CN104505071A - Signal processing method of electronic musical instrument - Google Patents
Signal processing method of electronic musical instrument Download PDFInfo
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- CN104505071A CN104505071A CN201410780154.7A CN201410780154A CN104505071A CN 104505071 A CN104505071 A CN 104505071A CN 201410780154 A CN201410780154 A CN 201410780154A CN 104505071 A CN104505071 A CN 104505071A
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Abstract
The invention discloses a signal processing method of an electronic musical instrument. The method relates to an audio collection unit, a signal conversion unit, a filtering unit and an output unit. The signal processing method comprises the following steps of firstly collecting all harmonic tones of the to-be-detected musical instrument, and respectively converting all the harmonic tones into time-domain characteristics, spectral characteristics and standard tone frequency of the to-be-detected musical instrument through a calculation conversion unit; then comparing standard tone with all the collected harmonic tones of the to-be-detected musical instrument, and outputting. The audio collection unit comprises a collecting terminal which is used for collecting sound of the musical instrument; the output end of the audio collection unit is connected with the signal conversion unit; the signal conversion unit is used for converting audio signals into analog signals; the filtering unit is positioned between the signal conversion unit and the output unit, and is used for filtering the analog signals; the output unit is used for playing the filtered analog signals. The signal processing method for the electronic musical instrument has the advantages of convenience in use, intuition and accuracy, and can be applied to sound setting devices, tuners and metronomes of all kinds of musical instruments.
Description
Technical field
The present invention relates to filter field, specifically, be related specifically to a kind of signal processing method of electronic musical instrument.
Background technology
Chinese musical instruments manufacturing has basically formed comparatively complete industrial production system, substantially all large kind musical instruments in the world can be processed, covering extensive fields, kind is numerous, different classes of more than 1200 models such as nearly piano, violin, western wind instrument, specification more than 30,000, the large kind musical instrument such as piano.Its product has formed Virtual production general layout, and the main piano parts specialty such as piano iron plate, soundboard, hammered string instrument, shell processing factory starts to form scale.
Summary of the invention
The object of the invention is to for deficiency of the prior art, provide a kind of signal processing method of electronic musical instrument, to solve the problem.
Technical matters solved by the invention can realize by the following technical solutions:
The signal processing method of electronic musical instrument, comprises audio collection unit, signal conversion unit, filter unit and output unit; First gather each humorous Boeing of musical instrument to be detected, and each humorous Boeing is converted to the time domain specification of musical instrument to be detected, spectral characteristic and standard pronunciation frequency respectively by calculating converting unit; Then each humorous Boeing of standard pronunciation with the musical instrument to be detected collected is compared, and export; Described audio collection unit has collection terminal, for gathering the sound of musical instrument, the output terminal connection signal converting unit of audio collection unit, described signal conversion unit is used for sound signal to be converted to simulating signal, described filter unit, between signal conversion unit and output unit, is play by output unit after filtering simulating signal again.
Preferably, described output unit has loudspeaker horn, and described loudspeaker horn is connected with portable power source.
Preferably, described audio collection unit unit is installed on sound source side by connection bracket.
Compared with prior art, beneficial effect of the present invention is as follows:
The present invention has easy to use, intuitively accurate, can be used for the pitching instrument of various musical instrument, organ stop, metronome etc.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
Embodiment 1
The signal processing method of electronic musical instrument, comprises audio collection unit, signal conversion unit, filter unit and output unit; First gather each humorous Boeing of musical instrument to be detected, and each humorous Boeing is converted to the time domain specification of musical instrument to be detected, spectral characteristic and standard pronunciation frequency respectively by calculating converting unit; Then each humorous Boeing of standard pronunciation with the musical instrument to be detected collected is compared, and export.
Described audio collection unit has collection terminal, for gathering the sound of musical instrument, the output terminal connection signal converting unit of audio collection unit, described signal conversion unit is used for sound signal to be converted to simulating signal, described filter unit, between signal conversion unit and output unit, is play by output unit after filtering simulating signal again.
