WO2019135291A1 - 楽器用送信機およびそのモード切替方法 - Google Patents
楽器用送信機およびそのモード切替方法 Download PDFInfo
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- WO2019135291A1 WO2019135291A1 PCT/JP2018/000138 JP2018000138W WO2019135291A1 WO 2019135291 A1 WO2019135291 A1 WO 2019135291A1 JP 2018000138 W JP2018000138 W JP 2018000138W WO 2019135291 A1 WO2019135291 A1 WO 2019135291A1
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- mode
- transmitter
- acceleration
- release threshold
- power saving
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000001133 acceleration Effects 0.000 claims abstract description 215
- 238000001514 detection method Methods 0.000 claims description 27
- 230000005236 sound signal Effects 0.000 claims description 24
- 230000005484 gravity Effects 0.000 claims description 15
- 238000007562 laser obscuration time method Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 abstract description 24
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 16
- 238000003199 nucleic acid amplification method Methods 0.000 description 16
- 238000004891 communication Methods 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
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- 238000004377 microelectronic Methods 0.000 description 1
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- 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
-
- 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
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
-
- 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
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
- G10H3/186—Means for processing the signal picked up from the strings
-
- 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
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
- G10H1/0083—Recording/reproducing or transmission of music for electrophonic musical instruments using wireless transmission, e.g. radio, light, infrared
-
- 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
- G10H1/18—Selecting circuits
-
- 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
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
- G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
-
- 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
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/395—Acceleration sensing or accelerometer use, e.g. 3D movement computation by integration of accelerometer data, angle sensing with respect to the vertical, i.e. gravity sensing
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- 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
- G10H2230/00—General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
- G10H2230/025—Computing or signal processing architecture features
- G10H2230/035—Power management, i.e. specific power supply solutions for electrophonic musical instruments, e.g. auto power shut-off, energy saving designs, power conditioning, connector design, avoiding inconvenient wiring
-
- 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
- G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
- G10H2240/171—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments
- G10H2240/201—Physical layer or hardware aspects of transmission to or from an electrophonic musical instrument, e.g. voltage levels, bit streams, code words or symbols over a physical link connecting network nodes or instruments
- G10H2240/211—Wireless transmission, e.g. of music parameters or control data by radio, infrared or ultrasound
Definitions
- the present invention relates to a transmitter for musical instruments and a mode switching method thereof.
- the musical instrument transmitter (transmitter) 15 is attached to a portable electronic musical instrument such as an electric guitar 14, a shoulder-type electronic keyboard, an electronic saxophone, etc., and is emitted from the electronic musical instrument.
- An audio signal is sent to the receiver 16.
- the receiver 16 receives an audio signal from the transmitter 15, the receiver 16 amplifies this by an amplifier and outputs the sound from the speaker 12. This makes it possible to enjoy playing the portable electronic musical instrument.
- the transmitter is mainly driven by a battery, so when the electronic musical instrument is not in use, it is switched to a power saving mode to save battery consumption.
- the unused state of the electronic musical instrument was determined by the audio signal, it was difficult to determine the unused state when the volume of the electronic musical instrument was reduced.
- the pickup output is high impedance, it is susceptible to power supply hum and fluorescent lamp noise, and due to the resonance of an open string, etc., an audio signal may be detected even during no operation. . Therefore, also in this case, it is difficult to determine the unused state by the audio signal.
- the present invention has been made to solve the above problems, and to provide a transmitter for musical instruments that accurately detects the unused state of a mounted electronic musical instrument and switches the mode, and a mode switching method thereof.
- the purpose is.
- a transmitter for musical instruments transmits an audio signal emitted from a musical instrument to the outside using a battery provided in the inside of the main body.
- a second mode in which the power consumption of the battery is smaller than that of the second mode, and the detection means for detecting the acceleration of the main body, and the detection value of the detection means in the first mode
- a switching unit configured to shift to the second mode when indicating.
- the transmitter for musical instrument is a releasing means for releasing the second mode and shifting to the first mode when the detection value of the detecting means exceeds the release threshold in the second mode.
- the release threshold is exceeded, either the case where the detection value becomes smaller than the release threshold to become equal to or greater than the release threshold or the case where the detected value becomes larger than the release threshold becomes smaller than the release threshold, or In both cases.
