the accuracy in pitch curve：
Corresponded in the second harmonic frequency amendment accuracy in pitch curve for using the first tuning group after tuner being one group of A of middle register small character
Next pitch is first sound of the second tuning group (two groups of A of middle register small character) frequency, as first sound of the second tuning group (in
Two groups of A of sound area small character) tuner standard；Utilize the secondary of first sound of the second tuning group after tuner (two groups of A of middle register small character)
The next pitch of correspondence is second sound of the second tuning group (three groups of A of middle register small character) frequency in harmonic frequency amendment accuracy in pitch curve
Rate, is used as second sound of the second tuning group (three groups of A of middle register small character) tuner standard；Utilize the second tuning group second after tuner
The next pitch of correspondence is the second tuning group the 3rd in the second harmonic frequency amendment accuracy in pitch curve of individual sound (three groups of A of middle register small character)
The frequency of individual sound (four groups of A of middle register small character), is used as the 3rd sound of the second tuning group (four groups of A of middle register small character) tuner mark
It is accurate.
The frequency correcting mode and tuner standard of the 3rd each sound of tuning group are in the accuracy in pitch curve：
The frequency correcting mode and tuner standard of 3rd tuning group, first sound (middle register small character group A) be：By
The second harmonic frequency of three sounds of tuning group first (middle register small character group A) and the first tuning group (middle pitch in the accuracy in pitch curve
One group of A of area's small character) initial frequency value be compared, when the two is consistent, with first sound (middle register small character of the 3rd tuning group
Group A) fundamental frequency amendment accuracy in pitch curve, be used as first sound of the 3rd tuning group (middle register small character group A) tuner standard；
The frequency correcting mode and tuner standard of 3rd tuning group, second sound (the big word group A in bass area) be：By
Second harmonic frequency next pitch corresponding with the accuracy in pitch curve of three sounds of tuning group second (the big word group A in bass area) is
The frequency values of three sounds of tuning group first (middle register small character group A) are compared, when the two is consistent, with the 3rd tuning group second
The fundamental frequency amendment accuracy in pitch curve of individual sound (the big word group A in bass area), is used as second sound of the 3rd tuning group (the big word group A in bass area)
Tuner standard；
The frequency correcting mode and tuner standard of the 3rd sound of 3rd tuning group (bass area one group of A of big word) be：Will
Second harmonic frequency next pitch corresponding with the accuracy in pitch curve of 3rd sound of tuning group the 3rd (bass area one group of A of big word)
That is the frequency values of second sound of the 3rd tuning group (the big word group A in bass area) are compared, when the two is consistent, with the 3rd tuning group
The fundamental frequency amendment accuracy in pitch curve of 3rd sound (bass area one group of A of big word), is used as the 3rd sound (big word in bass area of the 3rd tuning group
One group of A) tuner standard；
The frequency correcting mode and tuner standard of the 4th sound of 3rd tuning group (bass area two groups of A of big word) be：Will
Second harmonic frequency next pitch corresponding with the accuracy in pitch curve of 3rd sound of tuning group the 4th (bass area two groups of A of big word)
That is the frequency values of the 3rd sound of the 3rd tuning group (bass area one group of A of big word) are compared, when the two is consistent, with the 3rd tuning
The fundamental frequency amendment accuracy in pitch curve of the 4th sound (bass area two groups of A of big word) of group, as the 4th sound of the 3rd tuning group, (bass area is big
Two groups of A of word) tuner standard.
The frequency correcting mode and tuner standard of the 4th each sound of tuning group are in the accuracy in pitch curve：
It is flat according to 12 according to the first tuning group, the second tuning group, the 3rd revised frequency of tuning group in accuracy in pitch curve
The mode restrained is calculated, and the frequency of the 4th each sound of tuning group, is used as the 4th each sound of tuning group in amendment accuracy in pitch curve
Tuner standard.
Claims (10)
1. a kind of self-service tuning system of piano, it is characterised in that the self-service tuning system of described piano uses to be entered by harmonic frequency
Frequency values in the piano accuracy in pitch curve corrected automatically of row as each sound tuner standard, with treble, middle register, bass area
The actual fundamental frequency calculated using algorithms of different is contrasted, and provides tuning suggestion, and the self-service tuning system of described piano includes adjusting
Sound selecting unit, audio collection unit, frequency analysis unit, accuracy in pitch curve amendment unit, frequency contrast unit and result output
Unit, wherein：
Described tuning selecting unit is used to select to carry out the note of tuning；Described audio collection unit is used to gather piano
The audio sent, incoming frequency analytic unit；The actual fundamental frequency that described frequency analysis unit is used to analyze the audio is harmonious
Voice frequency, and the harmonious voice frequency of the actual fundamental frequency is inputted into accuracy in pitch curve amendment unit；Described accuracy in pitch curve amendment unit
The harmonious voice frequency amendment accuracy in pitch curve of actual fundamental frequency for being provided according to frequency analysis unit, by revised accuracy in pitch curve
The correspondence frequency for selecting tuning note is as the tuner standard of the audio；Described frequency contrast unit is used for will be described
The harmonious voice frequency of actual fundamental frequency contrasted and calculated with described tuner standard, and tuning provided according to result of calculation built
View；Described result output unit is used to export tuner testing result and tuning suggestion.
