CN109599008A - Musical instrument exercising auxiliary device - Google Patents
Musical instrument exercising auxiliary device Download PDFInfo
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- CN109599008A CN109599008A CN201910106775.XA CN201910106775A CN109599008A CN 109599008 A CN109599008 A CN 109599008A CN 201910106775 A CN201910106775 A CN 201910106775A CN 109599008 A CN109599008 A CN 109599008A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 239000004973 liquid crystal related substance Substances 0.000 claims description 13
- 230000006870 function Effects 0.000 claims description 5
- 230000005236 sound signal Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B15/00—Teaching music
- G09B15/02—Boards or like means for providing an indication of notes
- G09B15/023—Electrically operated
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B15/00—Teaching music
- G09B15/02—Boards or like means for providing an indication of notes
- G09B15/04—Boards or like means for providing an indication of notes with sound emitters
Abstract
The present invention proposes that musical instrument exercising auxiliary device, the assistor include control module, data acquisition module, memory module and compare demonstration module；The data acquisition module includes pickup module and the analog-to-digital conversion module that is connected with pickup module；Storage has standard to play audio data in the memory module；The comparison demonstration module includes display module；The comparison demonstration module is connected with memory module, analog-to-digital conversion module；When assistor work, the analog-to-digital conversion module plays audio through pickup module acquisition practitioner and is converted into practice audio presentation data；Practice audio presentation data and standard are played audio data respectively and are converted to demo content by the comparison demonstration module, and display comparison is carried out at display module by the time schedule that standard plays audio；The present invention can effectively help player to adjust exercising method, promote performance level.
Description
Technical field
The present invention relates to music teaching equipment technical fields, especially musical instrument exercising auxiliary device.
Background technique
During musical instrument practice, a piece of music is showed by each of music note accuracy in pitch and duration, such as
Fruit note or beat mistake will affect practice effect, and most importantly how playing procedure judges accuracy in pitch for each player
It is correct with beat, therefore need to carry out practice auxiliary using metronome or timer during general practice.Traditional music is practiced
The beat effect of a certain fixation can only be provided by practising metronome, can not judge whether the note played and beat are accurate, especially
Beginner's musicality is poor, and auxiliaring effect is unobvious to aggravate practice burden instead.
Summary of the invention
The present invention proposes musical instrument exercising auxiliary device, and player can effectively be helped to adjust exercising method, promotes performance level.
The present invention uses following technical scheme.
Musical instrument exercising auxiliary device, the assistor include control module, data acquisition module, memory module and compare demonstration
Module；The data acquisition module includes pickup module and the analog-to-digital conversion module that is connected with pickup module；The memory module
Interior storage has standard to play audio data；The comparison demonstration module includes display module；The comparison demonstration module and storage mould
Block, analog-to-digital conversion module are connected；When assistor work, the analog-to-digital conversion module plays sound through pickup module acquisition practitioner
Frequency is simultaneously converted into practice audio presentation data；The comparison demonstration module respectively drills practice audio presentation data and standard
It plays audio data and is converted to demo content, carry out display comparison at display module by the time schedule that standard plays audio.
The comparison demonstration module further includes error prompts lamp, and when assistor work, the comparison demonstration module is calculated
Practitioner plays difference degree value and difference type between audio data and standard performance audio data, and by difference degree value
Size and movement is lighted with difference type control error prompts lamp.
The pickup module includes microphone or sound pick-up；The data acquisition module further includes being connected with pickup module
Audio processing modules；The audio that the audio processing modules acquire pickup module is sent after amplifying to analog-to-digital conversion module；
The analog-to-digital conversion module includes microprocessor；After practitioner's performance audio is switched to digital signal by the analog-to-digital conversion module,
FFT transform is carried out by microprocessor again, the signal frequency data that practitioner plays audio are precisely calculated, and signal frequency
Rate data are converted to matching practice audio presentation data；The practice audio presentation data include standard pronunciation name data,
Standard pronunciation order evidence, cent value error information and frequency duration data.
When microprocessor carries out FFT transform, audio signal frequency spectrum is first analyzed with fft algorithm, obtains sound after filtering
Frequently main frequency information.
