Digital musical instrument Octopus piano

Abstract

The present invention provides a new digital musical instrument, an octopus piano, which includes an octopus-shaped doll, and the doll is embedded with: (a) a Bela electronic interactive controller, which runs Pure Data code and stores digitally simulated monochord sounds; (b) an absolute direction sensor, which is used to sense the absolute direction, angular velocity vector, acceleration vector and linear acceleration vector in three-dimensional space; (c) a plurality of cloth pressure sensors, which are respectively used to sense the pressure; wherein the Bela electronic interactive controller and the absolute direction sensor are placed together on the head of the octopus doll, and the plurality of cloth pressure sensors are sewn inside the claws of the octopus doll. The present invention can be considered as an improved monochord, which allows multiple sounds to be played simultaneously, and expands the sound range produced by the traditional monochord. The present invention introduces new electronic sounds and performance technologies based on digital technology.

Description

Technical Field

[0001] The invention belongs to the technical field of musical instruments, and in particular relates to a digital musical instrument, an octopus piano. Background Art

[0002] Although traditional musical instruments have their traditional characteristics and features, with the advancement of technology and the development of the digital age, they seem to be unable to better meet people's needs. People are eager for the diversity of musical instrument sounds and the diversity of musical instrument performances. Summary of the invention

[0003] The purpose of the invention is to provide a digital musical instrument, an octopus piano, which perfectly combines the characteristics of a traditional monochord with modern digital music.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0005] The digital musical instrument Octopus Piano includes an octopus-shaped doll with the following embedded inside:

[0006] (a) A Bela electronic interactive controller running Pure Data code and storing digitally simulated monochord sounds;

[0007] (b) an absolute direction sensor, used to sense the absolute direction, angular velocity vector, acceleration vector and linear acceleration vector in three-dimensional space;

[0008] (c) a plurality of cloth pressure sensors, respectively used to sense the pressure;

[0009] The Bela electronic interactive controller and the absolute direction sensor are placed together on the head of the octopus doll, and the plurality of fabric pressure sensors are sewn inside the claws of the octopus doll.

[0010] Preferably, the absolute orientation sensor uses the chip Adafruit 9-DOF Absolute OrientationIMU Fusion Breakout-BNO055.

[0011] Preferably, the fabric pressure sensor is formed by sewing an upper layer of fabric, a lower layer of fabric and a conductive sponge sandwiched therebetween, and conductive fabrics of the same position and area are provided on the upper layer of fabric and the lower layer of fabric, wherein a resistor is connected in the area of ​​the lower layer of fabric where no conductive fabric is provided.

[0012] Preferably, six cloth pressure sensors are provided, which are correspondingly arranged inside the six claws of the octopus doll.

[0013] Preferably, two buttons are provided at the positions of the two eyes of the octopus doll's head, serving as a sound control switch and an absolute direction sensor initial value reset switch respectively. The sound control switch and the absolute direction sensor initial value reset switch are electrically connected to the Bela electronic interactive controller and the absolute direction sensor in the octopus doll's head.

[0014] Preferably, an interface for connecting an external power source and a speaker is preset at the bottom of the octopus doll.

[0015] Technical effects of the invention: The invention is a modified version of the traditional Chinese musical instrument monochord, which simulates the timbre of the monochord by combining sensor technology, conductive fabrics and other electronic technologies, making the traditional musical instrument more innovative, imaginative and interesting; comparing the invention with the traditional monochord, the high pitches originally placed at six different positions of the strings are respectively transformed into the six claws of the new digital musical instrument octopus, and the rocker function of the monochord is replaced by an absolute sensor and placed on the head of the octopus. This design retains part of the monochord's playing method of shaking the rocker, but preserves the touch and texture of the plush doll; compared with the traditional monochord, the invention allows multiple sounds to be played simultaneously and expands the sound range produced by the traditional monochord; in addition, the invention introduces new electronic sounds and performance technologies based on digital technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a hardware structure diagram of the present invention.

[0017] Figure 2 It is a circuit schematic diagram of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the fabric sensor in the present invention.

[0019] In the figure: 1. upper layer of fabric, 2. lower layer of fabric, 3. conductive fabric, 4. conductive sponge, 5. resistor, 6. seam. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] The digital musical instrument Octopus Piano includes an octopus-shaped doll, in which a Bela electronic interactive controller, an absolute direction sensor, and several cloth pressure sensors are embedded. The connection relationship diagram of the above hardware is as follows: Figure 1 As shown, the circuit structure is as Figure 2 The specific instructions are as follows:

[0022] (a) A Bela electronic interactive controller running Pure Data code and storing digitally simulated monochord sounds, wherein the Bela electronic interactive controller is an open source embedded computing platform developed specifically for high-quality, ultra-low latency interactive audio. The Bela electronic interactive controller provides stereo audio, analog and digital I / O in a single independent package. It combines the processing power of the BeagleBone Black embedded computer with the timing accuracy and connectivity of a microcontroller; Pure Data code is an open source visual programming language for audio and video processing.

[0023] (b) an absolute direction sensor, which is a sensor integrating the functions of an accelerometer, a magnetometer, a gyroscope, etc., and is used to sense the absolute direction, angular velocity vector, acceleration vector, and linear acceleration vector in three-dimensional space;

[0024] (c) a plurality of cloth pressure sensors, respectively used to sense the pressure;

[0025] The Bela electronic interactive controller and the absolute direction sensor are placed together on the head of the octopus doll, and the plurality of fabric pressure sensors are sewn inside the claws of the octopus doll.

[0026] The absolute orientation sensor uses the chip Adafruit 9-DOF Absolute Orientation IMUFusion Breakout-BNO055.

[0027] like Figure 3 As shown, the fabric pressure sensor is formed by sewing an upper fabric 1, a lower fabric 2 and a conductive sponge 4 sandwiched therebetween through a seam 6, and conductive fabrics 3 having the same position and area are provided on the upper fabric 1 and the lower fabric 2, wherein a resistor is connected to the area where the conductive fabric 3 is not provided on the lower fabric 2. The conductive fabric is a traditional fabric structure with conductive fibers added to it, so that it has conductivity. After being combined with the conductive sponge, the pressure acting on the surface can change the resistance value, thereby acting as a pressure sensor to sense the pressure.

[0028] There are six cloth pressure sensors, which are correspondingly arranged inside the six claws of the octopus doll.

[0029] Two buttons are provided at the positions of the two eyes of the octopus doll's head, which serve as a sound control switch and an absolute direction sensor initial value reset switch respectively. The sound control switch and the absolute direction sensor initial value reset switch are electrically connected to the Bela electronic interactive controller and the absolute direction sensor in the octopus doll's head.

[0030] There is a preset interface for connecting external power supply and speakers at the bottom of the octopus doll.

[0031] The working principle of the present invention is as follows: the absolute direction sensor and the fabric pressure sensor transmit the sensing values ​​to the Bela electronic interactive controller in real time; the Bela electronic interactive controller runs the PureData code and stores the digital simulated monochord sound. When receiving the trigger signal of the fabric pressure sensor, the Bela electronic interactive controller plays the corresponding sound and adjusts the volume according to the pressure value; the Bela electronic interactive controller receives the spatial dynamic value transmitted by the absolute direction sensor, and adjusts the pitch of the played sound by the change of the group of values; when the new digital musical instrument octopus piano is connected to the power supply and the sound system, the performer can trigger six different high-pitched monochord simulated sounds by squeezing six octopus claws, and the greater the squeezing force, the louder the volume; when the sound is triggered, the performer can change the pitch by shaking the octopus head.

Claims

1. A digital musical instrument, Octopus Piano, characterized in that: Includes an octopus-shaped doll with: (a) A Bela electronic interactive controller running Pure Data code and storing digitally simulated monochord sounds; (b) an absolute direction sensor, used to sense the absolute direction, angular velocity vector, acceleration vector and linear acceleration vector in three-dimensional space; (c) a plurality of fabric pressure sensors, each used to sense pressure; the fabric pressure sensors are formed by sewing an upper fabric (1), a lower fabric (2) and a conductive sponge (4) sandwiched therebetween through seams (6); conductive fabrics (3) having the same position and area are provided on the upper fabric (1) and the lower fabric (2); a resistor is connected to the area of ​​the lower fabric (2) where the conductive fabric (3) is not provided; The Bela electronic interactive controller and the absolute direction sensor are placed together on the head of the octopus doll, and the plurality of fabric pressure sensors are sewn inside the claws of the octopus doll; The absolute orientation sensor uses the chip Adafruit 9-DOF Absolute Orientation IMUFusionBreakout-BNO055.

2. The digital musical instrument octopus piano as claimed in claim 1, characterized in that: There are six cloth pressure sensors, which are correspondingly arranged inside the six claws of the octopus doll.

3. The digital musical instrument octopus piano as claimed in claim 1, characterized in that: Two buttons are provided at the positions of the two eyes of the octopus doll's head, which serve as a sound control switch and an absolute direction sensor initial value reset switch respectively. The sound control switch and the absolute direction sensor initial value reset switch are electrically connected to the Bela electronic interactive controller and the absolute direction sensor in the octopus doll's head.

4. The digital musical instrument octopus piano as claimed in claim 1, characterized in that: There is a preset interface for connecting external power supply and speakers at the bottom of the octopus doll.

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