- the mode switching method of the present invention in a transmitter for musical instruments which transmits an audio signal emitted from a musical instrument to the outside using a battery provided inside the main body, from the first mode to the first mode, Switching to a second mode in which the power consumption is small, and detecting the acceleration of the main body in the first mode, and detecting values detected by the detecting step for a predetermined time within a predetermined range And a switching step of shifting to the second mode.
- the mode switching method switches from the second mode to the first mode in which the power consumption of the battery is larger than that of the second mode, and in the second mode, the acceleration of the main body is And a release step of releasing the second mode and shifting to the first mode when the detection value of the detection step exceeds a release threshold.
- the release threshold is exceeded, either the case where the detection value becomes smaller than the release threshold to become equal to or greater than the release threshold or the case where the detected value becomes larger than the release threshold becomes smaller than the release threshold, or In both cases.
- FIG. 1 is a figure which shows the use condition of the transmitter for musical instruments in this embodiment
- (b) is a perspective view of the transmitter for musical instruments. It is a block diagram which shows the electric constitution of the transmitter for musical instruments. It is a flowchart of main processing. 7 is a flowchart of release threshold setting processing; (A) is a figure showing the calculation method of the cancellation threshold when the deviation between the accelerations of three axes is large, (b) is the calculation method of the cancellation threshold when the deviation between the accelerations of three axes is small FIG.
- FIG. 1 (a) is a view showing a use state of a musical instrument transmitter (transmitter) (hereinafter referred to as "transmitter") 1
- FIG. 1 (b) is a perspective view of the transmitter 1.
- the transmitter 1 is mounted on a portable electronic musical instrument, such as a shoulder-mounted electric guitar 20, and transmits an audio signal input from the electric guitar 20 to the amplification device 30 for outputting a musical tone by wireless communication.
- the transmitter 1 is connected to a power button 1a for switching on / off of the power of the transmitter 1, and to an external device such as an electric guitar 20, and an audio signal from the external device And an input terminal 1b for inputting the signal of.
- the electric guitar 20 has a plurality of strings and an electromagnetic pickup (not shown) connected to the strings, and converts the vibration of the strings into an electric signal (sound signal) by the electromagnetic pickup and outputs it.
- the transmitter 1 and the electric guitar 20 are connected by an input terminal 1 b of the transmitter 1 and a jack (not shown) of the electric guitar 20.
- the audio signal output from the electric guitar 20 is input to the transmitter 1 through the input terminal 1b of the transmitter 1, and the audio signal is transmitted to the amplification device 30 by wireless communication, and the tone signal is output by the amplification device 30. Ru.
- the user H can enjoy playing.
- FIG. 2 is a block diagram showing an electrical configuration of the transmitter 1.
- the transmitter 1 is driven by a rechargeable battery B. That is, the drive voltage is supplied from the battery B to each part of the transmitter 1 including the CPU 10, and the transmitter 1 is driven.
- the CPU 10 is an arithmetic unit (control unit) that controls each part, and a 3-axis acceleration sensor (for example, LIS 2 DH 12 manufactured by ST Microelectronics, Inc.) 13 is connected.
- the three-axis acceleration sensor 13 is an acceleration sensor capable of detecting accelerations Ax to Az in three directions of X, Y, and Z axes, gravity, vibration, movement, and impact, and includes a release threshold register 13a.
- the release threshold register 13a is a register that stores the release threshold R for releasing the power saving mode of the transmitter 1 (the second mode in which the CPU 10 is in the sleep state) and returning to the normal mode (first mode). It is.
- any of the accelerations Ax to Az detected by the three-axis acceleration sensor 13 changes from a state smaller than the release threshold R to a release threshold R or more or from a state larger than the release threshold R to a release threshold R or less
- An interrupt signal is output from the three-axis acceleration sensor 13 to the CPU 10.
- the CPU 10 receives the interrupt signal, the CPU 10 returns from the sleep state and starts executing the main process (FIG. 3). That is, the power saving mode is released.
- the flash ROM 11 is a rewritable non-volatile memory, stores a control program 11a such as the main process (FIG. 3), and has a power saving threshold memory 11b and a power saving transition time memory 11c.
- the power saving threshold memory 11b calculates, in the normal mode, the previous value and the current value of sampled values of the accelerations Ax to Az which are output values of the three-axis acceleration sensor 13 in order to determine the stationary state of the transmitter 1.
- the power saving threshold is set in accordance with the square sum S of the difference values of the accelerations Ax to Az detected in the stationary state of the transmitter 1. That is, in the stationary state, the accelerations Ax to Az detected by the transmitter 1 have the magnitude of the acceleration vector in which the gravitational acceleration is decomposed in the X-axis to Z-axis directions, respectively, since the acceleration other than the gravitational acceleration is not detected. Therefore, in the present embodiment, “20” is set as the power saving threshold value based on the accelerations Ax to Az detected in the stationary state.
- the power saving transition time memory 11 c is a memory in which a power saving transition time, which is a time condition for shifting to the power saving mode, is stored.
- the transmitter 1 saves energy from the normal mode when the duration S having a smaller sum of squared difference values of accelerations Ax to Az, which are output values of the 3-axis acceleration sensor 13, is longer than the energy saving transition time. Transition to power mode.
- “3 minutes” is set as the initial value of the power saving transition time. As described later, in accordance with an instruction from the amplification device 30, the initial value can be set and changed in the range of "3 minutes to 30 minutes".
- the RAM 12 is a memory for rewritably storing various work data, flags and the like when the CPU 10 executes a program such as the control program 11a, and the acceleration memory 12a, square sum memory 12b, difference value memory 12c, threshold coefficient memory And 12d.
- the acceleration memory 12a is a memory for storing the accelerations Ax to Az outputted from the three-axis acceleration sensor 13 in a distinguishable manner.
- the square sum memory 12 b is a memory for storing the calculation result of the square sum S of the difference values of the accelerations Ax to Az.
- the difference value memory 12c is a memory for storing a difference value d between the second largest acceleration and the third largest acceleration among the three absolute values of accelerations Ax to Az.
- the accelerations will be referred to as “acceleration A1, acceleration A2, acceleration A3” in descending order of acceleration.
- the threshold coefficient memory 12 d is a memory in which a threshold coefficient ⁇ , which is a coefficient to be added to one of the accelerations A 1 to A 3 when calculating the release threshold R, is stored.
- the release threshold R is calculated by adding the threshold coefficient ⁇ set according to the deviation between the accelerations A1 to A3 to any of the accelerations A1 to A3.
- the input unit 14 is connected to the input terminal 1 b (FIG. 1B), and is an interface for inputting a signal such as an audio signal from an external device such as the electric guitar 20.
- a signal such as an audio signal from an external device such as the electric guitar 20.
- the input unit 14 is also configured to be connectable to the output unit 30d of the amplification device 30, and in the state where these are connected, the power saving threshold stored in the power saving threshold memory 11b described above, the power saving transition time memory The power saving transition time and the like stored in 11 c can be rewritten according to the instruction from the amplification device 30.
- the wireless communication unit 15 is an interface for transmitting and receiving to and from an external device by wireless communication.
- the wireless communication unit 15 is wirelessly connected to the receiver 30 a of the amplification device 30, and an audio signal is transmitted from the transmitter 1 to the amplification device 30.
- the CPU 10, the flash ROM 11, the RAM 12, the input unit 14, and the wireless communication unit 15 described above are connected to one another via the bus line 16.
- the amplification device 30 is a device that amplifies and outputs the input audio signal, and is wirelessly connected to the transmitter 1 and the like.
- the amplification device 30 generates a tone as a tone (a receiver 30a for receiving a voice signal, an amplifier 30b for amplifying an analog tone generated from the received voice signal, and an analog tone signal amplified by the amplifier 30b)
- a speaker 30c for outputting) and an output unit 30d which is an interface for outputting a signal to an external device such as the transmitter 1 are provided.
- the signal is transmitted from the output unit 30d to the input unit 14, and the input terminal 1b is Power is supplied to the transmitter 1 via the battery 1 and the battery B of the transmitter 1 is charged.
- the main processing is executed when the power of the transmitter 1 is turned on, and is also executed when an interrupt signal is output from the three-axis acceleration sensor 13 to the CPU 10.
- the time counter i is initialized to 0 (S1).
- the clock counter i measures the duration during which the sum of squares S of the difference values of the accelerations Ax to Az is smaller than the power saving threshold in the processing of S5 to S7 described later, and compares the measured result with the power saving transition time. Is a counter variable of If the audio signal is input from the electric guitar 20 to the input unit 14 after the process of S1, the audio signal is transmitted to the amplification device 30 by the wireless communication unit 15 (S2). Thereby, an audio signal based on the performance of the electric guitar 20 is transmitted to the amplification device 30, and the audio signal is amplified and output by the amplification device 30.
- the accelerations Ax to Az are acquired from the three-axis acceleration sensor 13, and are stored in the acceleration memory 12a in a distinguishable manner (S3). Then, the calculation result of the sum of squares S of the difference between the previous value and the current value of each of the accelerations Ax to Az in the acceleration memory 12a is stored in the sum of squares memory 12b (S4), and the sum of squares S is the power saving threshold memory It is checked whether it is smaller than the power saving threshold stored in 11b (S5).
- the three-axis acceleration sensor 13 calculates the accelerations Ax to Az other than the gravitational acceleration. Not detected That is, it can be determined that the transmitter 1 is in the stationary state (the unused state of the electric guitar 20, the performance stop state).
- the performance operation of the electric guitar 20 by the user H has a wide range from the operation with relatively large vibration such as swinging the electric guitar 20 by the user H or strumming the string, to the operation with relatively small vibration such as changing the fret .
- the three-axis acceleration sensor 13 detects the gravitational acceleration and the acceleration based on the operation in which the small vibration is, so that an acceleration larger than the gravitational acceleration is detected as the accelerations Ax to Az.
- the sum of squares S of the difference values of the accelerations Ax to Az is equal to or more than the power saving threshold value, it can be determined that the transmitter 1 is not stationary, that is, the playing state of the electric guitar 20.
- the determination of the stationary state (playing stop state) of the transmitter 1 can be performed using the accelerations Ax to Az and the power saving threshold value based on the gravitational acceleration.
- the processing is shifted to S2, and the processing after S2 is repeated. If the sum of squares S is equal to or more than the power saving threshold stored in the power saving threshold memory 11b in the process of S5 (S5: No), it can be determined that some vibration is applied to the transmitter 1 and the electric guitar 20. That is, it can be determined that the electric guitar 20 is in the playing state. Therefore, in such a case, the processing is shifted to S1, the value of the clock counter i is cleared to 0, and the processing after S1 is repeated.
- FIG. 8 Before shifting to the power saving mode (S9 in FIG. 3), the release threshold R which is the release condition of the power saving mode is calculated, and the release threshold R is set to the three-axis acceleration sensor 13 Is a process for setting
- the release threshold setting process (S8) first, the absolute values of the accelerations Ax to Az stored in the acceleration memory 12a are calculated, and the accelerations A1 to A3 in descending order of these are obtained (S20). Next, a difference value d, which is the difference between the acceleration A2 having the second largest acceleration and the acceleration A3 having the third largest acceleration, is calculated and stored in the difference value memory 12c (S21). Thereafter, it is checked whether the difference between the accelerations A1 and A2 is larger than twice the difference value d (S22).
- S22 the process of S22 and the subsequent processes of S23 and S24 will be described.
- FIG. 5A shows a method of calculating the release threshold R when the deviation between the accelerations A1 to A3 is large.
- FIG. 5A illustrates the case where the acceleration Ax takes the acceleration A1, the acceleration Az takes the acceleration A2, and the acceleration Ay takes the acceleration A3.
- the difference value d between the accelerations A2 and A3 is calculated.
- the difference value d is set as the threshold coefficient ⁇ (S23), and the one obtained by adding the threshold coefficient ⁇ to the acceleration A2 is used as the release threshold R in the three-axis acceleration sensor 13. It is set (S24). That is, the release threshold R is stored in the release threshold register 13 a of the three-axis acceleration sensor 13 by the CPU 10.
- the release threshold setting process (S8) is executed when it is determined that the transmitter 1 continues to be in the stationary state by the processes of S5 to S7 (FIG. 3).
- the acceleration detected by is due to the gravitational acceleration. Therefore, in the case of FIG. 5A, the X-axis direction which is the acceleration A1 includes many vertical components on which the gravitational acceleration is applied.
- the release threshold R is set based on the acceleration A1 largely affected by such a gravitational acceleration, the acceleration Ax is released if the electric guitar 20 can not be lifted sharply even if lifted vertically. The threshold R is never exceeded. Similarly, even if the electric guitar 20 is shaken in the horizontal direction or the like, the accelerations Ay and Az exceed the release threshold R only when the electric guitar 20 is shaken largely. That is, if the release threshold R is set based on the large acceleration A1 that protrudes, the "sensitivity" for returning from the power saving mode to the normal mode is reduced.
- the release threshold R is calculated by adding the threshold coefficient ⁇ to the second largest acceleration A2.
- the accelerations Ay and Az exceed the release threshold R.
- the acceleration Ax shifts from the acceleration A1 to a negative acceleration via the acceleration 0.
- the acceleration Ax shifts from a state in which the release threshold R is exceeded to a level below the release threshold R.
- an interrupt signal is output from the 3-axis acceleration sensor 13 to the CPU 10 at a timing when the acceleration Ax exceeds the release threshold R and becomes equal to or less than the release threshold R, and the CPU 10 returns from the power saving mode to the normal mode.
- the threshold coefficient ⁇ is the difference value d between the acceleration A2 and the acceleration A3, it becomes the release threshold R in which the deviation between the accelerations A1 to A3 is taken into consideration. Therefore, even when the acceleration A1 protrudes and is large, it is possible to set the release threshold R with which the return sensitivity from the power saving mode to the normal mode is good.
- the threshold coefficient ⁇ is set based on the accelerations A1 to A3 of all three axes.
- a value of 5% of the acceleration A1 is used as the threshold coefficient ⁇ , and is stored in the threshold coefficient memory 12d (S25).
- FIG. 5B is a diagram showing a method of calculating the release threshold R when the deviation between the accelerations A1 to A3 is small.
- the acceleration Ax takes the acceleration A1
- the acceleration Ay takes the acceleration A2
- the acceleration Az takes the acceleration A3.
- the difference between the accelerations A1 and A2 is determined to be not more than twice the difference value d, and the deviation between the accelerations A1 to A3 is small. Therefore, since the deviation between the accelerations A1 to A3 is small, the release threshold R is determined based on all the accelerations A1 to A3 unlike the case where the deviation between the accelerations A1 to A3 described above in FIG. 5A is large.
- a value of 5% of the acceleration A1 is set as the threshold coefficient ⁇ (S25 in FIG. 4).
- the threshold coefficient ⁇ is a value of 5% of the acceleration A1
- the release threshold R is a value obtained by adding the acceleration A1 and the threshold coefficient ⁇ , so the release threshold R may be set too large in that case. In this case, the return sensitivity from the power saving mode to the normal mode is deteriorated. Conversely, when the release threshold R is set too small, the recovery sensitivity also decreases.
- the upper limit of the release threshold R is set to either one of the X axis, the Y axis, or the Z axis.
- the maximum gravity acceleration which is the acceleration when acceleration is applied, is taken as the maximum gravity acceleration Am.
- the lower limit of the release threshold R is averaged over the X, Y and Z axes and the acceleration when the gravity acceleration is applied Gravity acceleration Ac.
- at least the three-axis average gravitational acceleration Ac is set as the release threshold R, so that the return sensitivity from the power saving mode to the normal mode can be set favorably.
- the release threshold setting process (S8) is ended, and the process returns to the main process of FIG. 3 to sleep the CPU 10 (S9) and shift to the power saving mode.
- the three-axis acceleration sensor 13 In the power saving mode, when any of the accelerations Ax to Az detected by the three-axis acceleration sensor 13 changes from a state smaller than the release threshold R to a release threshold R or higher, or from a state larger than the release threshold R lower than the release threshold R When it becomes, the three-axis acceleration sensor 13 outputs an interrupt signal to the CPU 10.
- the CPU 10 receives this interrupt signal, it returns from the sleep state (power saving mode) to the normal mode, and executes the main process (FIG. 3) from the process of S1.
- the release threshold R is calculated based on the accelerations A1 to A3 in the stationary state of the transmitter 1 and the deviation between the accelerations A1 to A3 immediately before the transition to the power saving mode, the transition to the power saving mode
- the transmitter 1 can be properly returned from the power saving mode to the normal mode according to the later change in acceleration.
- the transmitter 1 in this embodiment saves a sum of squares S of the difference values of the accelerations Ax to Az detected by the three-axis acceleration sensor 13 based on the gravity acceleration. If it is judged that the stationary state is less than the power threshold and the stationary state exceeds the power saving transition time, it is determined that the electric guitar 20 is not in use, and the transmitter 1 is shifted to the power saving mode Let As described above, the stationary state of the transmitter 1 and the unused state of the electric guitar 20 can be accurately detected based on the accelerations Ax to Az, and the transition to the power saving mode can be accurately performed.
- the release threshold R is calculated based on the accelerations A1 to A3 in the stationary state of the transmitter 1 and the deviation between the accelerations A1 to A3 immediately before the transition to the power saving mode, so the transition to the power saving mode
- the transmitter 1 can be properly returned from the power saving mode to the normal mode according to the later change in acceleration.
- the present invention is not limited at all to the embodiment mentioned above, and it is easily guessed that various improvement change is possible within the range which does not deviate from the meaning of the present invention It is possible.
- a portable shoulder-mounted electric guitar 20 has been described as an example of the electronic musical instrument.
- the present invention is not necessarily limited thereto, and the user H such as a portable electronic musical instrument such as a shoulder-type electric base, a shoulder-type electronic keyboard, or an electronic saxophone (electronic brass instrument) holds and plays. Any electronic musical instrument connected to the amplification device 30 by wireless communication may be applied as appropriate.
- the acceleration sensor has been described using the three-axis acceleration sensor 13, a one-axis acceleration sensor or a two-axis acceleration sensor may be used.
- the stationary state of the transmitter 1 is determined by comparing the power saving threshold value with the square sum S of the difference values of the accelerations Ax to Az.
- the stationary state of the transmitter 1 may be determined by comparing the sum of the accelerations Ax to Az, or the product or average value of these may be compared to determine the stationary state of the transmitter 1.
- a power saving threshold is set according to the sum, product or average value of the accelerations Ax to Az.
- the difference value d between the accelerations A2 and A3 is used as a value for judging the deviation between the accelerations A1 to A3, and the difference value d is used as the threshold coefficient ⁇ in the process of S23. It was. However, instead of the difference value d, a constant calculated based on the actual use condition of the electric guitar 20 is stored in the flash ROM 11 or the like, and the deviation between the accelerations A1 to A3 is determined by the constant. A constant may be used as the threshold coefficient ⁇ . Further, the deviation between the accelerations A1 to A3 may be determined by the half value of the difference value between the accelerations A1 and A2, or such value may be used as the threshold coefficient ⁇ .
- a constant corresponding to the difference between the acceleration A1 and the acceleration A2 calculated based on the actual use condition of the electric guitar 20 is stored in the flash ROM 11 or the like, and the deviation between the accelerations A1 to A3 is determined by the constant.
- the constant may be used as the threshold coefficient ⁇ .
- the threshold coefficient ⁇ may be set, or 5% of the average value of the accelerations A1 to A3 may be set as the threshold coefficient ⁇ .
- a value calculated based on the actual use condition of the electronic musical instrument may be stored in the flash ROM 11 or the like and used as the threshold coefficient ⁇ .
- the transition to the power saving mode and the return to the normal mode were performed only by the transmitter 1.
- the present invention is not necessarily limited to this, and when the transmitter 1 shifts to the power saving mode or returns to the normal mode, the shift signal or return signal is transmitted to the amplifier 30 or the electronic device to which the transmitter 1 is attached. It is also possible to transmit to a musical instrument (for example, the electric guitar 20) and to shift to the power saving mode or to return to the normal mode in the amplification device 30 or the like that has received the signal.
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- Acoustics & Sound (AREA)
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Abstract
Description
送信機1と電気ギター20とは、送信機1の入力端子1bと、電気ギター20のジャック(図示しない)とで接続される。電気ギター20から出力された音声信号は、送信機1の入力端子1bを介して送信機1に入力され、その音声信号は無線通信にて増幅装置30へ送信され、増幅装置30によって楽音出力される。これによりユーザHは、演奏を楽しむことができる。
13 3軸加速度センサ(検出手段、3軸の加速度センサ)
20 電気ギター(電子楽器)
B 電池
R 解除閾値
S 自乗和
S3 検出工程
S8 解除閾値設定処理(解除閾値設定手段)
S9 切替手段、切替工程
Claims (9)
- 楽器から発せられる音声信号を、本体内部に備えた電池を用いて外部に送信する楽器用送信機であって、
第1のモードと、その第1のモードより前記電池の消費電力が小さい第2のモードとを有し、
前記本体の加速度を検出する検出手段と、
前記第1のモードにおいて前記検出手段の検出値が一定時間一定範囲の値を示す場合に前記第2のモードへ移行する切替手段とを備えていることを特徴とする楽器用送信機。 - 前記検出手段は、3軸の加速度センサで構成され、
前記切替手段は、前記3軸の加速度センサの検出値の自乗和が一定時間一定範囲の値である場合に前記第2のモードへ移行するものであることを特徴とする請求項1記載の楽器用送信機。 - 前記第2のモードにおいて前記検出手段の検出値が解除閾値を超えた場合に前記第2のモードを解除して前記第1のモードへ移行する解除手段を備えていることを特徴とする請求項1又は2に記載の楽器用送信機。
- 楽器から発せられる音声信号を、本体内部に備えた電池を用いて外部に送信する楽器用送信機であって、
第1のモードと、その第1のモードより前記電池の消費電力が小さい第2のモードとを有し、
前記本体の加速度を検出する検出手段と、
前記第2のモードにおいて前記検出手段の検出値が解除閾値を超えた場合に前記第2のモードを解除して前記第1のモードへ移行する解除手段とを備えていることを特徴とする楽器用送信機。 - 前記第1のモードから前記第2のモードへの移行時に、前記検出手段の検出値に基づいて前記解除閾値を設定する解除閾値設定手段を備えていることを特徴とする請求項3又は4に記載の楽器用送信機。
- 前記検出手段は、3軸の加速度センサで構成され、
前記解除閾値設定手段は、前記3軸の加速度センサの検出値のうち2番目と3番目に大きい検出値に基づいて前記解除閾値を設定するものであることを特徴とする請求項5記載の楽器用送信機。 - 前記検出手段は、3軸の加速度センサで構成され、
前記解除閾値設定手段は、前記3軸の加速度センサのすべての検出値に基づいて前記解除閾値を設定するものであり、その解除閾値は、重力加速度が3軸に平均してかかった場合の平均重力加速度以上であって、重力加速度が3軸のうちいずれか1軸にかかった場合の最大重力加速度以下に設定されることを特徴とする請求項5記載の楽器用送信機。 - 楽器から発せられる音声信号を、本体内部に備えた電池を用いて外部に送信する楽器用送信機において、第1のモードからその第1のモードより前記電池の消費電力が小さい第2のモードへ切り替えを行うモード切替方法であって、
前記第1のモードにおいて前記本体の加速度を検出する検出工程と、
その検出工程による検出値が一定時間一定範囲の値を示す場合に前記第2のモードへ移行する切替工程とを備えていることを特徴とするモード切替方法。 - 楽器から発せられる音声信号を、本体内部に備えた電池を用いて外部に送信する楽器用送信機において、第2のモードからその第2のモードより前記電池の消費電力が大きい第1のモードへ切り替えを行うモード切替方法であって、
前記第2のモードにおいて前記本体の加速度を検出する検出工程と、
その検出工程の検出値が解除閾値を超えた場合に前記第2のモードを解除して前記第1のモードへ移行する解除工程とを備えていることを特徴とするモード切替方法。
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US16/960,319 US11942066B2 (en) | 2018-01-08 | 2018-01-08 | Transmitter for musical instrument, and mode switching method thereof |
JP2019563921A JPWO2019135291A1 (ja) | 2018-01-08 | 2018-01-08 | 楽器用送信機およびそのモード切替方法 |
EP18898113.8A EP3739568B1 (en) | 2018-01-08 | 2018-01-08 | Transmitter for musical instrument, and mode switching method thereof |
KR1020207019740A KR102415111B1 (ko) | 2018-01-08 | 2018-01-08 | 악기용 송신기 및 그 모드 전환 방법 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09269786A (ja) * | 1996-04-02 | 1997-10-14 | Yamaha Corp | 電気弦楽器 |
JP2000352980A (ja) * | 1999-06-14 | 2000-12-19 | Audio Technica Corp | 電気楽器 |
JP2009063563A (ja) * | 2007-08-10 | 2009-03-26 | Asahi Kasei Electronics Co Ltd | 加速度検出デバイスおよびそれを備えた携帯機器 |
JP2013122669A (ja) * | 2011-12-09 | 2013-06-20 | Sony Corp | 電子機器、プログラム及び電子機器の制御方法 |
JP2015052653A (ja) | 2013-09-05 | 2015-03-19 | ヤマハ株式会社 | 音波形データ処理装置 |
JP2016194721A (ja) * | 2016-07-12 | 2016-11-17 | ヤマハ株式会社 | 楽器および信号処理装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3627321B2 (ja) | 1995-10-02 | 2005-03-09 | ヤマハ株式会社 | 演奏制御装置 |
JP4375800B2 (ja) * | 2005-09-22 | 2009-12-02 | 株式会社ナビタイムジャパン | 携帯型ナビゲーション装置、その表示制御方法および学習方法 |
CN101727164A (zh) * | 2008-10-16 | 2010-06-09 | 达方电子股份有限公司 | 发光键盘模块及其省电方法 |
US8237041B1 (en) * | 2008-10-29 | 2012-08-07 | Mccauley Jack J | Systems and methods for a voice activated music controller with integrated controls for audio effects |
TW201118662A (en) * | 2009-11-30 | 2011-06-01 | Yin-Chen Chang | Trace-generating systems and methods thereof |
JP6314977B2 (ja) * | 2013-06-07 | 2018-04-25 | ソニー株式会社 | 入力デバイス及び送信方法、ホストデバイス及び受信方法、並びに、信号処理システム及び送受信方法 |
WO2015085092A1 (en) * | 2013-12-04 | 2015-06-11 | Bean Robert Warren | Protection system for individual mobile objects |
CN204482003U (zh) * | 2015-02-13 | 2015-07-15 | 广东新涛科技有限公司 | 一种多功能无线话筒 |
JP6444288B2 (ja) * | 2015-10-30 | 2018-12-26 | 株式会社ズーム | コントローラ、音源モジュール及び電子楽器 |
US10568034B2 (en) * | 2016-01-23 | 2020-02-18 | Blustream Corporation | Intelligent power management for monitoring a movable object |
CN107181990A (zh) * | 2016-03-11 | 2017-09-19 | 台达电子工业股份有限公司 | 播音系统及其传声装置与电子装置的控制方法 |
WO2017195343A1 (ja) * | 2016-05-13 | 2017-11-16 | 株式会社阪神メタリックス | 楽音発生システム |
-
2018
- 2018-01-08 JP JP2019563921A patent/JPWO2019135291A1/ja active Pending
- 2018-01-08 CN CN201880085251.0A patent/CN111566725B/zh active Active
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09269786A (ja) * | 1996-04-02 | 1997-10-14 | Yamaha Corp | 電気弦楽器 |
JP2000352980A (ja) * | 1999-06-14 | 2000-12-19 | Audio Technica Corp | 電気楽器 |
JP2009063563A (ja) * | 2007-08-10 | 2009-03-26 | Asahi Kasei Electronics Co Ltd | 加速度検出デバイスおよびそれを備えた携帯機器 |
JP2013122669A (ja) * | 2011-12-09 | 2013-06-20 | Sony Corp | 電子機器、プログラム及び電子機器の制御方法 |
JP2015052653A (ja) | 2013-09-05 | 2015-03-19 | ヤマハ株式会社 | 音波形データ処理装置 |
JP2016194721A (ja) * | 2016-07-12 | 2016-11-17 | ヤマハ株式会社 | 楽器および信号処理装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3739568A4 |
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