2. the self-service tuning system of piano as claimed in claim 1, it is characterised in that the self-service tuning system of described piano also enters
One step includes standard pronunciation broadcast unit, and described standard pronunciation broadcast unit stores the audio file of 88 piano single-tones, is adjusting
The tone color is played during sound and carries out pitch contrast auxiliary tuning, the pitch of the audio meet accuracy in pitch curve and tone color naturally and
It is humorous.
3. the self-service tuning system of piano as claimed in claim 1 or 2, it is characterised in that described tuning selecting unit is used for
The selection of sound area, sound group selection, musical alphabet selection, the selecting sequence of the tuning selecting unit be followed successively by the selection of sound area, sound group selection,
Musical alphabet is selected.
4. the self-service tuning system of piano as claimed in claim 3, it is characterised in that described sound area selection selected from bass area,
Any one in middle register, treble.
5. the self-service tuning system of piano as claimed in claim 4, it is characterised in that the sound group selection of the bass area is selected from big
Any one in two groups of word, one group of big word, big word group, the sound group selection of the middle register is selected from small character group, one group of small character, small
Any one in two groups of word, the sound group selection of the treble is any in three groups of small character, four groups of small character, five groups of small character
It is a kind of.
6. the self-service tuning system of piano as claimed in claim 3, it is characterised in that the musical alphabet selection selected from C,#C/bD、D、#
D/bE、E、F、#F/bG、G、#G/bA、A、#A/bAny one in B, B, described musical alphabet corresponds to roll call do, rises do/ drops respectively
Re, re, liter re/ drop mi, mi, fa, liter fa/ drops sol, sol, liter sol/ and drop la, la, liter la/ and drop si, si.
7. the self-service tuning system of piano as claimed in claim 5, it is characterised in that described one group of big word, big word group, small character
Four groups of group, one group of small character, two groups of small character, three groups of small character and small character, each sound group musical alphabet selection selected from C,#C/bD、D、#D/bE、
E、F、#F/bG、G、#G/bA、A、#A/bAny one in B, B；Two groups described of big word musical alphabet selection selected from A,#A/bIn B, B
Any one；The musical alphabet selection of five groups described of small character is selected from C.
8. the self-service tuning system of piano as described in claim any one of 1-7, it is characterised in that described tuning selecting unit
The tuning selecting sequence of use is followed successively by the first tuning group, the second tuning group, the 3rd tuning group, the 4th tuning group or the first tuning
Group, the 3rd tuning group, the second tuning group, the 4th tuning group, the first described tuning group include one group of A of middle register small character, described
The tuning selecting sequence of the second tuning group be followed successively by two groups of A of middle register small character, three groups of A of treble small character, treble small character four
Group A, it is big that the tuning selecting sequence of the 3rd described tuning group is followed successively by middle register small character group A, the big word group A in bass area, bass area
One group of A of word, bass area two groups of A of big word, the 4th described tuning group, which is included, removes the first tuning group, the second tuning group and the 3rd tuning
All tuning notes selection beyond group.
9. the self-service tuning system of piano as described in claim any one of 1-8, it is characterised in that described audio collection unit
Gathered using sound transducer needs the audio that the key of tuning is sent on piano.
10. the self-service tuning system of piano as described in claim any one of 1-9, it is characterised in that described frequency analysis list
Member analyzes the fundamental frequency of the audio with reference to the time-domain information and frequency domain information of the audio, regard obtained fundamental frequency as actual base
Frequently；The frequency domain information of described frequency analysis unit combination audio analyzes the secondary harmonic frequency of the audio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610631680.6A CN107146597B (en) | 2016-08-02 | 2016-08-02 | A kind of self-service tuning system of piano and tuning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610631680.6A CN107146597B (en) | 2016-08-02 | 2016-08-02 | A kind of self-service tuning system of piano and tuning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107146597A true CN107146597A (en) | 2017-09-08 |
| CN107146597B CN107146597B (en) | 2018-07-20 |
Family
ID=59783142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610631680.6A Active CN107146597B (en) | 2016-08-02 | 2016-08-02 | A kind of self-service tuning system of piano and tuning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107146597B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364528A (en) * | 2018-04-17 | 2018-08-03 | 南通理工学院 | Piano playing note correction system and method |