Described output unit has loudspeaker horn, and described loudspeaker horn is connected with portable power source.
Described audio collection unit unit is installed on sound source side by connection bracket.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. the signal processing method of electronic musical instrument, is characterized in that, comprises audio collection unit, signal conversion unit, filter unit and output unit; First gather each humorous Boeing of musical instrument to be detected, and each humorous Boeing is converted to the time domain specification of musical instrument to be detected, spectral characteristic and standard pronunciation frequency respectively by calculating converting unit; Then each humorous Boeing of standard pronunciation with the musical instrument to be detected collected is compared, and export; Described audio collection unit has collection terminal, for gathering the sound of musical instrument, the output terminal connection signal converting unit of audio collection unit, described signal conversion unit is used for sound signal to be converted to simulating signal, described filter unit, between signal conversion unit and output unit, is play by output unit after filtering simulating signal again.
2. the signal processing method of electronic musical instrument according to claim 1, is characterized in that: described output unit has loudspeaker horn, and described loudspeaker horn is connected with portable power source.
3. the signal processing method of electronic musical instrument according to claim 1, is characterized in that: described audio collection unit unit is installed on sound source side by connection bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410780154.7A CN104505071A (en) | 2014-12-17 | 2014-12-17 | Signal processing method of electronic musical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410780154.7A CN104505071A (en) | 2014-12-17 | 2014-12-17 | Signal processing method of electronic musical instrument |
Publications (1)
| Publication Number | Publication Date |
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| CN104505071A true CN104505071A (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410780154.7A Pending CN104505071A (en) | 2014-12-17 | 2014-12-17 | Signal processing method of electronic musical instrument |
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Citations (7)
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| CN2170561Y (en) * | 1993-11-09 | 1994-06-29 | 洪风石 | Computerized tone corrector |
| CN1220440A (en) * | 1997-12-18 | 1999-06-23 | 周向进 | Temperament standard generator for piano |
| CN201060636Y (en) * | 2007-07-04 | 2008-05-14 | 得理电子(上海)有限公司 | Digital effect device with effect updating function |
| CN201069642Y (en) * | 2007-08-03 | 2008-06-04 | 西北工业大学 | Electronic music device |
| US20100212475A1 (en) * | 2007-07-13 | 2010-08-26 | Anglia Ruskin University | Tuning or training device |
| CN202041281U (en) * | 2011-03-18 | 2011-11-16 | 上海第二工业大学 | Piano intonation measuring system |
| CN103077698A (en) * | 2013-01-10 | 2013-05-01 | 天津理工大学 | High-accuracy detection method for tone color of musical instrument |
-
2014
- 2014-12-17 CN CN201410780154.7A patent/CN104505071A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2170561Y (en) * | 1993-11-09 | 1994-06-29 | 洪风石 | Computerized tone corrector |
| CN1220440A (en) * | 1997-12-18 | 1999-06-23 | 周向进 | Temperament standard generator for piano |
| CN201060636Y (en) * | 2007-07-04 | 2008-05-14 | 得理电子(上海)有限公司 | Digital effect device with effect updating function |
| US20100212475A1 (en) * | 2007-07-13 | 2010-08-26 | Anglia Ruskin University | Tuning or training device |
| CN201069642Y (en) * | 2007-08-03 | 2008-06-04 | 西北工业大学 | Electronic music device |
| CN202041281U (en) * | 2011-03-18 | 2011-11-16 | 上海第二工业大学 | Piano intonation measuring system |
| CN103077698A (en) * | 2013-01-10 | 2013-05-01 | 天津理工大学 | High-accuracy detection method for tone color of musical instrument |
Non-Patent Citations (3)
| Title |
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| 严石 等: "《一种高速数据采集系统设计》", 《淮阴工学报学报》 * |
| 佘海霞: "《基于DSP的钢琴调音仪的研制》", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 唐晓倩: "《基于DSP的钢琴调音仪的研制》", 《西安航空技术高等专科学校学报》 * |
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Application publication date: 20150408 |
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