The display module includes liquid crystal display；The demo content for comparing demonstration module is included in liquid crystal display
Locate musical alphabet, the beat, duration of display.
The memory module includes SD card；The display module includes the color LCD display that resolution ratio is 240*320.
The microprocessor of the analog-to-digital conversion module is STM32 series high-performance processor of single chip computer.
The assistor includes power supply and device housings；Liquid crystal display, loudspeaker, function is equipped at the device housings to press
Key, audio input terminal and error prompts lamp；The audio input terminal is connected with pickup module.
The error prompts lamp includes correct warning light, note type error warning light, note duration miscue lamp；When
When the difference degree value that practitioner plays between audio data and standard performance audio data is less than threshold value, correct warning light is lighted；
When practitioner, which plays the difference type between audio data and standard performance audio data, belongs to note type error, note type
Miscue lamp is lighted；Belong to note duration when practitioner plays the difference type between audio data and standard performance audio data
When mistake, note duration miscue lamp is lighted.
It is an advantage of the current invention that by providing a kind of intelligent musical instrument exercising auxiliary device easily and effectively, with existing pleasure
Device practice ancillary equipment is compared, and is more effectively acquired by microprocessor and is analyzed musical instrument sound signal, efficiently solves performance
Person can not judge current musical notes and the correct problem of beat in practice process, and practitioner can be by acousto-optic hint effectively
Adjust exercising method.
Detailed description of the invention
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Attached drawing 1 is surface structure schematic diagram of the invention；
Attached drawing 2 is principle schematic diagram of the invention；
Attached drawing 3 is partial circuit schematic diagram of the invention；
Attached drawing 4 is workflow schematic diagram of the invention；
In figure: 1- error indicator lamp；2- device housings；3- function button；4- loudspeaker；5- audio input terminal；6- liquid crystal display
Screen.
Specific embodiment
As shown in Figs 1-4, musical instrument exercising auxiliary device, the assistor include control module, data acquisition module, storage mould
Block and comparison demonstration module；The data acquisition module includes pickup module and the analog-to-digital conversion module that is connected with pickup module；
Storage has standard to play audio data in the memory module；The comparison demonstration module includes display module；The comparison demonstration
Module is connected with memory module, analog-to-digital conversion module；When assistor work, the analog-to-digital conversion module is acquired through pickup module
Practitioner plays audio and is converted into practice audio presentation data；The comparison demonstration module is respectively practice audio presentation
Data and standard play audio data and are converted to demo content, carry out at display module by the time schedule that standard plays audio
Display compares.
The comparison demonstration module further includes error prompts lamp, and when assistor work, the comparison demonstration module is calculated
Practitioner plays difference degree value and difference type between audio data and standard performance audio data, and by difference degree value
Size and movement is lighted with difference type control error prompts lamp.
The pickup module includes microphone or sound pick-up；The data acquisition module further includes being connected with pickup module
Audio processing modules；The audio that the audio processing modules acquire pickup module is sent after amplifying to analog-to-digital conversion module；
The analog-to-digital conversion module includes microprocessor；After practitioner's performance audio is switched to digital signal by the analog-to-digital conversion module,
FFT transform is carried out by microprocessor again, the signal frequency data that practitioner plays audio are precisely calculated, and signal frequency
Rate data are converted to matching practice audio presentation data；The practice audio presentation data include standard pronunciation name data,
Standard pronunciation order evidence, cent value error information and frequency duration data.
When microprocessor carries out FFT transform, audio signal frequency spectrum is first analyzed with fft algorithm, obtains sound after filtering
Frequently main frequency information.
The display module includes liquid crystal display；The demo content for comparing demonstration module is included in liquid crystal display
Locate musical alphabet, the beat, duration of display.
The memory module includes SD card；The display module includes the color LCD display that resolution ratio is 240*320.
The microprocessor of the analog-to-digital conversion module is STM32 series high-performance processor of single chip computer.
The assistor includes power supply and device housings 2；Liquid crystal display 6, loudspeaker 4, function are equipped at the device housings
It can key 3, audio input terminal 5 and error prompts lamp 1；The audio input terminal is connected with pickup module.
The error prompts lamp includes correct warning light, note type error warning light, note duration miscue lamp；When
When the difference degree value that practitioner plays between audio data and standard performance audio data is less than threshold value, correct warning light is lighted；
When practitioner, which plays the difference type between audio data and standard performance audio data, belongs to note type error, note type
Miscue lamp is lighted；Belong to note duration when practitioner plays the difference type between audio data and standard performance audio data
When mistake, note duration miscue lamp is lighted.
Embodiment:
This example product by device housings, microprocessor, liquid crystal display, function button, audio input (microphone or sound pick-up),
Loudspeaker, indicator light (red, green, three LED light of yellow), power supply, audio processing modules composition, wherein data acquisition module
STM32 series high-performance processor of single chip computer, typical chip model STM32F103VET6, liquid crystal can be used in microprocessor
Display screen uses resolution ratio for the color LCD display of 240*320.
Since the voltage signal of microphone or sound pick-up acquisition output is very faint, generally only several millivolts, therefore use
Integrated chip AD8367 amplifies processing, and amplifying circuit is as shown in figure 3, wherein VINFor microphone/sound pick-up input signal.
STM32F103VET6 is built-in with modulus (A/D) conversion circuit, and audio amplification signal quickly carries out to FFT transform, to filter out high order humorous
Wave and noise analyze the note of instrument playing.
Since in music learning, the standard melody audio data file that need to be stored as comparison sample is larger, quantity is more,
Therefore it is stored using SD card.
Compare standard music data and the note currently played letter that the processor built in demonstration module reads current exercise
Breath data are compared, using the performance progress of standard performance audio data as comparison time line, in liquid crystal display screen display
The note and duration and the two comparing result of the note, standard melody currently played, while the control green when playing errorless
LED light is bright, and control red LED indicator light is bright when note mistake, and the wrong time control manufacture-yellow color LED light of note duration is bright,
Equipment workflow is as shown in Figure 4.
Claims (9)
1. musical instrument exercising auxiliary device, it is characterised in that: the assistor includes control module, data acquisition module, memory module
With comparison demonstration module；The data acquisition module includes pickup module and the analog-to-digital conversion module that is connected with pickup module；Institute
Stating storage in memory module has standard to play audio data；The comparison demonstration module includes display module；Mould is demonstrated in the comparison
Block is connected with memory module, analog-to-digital conversion module；When assistor work, the analog-to-digital conversion module is acquired through pickup module to be practiced
Habit person plays audio and is converted into practice audio presentation data；The comparison demonstration module is respectively practice audio presentation number
Demo content is converted to according to audio data is played with standard, is shown at display module by the time schedule that standard plays audio
Show comparison.
2. musical instrument exercising auxiliary device according to claim 1, it is characterised in that: the comparison demonstration module further includes error
Warning light, when assistor work, the comparison demonstration module calculates practitioner and plays audio data and standard performance audio number
According to difference degree value and difference type, and by difference degree value size and with difference type control error prompts lamp point
Bright movement.
3. musical instrument exercising auxiliary device according to claim 1, it is characterised in that: the pickup module includes microphone or picks up
Sound device；The data acquisition module further includes the audio processing modules being connected with pickup module；The audio processing modules are to picking up
The audio of sound module acquisition is sent after amplifying to analog-to-digital conversion module；The analog-to-digital conversion module includes microprocessor；It is described
Analog-to-digital conversion module plays practitioner after audio switchs to digital signal, then carries out FFT transform by microprocessor, in terms of accurately
It calculates practitioner and plays the signal frequency data of audio, and signal frequency data are converted to matching practice audio presentation
Data；The practice audio presentation data include that standard pronunciation name data, standard pronunciation order evidence, cent value error information and frequency are held
Continuous duration data.
4. musical instrument exercising auxiliary device according to claim 3, it is characterised in that: when microprocessor carries out FFT transform, first
Audio signal frequency spectrum is analyzed with fft algorithm, obtains the main frequency information of audio after filtering.
5. musical instrument exercising auxiliary device according to claim 3, it is characterised in that: the display module includes liquid crystal display
Screen；The demo content for comparing demonstration module includes the musical alphabet shown at liquid crystal display, beat, duration.
6. musical instrument exercising auxiliary device according to claim 3, it is characterised in that: the memory module includes SD card；It is described
Display module includes the color LCD display that resolution ratio is 240*320.
7. musical instrument exercising auxiliary device according to claim 3, it is characterised in that: the microprocessor of the analog-to-digital conversion module
For STM32 series high-performance processor of single chip computer.
8. musical instrument exercising auxiliary device according to claim 3, it is characterised in that: the assistor includes outside power supply and equipment
Shell；Liquid crystal display, loudspeaker, function button, audio input terminal and error prompts lamp are equipped at the device housings；The sound
Frequency input terminal is connected with pickup module.
9. musical instrument exercising auxiliary device according to claim 2, it is characterised in that: the error prompts lamp includes correct prompt
Lamp, note type error warning light, note duration miscue lamp；When practitioner plays audio data and standard performance audio number
According to difference degree value be less than threshold value when, correct warning light is lighted；When practitioner plays audio data and standard performance audio
When difference type between data belongs to note type error, note type error warning light is lighted；When practitioner plays audio number
When belonging to note duration mistake according to the difference type between standard performance audio data, note duration miscue lamp is lighted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106775.XA CN109599008A (en) | 2019-02-02 | 2019-02-02 | Musical instrument exercising auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106775.XA CN109599008A (en) | 2019-02-02 | 2019-02-02 | Musical instrument exercising auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109599008A true CN109599008A (en) | 2019-04-09 |
Family
ID=65967174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910106775.XA Withdrawn CN109599008A (en) | 2019-02-02 | 2019-02-02 | Musical instrument exercising auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109599008A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660283A (en) * | 2019-10-12 | 2020-01-07 | 南阳师范学院 | Teaching piano and piano teaching method |
| CN111179691A (en) * | 2019-12-31 | 2020-05-19 | 苏州缪斯谈谈科技有限公司 | Note duration display method and device, electronic equipment and storage medium |
| CN111223355A (en) * | 2020-01-16 | 2020-06-02 | 深圳大学 | Musical instrument fingering correction device, system and method and musical instrument |
| CN111524417A (en) * | 2020-04-29 | 2020-08-11 | 威海海洋职业学院 | Internet-based visual listening music teaching system and teaching method |
| CN113589674A (en) * | 2021-07-29 | 2021-11-02 | 怀化市新谱乐器有限公司 | Portable multifunctional metronome |
| CN113689836A (en) * | 2021-08-12 | 2021-11-23 | 福建星网视易信息系统有限公司 | Method and terminal for converting audio frequency into musical notes and displaying same |
-
2019
- 2019-02-02 CN CN201910106775.XA patent/CN109599008A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660283A (en) * | 2019-10-12 | 2020-01-07 | 南阳师范学院 | Teaching piano and piano teaching method |
| CN111179691A (en) * | 2019-12-31 | 2020-05-19 | 苏州缪斯谈谈科技有限公司 | Note duration display method and device, electronic equipment and storage medium |
| CN111223355A (en) * | 2020-01-16 | 2020-06-02 | 深圳大学 | Musical instrument fingering correction device, system and method and musical instrument |
| CN111524417A (en) * | 2020-04-29 | 2020-08-11 | 威海海洋职业学院 | Internet-based visual listening music teaching system and teaching method |
| CN113589674A (en) * | 2021-07-29 | 2021-11-02 | 怀化市新谱乐器有限公司 | Portable multifunctional metronome |
| CN113689836A (en) * | 2021-08-12 | 2021-11-23 | 福建星网视易信息系统有限公司 | Method and terminal for converting audio frequency into musical notes and displaying same |
| CN113689836B (en) * | 2021-08-12 | 2023-08-18 | 福建星网视易信息系统有限公司 | Method and terminal for converting audio into notes and displaying notes |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190409 |
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| WW01 | Invention patent application withdrawn after publication |