| CN108877743A (en) * | 2018-04-23 | 2018-11-23 | 南阳理工学院 | A kind of piano musical note calibrating installation and application method based on sound string vibration signal |
| CN109741658A (en) * | 2019-03-20 | 2019-05-10 | 任磊 | A kind of Multi-function electronic music instrument tutoring system for music teaching |
| CN110444226A (en) * | 2019-08-14 | 2019-11-12 | 山东浪潮人工智能研究院有限公司 | A kind of long-range tuning diagnostic method of piano based on deep learning and system |
| CN113781981A (en) * | 2021-09-07 | 2021-12-10 | 北京星海钢琴集团有限公司 | Piano sound-dialing auxiliary system and sound-dialing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892811A (en) * | 2005-07-04 | 2007-01-10 | 雅马哈株式会社 | Tuning device for musical instruments and computer program used therein |
| CN1953042A (en) * | 2005-10-19 | 2007-04-25 | 雅马哈株式会社 | Tuning device for musical instruments and computer program for visualizing tuning status |
| JP2008282056A (en) * | 2008-08-25 | 2008-11-20 | Kawai Musical Instr Mfg Co Ltd | Device and method for correcting tune of electronic musical instrument, computer program, and recording medium |
| CN101789237A (en) * | 2009-12-18 | 2010-07-28 | 王宏伟 | Violin table tone setting and case assembling tone tuning method and special device |
-
2016
- 2016-08-02 CN CN201610631680.6A patent/CN107146597B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892811A (en) * | 2005-07-04 | 2007-01-10 | 雅马哈株式会社 | Tuning device for musical instruments and computer program used therein |
| CN1953042A (en) * | 2005-10-19 | 2007-04-25 | 雅马哈株式会社 | Tuning device for musical instruments and computer program for visualizing tuning status |
| JP2008282056A (en) * | 2008-08-25 | 2008-11-20 | Kawai Musical Instr Mfg Co Ltd | Device and method for correcting tune of electronic musical instrument, computer program, and recording medium |
| CN101789237A (en) * | 2009-12-18 | 2010-07-28 | 王宏伟 | Violin table tone setting and case assembling tone tuning method and special device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364528A (en) * | 2018-04-17 | 2018-08-03 | 南通理工学院 | Piano playing note correction system and method |
| CN108877743A (en) * | 2018-04-23 | 2018-11-23 | 南阳理工学院 | A kind of piano musical note calibrating installation and application method based on sound string vibration signal |
| CN108877743B (en) * | 2018-04-23 | 2023-01-10 | 南阳理工学院 | Piano temperament calibration device based on string vibration signals and use method |
| CN109741658A (en) * | 2019-03-20 | 2019-05-10 | 任磊 | A kind of Multi-function electronic music instrument tutoring system for music teaching |
| CN110444226A (en) * | 2019-08-14 | 2019-11-12 | 山东浪潮人工智能研究院有限公司 | A kind of long-range tuning diagnostic method of piano based on deep learning and system |
| CN113781981A (en) * | 2021-09-07 | 2021-12-10 | 北京星海钢琴集团有限公司 | Piano sound-dialing auxiliary system and sound-dialing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107146597B (en) | 2018-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180342228A1 (en) | Digital sight-singing piano with a fixed-solfège keyboard, continuous keys and adjustable tones by kneading piano keys | |
| CN107146597B (en) | A kind of self-service tuning system of piano and tuning method | |
| US20160042657A1 (en) | Systems and methods for quantifying a sound into dynamic pitch-based graphs | |
| CN110010106A (en) | A kind of musical performance is set the chessman on the chessboard according to the chess manual system automatically | |
| CN205541916U (en) | Intelligence piano system with suggestion location of key and recording function of grading | |
| CN205541911U (en) | Internet intelligence piano system that can grade | |
| Winnington-Ingram | The Pentatonic Tuning of the Greek Lyre: A Theory Examined 1 | |
| CN111798814A (en) | Self-service tuning system of piano | |
| TW201719628A (en) | Music score production method with fingering marks and system for the same allowing a player to perform by referring to fingering marks | |
| CN101625851B (en) | Method for displaying spectrum curve of music to be tested and equipment thereof | |
| KR20010082407A (en) | Song accompaniment method to induce pitch correction. | |
| Borup | A history of string intonation | |
| JP2008242131A (en) | Capability evaluation system and capability evaluation program | |
| JP5807754B2 (en) | Stringed instrument performance evaluation apparatus and stringed instrument performance evaluation program | |
| Curry | The Philosophy of Musical Instruments | |
| Johnston | Proportionality and Expanded Musical Pitch Relations | |
| Breitman | The damper pedal and the Beethoven piano sonatas: a historical perspective | |
| Storm | Wolfgang von Schweinitz's" Plainsound Brass Trio" in Theory and Practice: A Guide for Performers | |
| Barcan | Tessitura changes in music theatre repertoire for the soprano voice | |
| Peng et al. | The Historical Causes of Modern Horn Transposition Playing | |
| Conrad | GC Insights: Communicating Climate Change–Immersive Sonification for the Piano | |
| KR100444930B1 (en) | Apparatus and method for extracting quantized MIDI note | |
| Levitan | The craft of piano tuning | |
| Razali et al. | Intercultural Creativity and Exploration through Gamelanistic Elements in Marzelan Salleh’s Puteri Gunung Ledang and John Cage’s Dream | |
| Wylde | Harmony and the science of music: complete in one volume |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |