WO2015131433A1 - Procédé pour accorder un tambour et dispositif d'accordage de tambour - Google Patents

Procédé pour accorder un tambour et dispositif d'accordage de tambour Download PDF

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Publication number
WO2015131433A1
WO2015131433A1 PCT/CN2014/075998 CN2014075998W WO2015131433A1 WO 2015131433 A1 WO2015131433 A1 WO 2015131433A1 CN 2014075998 W CN2014075998 W CN 2014075998W WO 2015131433 A1 WO2015131433 A1 WO 2015131433A1
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WO
WIPO (PCT)
Prior art keywords
circuit
detecting
detection
drum
sampling
Prior art date
Application number
PCT/CN2014/075998
Other languages
English (en)
Chinese (zh)
Inventor
赵哲
Original Assignee
赵哲
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 赵哲 filed Critical 赵哲
Priority to PCT/CN2014/075998 priority Critical patent/WO2015131433A1/fr
Publication of WO2015131433A1 publication Critical patent/WO2015131433A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D13/00—Percussion musical instruments; Details or accessories therefor
    • G10D13/01—General design of percussion musical instruments
    • G10D13/02—Drums; Tambourines with drumheads
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D13/00—Percussion musical instruments; Details or accessories therefor
    • G10D13/10—Details of, or accessories for, percussion musical instruments
    • G10D13/16—Tuning devices; Hoops; Lugs

Definitions

  • the present invention relates to a method for drum tuning, and to a drum tuner using the tuning method. Background technique
  • the traditional drum tuning method is performed using an electronic tuner with a microphone or a piezoelectric buzzer as a sensor.
  • the tuning principle of this tuner is: picking up the eardrum through a microphone or piezoelectric buzzer
  • the vibration sound wave converts the vibration signal of the sound wave into an electric signal, and measures the vibration frequency of the sound wave represented by the electric signal, and displays the frequency of the measurement and the reference frequency of the tympanic membrane set by the debugger for the debugger to tighten the tympanic membrane
  • the frequency is adjusted to the ideal state.
  • the sound frequency of the drum surface is measured by picking up the sound wave signal, which is susceptible to environmental interference.
  • the traditional electronic tuner picks up the sound waves of the tympanic membrane, other disturbing sound waves are also picked up by the electronic tuner. This kind of interference will greatly reduce the accuracy of the electronic tuner to measure the vibration frequency of the eardrum. In severe cases, it cannot even be detected, and the tuner cannot be used for tuning.
  • the audio signal emitted by the eardrum is usually a composite frequency, including a plurality of overtones other than the pitch, it is difficult to quickly and accurately detect the tympanic audio frequency.
  • One of the technical problems to be solved by the present invention is to provide a drum tuning method, which overcomes the defects that are easily interfered by environmental noise and affects the tuning accuracy in the method of tuning a tuner using the tympanic membrane vibration sound wave. .
  • the second technical problem to be solved by the present invention is to provide a drum tuner, which is easy to be disturbed by environmental noise by using the above-mentioned drum tuning method to overcome the existing tuning method using a tuner vibrating sound wave tuner. Defects that affect the accuracy of tuning.
  • the technical solution adopted by the present invention to solve one of the technical problems is: constructing a drum tuning method, which is characterized in that it comprises the following steps:
  • Si emitting detection light to the detected position of the vibrating tympanic membrane to be tested, and receiving the detection light reflected by the tympanic membrane to be tested; 52. Perform signal amplification, sampling detection, filtering amplification, and shaping processing on the received detection light reflection signals in sequence;
  • the detection light is infrared rays or ultraviolet rays.
  • the output tuning related information is: outputting the detected frequency and a set drum reference frequency; or outputting the set drum reference frequency and the detection frequency and the reference frequency The difference.
  • the output tuning related information is: outputting the set drum reference frequency and the proximity of the detection frequency to the reference frequency.
  • a drum tuner comprising: a housing, a signal amplifying circuit disposed in the housing, a sampling detection circuit, a band pass filter amplifier, a shaping circuit, an MCU, a driving circuit and a power source, a detecting light emitting device and a detecting light receiving device disposed on the housing, a detecting signal output device disposed on the housing or in the housing; the power source and the signal amplifying circuit respectively , a sampling detection circuit, a band pass filter amplifier, a shaping circuit, an MCU, a driving circuit, a detecting light emitting device, a detecting light receiving device, and a detecting signal output device are connected to the power supply;
  • the sampling detection circuit is a detection circuit capable of taking an envelope signal from the amplitude modulation wave
  • the detection light emitting device and the detecting light receiving device have an optical path angle greater than or equal to 0° and less than 50°; the detecting light receiving device, the signal amplifying circuit, the sampling detecting circuit, the band pass filter amplifier, the shaping circuit, the MCU, and the driving circuit Detecting light emitting devices connected in sequence;
  • the MCU is connected to the sampling detection circuit and drives the sampling detection circuit for detecting; the MCU is connected to the detection signal output device to output tuning related information; and the MCU controls the driving circuit to drive the detection light emitting device to emit detection light.
  • the sampling detection circuit includes an electronic analog switch 1, an electronic analog switch 2, an integrating capacitor 1, an integrating capacitor 2, and an operational amplifier, and the electronic analog switch 1 and the electronic analog switch 2 are respectively connected to the The positive and negative input terminals of the operational amplifier, one end of the integrating capacitor is grounded, and the other end is connected to the connection end of the electronic analog switch and the operational amplifier, and one end of the integrating capacitor The ground end and the other end are connected to the connection end of the electronic analog switch 2 and the operational amplifier; the electronic analog switch 1.
  • the input end of the electronic analog switch 2 is an input end of the sampling detection circuit
  • the output end of the operational amplifier is a sampling detection circuit Output.
  • the sampling detection circuit includes a detection diode, a detection capacitor, and a detection resistor, and a cathode of the detector diode is connected in series at a first input end of the sampling detection circuit, and the detection capacitor and the detection resistor are respectively connected
  • the negative end of the detection diode and the second input end of the sampling detection circuit, the two ends of the detection resistor are the output end of the sampling detection circuit.
  • the detecting light emitting device and the detecting light receiving device are respectively an infrared light emitting device and an infrared light receiving device, or the detecting light emitting device and the detecting light receiving device are respectively ultraviolet light emitting Device and ultraviolet light receiving device.
  • the detection signal output means is a display or a speaker.
  • the drum tuning method and the tuner tuning method embodying the present invention are compared with the prior art, and the beneficial effects thereof are as follows:
  • FIG. 1 is a flow chart showing an embodiment of the drum tuning method of the present invention.
  • FIG. 2 is a block diagram showing the structure of an embodiment of the drum tuner of the present invention.
  • FIG. 3 is a schematic diagram of the detection of the drum tuner of the present invention.
  • FIG. 4 is a circuit diagram of an embodiment of the sampling detection circuit of FIG. 2.
  • Figure 5 is a circuit diagram of another embodiment of the sample detection circuit of Figure 2.
  • the drum tuning method of the present invention comprises the following steps:
  • the detection position of the vibrating tympanic membrane i.e., the drumhead
  • the detection light reflected by the tympanic membrane is received.
  • the detection light is reflected by the vibrating tympanic membrane and then picks up the vibration signal of the tympanic membrane.
  • the detection position is usually near the tension point of the drum.
  • the received detection light reflection signal is sequentially subjected to signal amplification processing, sampling detection processing, filter amplification processing, and shaping processing to obtain an amplitude waveform of the vibration signal.
  • This frequency is the fundamental frequency of the tympanic membrane vibration.
  • the detection light of the method may be infrared rays or ultraviolet rays.
  • the output tuning related information of the method includes but is not limited to:
  • the tuner judges the tuning of the tympanic membrane corresponding to the debugging point based on the detected detection frequency and the reference frequency and performs tuning.
  • the tuner judges the tuning of the tympanic membrane corresponding to the debugging point according to the output standard frequency and the difference between the detection frequency and the reference frequency, and performs tuning.
  • the tuner determines the tuning of the tympanic membrane corresponding to the debugging point based on the output reference frequency and the proximity of the detection frequency to the reference frequency and performs tuning.
  • the method of outputting the tuning related information of the method can adopt the video signal output or the audio signal output, and can achieve the object of the present invention.
  • the drum tuner of the present invention comprises a housing (not shown), a signal amplifying circuit 2 disposed in the housing, a sampling detection circuit 3, a band pass filter amplifier 4, and shaping.
  • the power source 6 is connected to the signal amplification circuit 2, the sampling detection circuit 3, the band pass filter amplifier 4, the shaping circuit 5, the MCU 8, the driving circuit 9, the detecting light emitting device, the detecting light receiving device, and the detecting signal output device.
  • Detection light receiving device signal amplifying circuit 2, sampling detecting circuit 3, band pass filter amplifier 4,
  • the shaping circuit 5, the MCU 8, the drive circuit 9, and the detection light emitting device are sequentially connected.
  • the MCU 8 is connected to the sampling detection circuit 3, and drives the sampling detection circuit 3 for detection.
  • the MCU 8 is connected to the detection signal output device to output tuning related information.
  • the MCU 8 controls the drive circuit 9 to drive the detection light emitting device to emit detection light.
  • the detecting light emitting device adopts the infrared emitting device 10, and the detecting light receiving device adopts the infrared receiving device 1, and the corresponding detecting light is infrared light.
  • the detecting light emitting device may employ an ultraviolet emitting device, and the detecting light receiving device may employ an ultraviolet receiving device.
  • the detecting signal output device adopts the display 7, and outputs the detected data, color, Information such as graphics, the display 7 is placed on the housing of the drum tuner.
  • the detection signal output device may use a speaker for outputting audio detection information, such as reading the detection frequency, and the proximity of the detection frequency indicated by the sound level to the reference frequency, and the speaker may be set in the tone.
  • the housing of the sounder can also be disposed on the housing.
  • the sampling detection circuit 3 samples a detection circuit capable of taking an envelope signal from the amplitude modulation wave, including but not limited to the following sampling detection circuit:
  • the sampling detection circuit 3 adopts the following structure: the sampling detection circuit includes an electronic analog switch 31, an electronic analog switch 34, an integrating capacitor 32, an integrating capacitor 35, and an operational amplifier 33, and an electronic analog switch 31 and an electronic analog switch 34, respectively.
  • the positive and negative input terminals of the operational amplifier 33 are connected.
  • One end of the integrating capacitor 32 is grounded, and the other end is connected to the connection end of the electronic analog switch 31 and the operational amplifier 33.
  • One end of the integrating capacitor 35 is grounded, and the other end is connected to the electronic analog switch 34 and the operational amplifier.
  • the input end of the electronic analog switch 34 is the input end of the sampling detection circuit
  • the output end of the operational amplifier 33 is the output end of the sampling detection circuit.
  • the sampling detection circuit 3 adopts the following structure: the sampling detection circuit includes a detection diode 36, a detection capacitor 37, and a detection resistor 38.
  • the anode of the detection diode 36 is connected in series at the first input end of the sampling detection circuit, and the detection capacitor 37 and The detecting resistors 38 are respectively connected between the negative electrode of the detecting diode 36 and the second input end of the sampling detecting circuit, and both ends of the detecting resistor 38 are output terminals of the sampling detecting circuit.
  • the angle between the light path of the detecting light emitting device and the detecting light receiving device is greater than or equal to The range of 0° is less than the equivalent of 50°.
  • the angles of the optical paths of the detecting light emitting device and the detecting light receiving device may be selected to be 5°, 10°, 15°, 20°, 25°, 30°, 35 40. 45. Wait'

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

La présente invention concerne un procédé pour accorder un tambour et un dispositif d'accordage de tambour. Le procédé d'accordage consiste à: émettre une lumière de test vers une peau de tambour vibrante et à recevoir la lumière de test; effectuer l'amplification, la détection d'onde, le filtrage d'onde et la mise en forme d'onde sur la lumière de test; mesurer la fréquence du signal mis en forme; et à produire des informations liées à l'accordage. Le dispositif d'accordage comprend un boîtier. À l'intérieur du boîtier, on trouve un circuit amplificateur de signal, un circuit d'échantillonnage et de détection d'onde, un amplificateur de filtrage d'onde de bande passante, un circuit de mise en forme d'onde, une unité MCU, un circuit d'excitation et une alimentation électrique. Un dispositif d'émission et de réception de lumière de test est placé sur le boîtier. Un dispositif de sortie de signal de détection est placé sur le boîtier ou à l'intérieur de ce dernier. L'alimentation électrique est couplée de manière séparée aux circuits et aux dispositifs de manière à fournir de la puissance. Le circuit d'échantillonnage et de détection d'onde extrait un signal d'enveloppe d'une onde AM. L'angle du trajet lumineux du dispositif d'émission et de réception de la lumière de test se situe entre 0 et 50 degrés. Un circuit de réception de la lumière de test, le circuit d'amplification, le circuit de détection d'onde, le circuit de filtrage d'onde, le circuit de mise en forme d'onde, le circuit MCU, le circuit d'excitation et un circuit d'émission de lumière de test sont connectés en séquence. L'unité MCU est connectée au circuit de détection d'onde et au dispositif de sortie de signal de détection. Au moyen du procédé pour accorder un tambour et du dispositif d'accordage de tambour, l'accordage peut être effectué de manière précise et pratique sans interférence de la part du bruit ou des harmoniques.
PCT/CN2014/075998 2014-04-22 2014-04-22 Procédé pour accorder un tambour et dispositif d'accordage de tambour WO2015131433A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/075998 WO2015131433A1 (fr) 2014-04-22 2014-04-22 Procédé pour accorder un tambour et dispositif d'accordage de tambour

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/075998 WO2015131433A1 (fr) 2014-04-22 2014-04-22 Procédé pour accorder un tambour et dispositif d'accordage de tambour

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WO2015131433A1 true WO2015131433A1 (fr) 2015-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111780857A (zh) * 2020-06-05 2020-10-16 南京曦光信息科技有限公司 一种基于谐波累加的p-otdr***的多点扰动定位检测方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2911630Y (zh) * 2006-06-07 2007-06-13 西北工业大学 一种物体表面压力分布测量装置
US20090000464A1 (en) * 2005-03-31 2009-01-01 Yamaha Corporation Percussion Detecting Apparatus and Electronic Percussion Instrument
CN202487129U (zh) * 2012-02-23 2012-10-10 李忠孝 调音装置
CN103534749A (zh) * 2011-03-15 2014-01-22 布拉姆.范登布鲁克 测量薄片材料的物理特征和/或物理特征变化的装置及适用于与该装置一起使用的薄片
CN103925986A (zh) * 2014-04-18 2014-07-16 深圳市蔚科电子科技开发有限公司 一种鼓调音方法及鼓调音器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090000464A1 (en) * 2005-03-31 2009-01-01 Yamaha Corporation Percussion Detecting Apparatus and Electronic Percussion Instrument
CN2911630Y (zh) * 2006-06-07 2007-06-13 西北工业大学 一种物体表面压力分布测量装置
CN103534749A (zh) * 2011-03-15 2014-01-22 布拉姆.范登布鲁克 测量薄片材料的物理特征和/或物理特征变化的装置及适用于与该装置一起使用的薄片
CN202487129U (zh) * 2012-02-23 2012-10-10 李忠孝 调音装置
CN103925986A (zh) * 2014-04-18 2014-07-16 深圳市蔚科电子科技开发有限公司 一种鼓调音方法及鼓调音器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111780857A (zh) * 2020-06-05 2020-10-16 南京曦光信息科技有限公司 一种基于谐波累加的p-otdr***的多点扰动定位检测方法

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