CN111760303A - New digital musical instrument Octopus - Google Patents

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

New digital musical instrument Octopus

technical field

The invention belongs to the technical field of musical instruments, and in particular relates to a novel digital musical instrument octopus.

Background technique

Although traditional musical instruments have their traditional characteristics and characteristics, with the advancement of technology and the development of the digital age, it seems that they cannot better meet people's needs. People yearn for the diversity of musical instrument sounds and musical instrument performance. .

SUMMARY OF THE INVENTION

The object of the present invention is to provide a new type of digital musical instrument octopus, which perfectly combines the characteristics of traditional solo strings with modern digital music.

In order to realize above-mentioned technical purpose, the present invention adopts following technical scheme:

The new digital instrument, the Octopus, includes an octopus-shaped doll with embedded:

(a) a Bela electronic interactive controller that runs Pure Data code and stores digitally simulated solo strings;

(b) an absolute orientation sensor for sensing absolute orientation, angular velocity vector, acceleration vector and linear acceleration vector in three-dimensional space;

(c) Several cloth pressure sensors are used to sense the pressure respectively;

Wherein, the Bela electronic interactive controller and the absolute direction sensor are placed on the head of the octopus doll together, and the several cloth pressure sensors are sewn inside the claws of the octopus doll.

Preferably, the absolute orientation sensor adopts the chip Adafruit 9-DOF Absolute OrientationIMU Fusion Breakout-BNO055.

Preferably, the cloth pressure sensor is made of upper layer cloth, lower layer cloth and conductive sponge sandwiched between them by sewing, and the upper layer cloth and the lower layer cloth are provided with conductive cloths with the same position and size , wherein a resistor is connected in the area where the conductive fabric is not arranged on the lower fabric.

Preferably, six cloth pressure sensors are used, which are correspondingly arranged inside the six claws of the octopus doll.

Preferably, two buttons are provided at the positions of the two eyes on the head of the octopus doll, which are respectively used as a sound control switch and a switch for resetting the initial value of the absolute direction sensor. The internal Bela electronic interactive controller is electrically connected to the absolute orientation sensor.

Preferably, an interface for connecting an external power supply and a sound is preset on the bottom of the octopus doll.

Technical effects of the present invention: The present invention is a modified version of the traditional Chinese musical instrument monochord, which simulates the tone of the monochord by combining sensor technology, conductive fabric and other electronic technologies, making the traditional musical instrument more innovative, imaginative and fun; In contrast to the invention and the traditional lyre, the treble originally placed in six different positions on the strings were transformed into the six claws of the new digital instrument, the octopus, while the rocker function of the unichor was replaced by an absolute sensor. And placed on the head of the octopus, the design retains the playing method of part of the unistring rocking the rocker, but preserves the touch and texture of the plush doll; compared with the traditional unistring, the present invention allows the simultaneous playback of multiple sound, and expands the sound range produced by the traditional recital; in addition, the present invention introduces new electronic sound and performance technology on the basis of digital technology.

Description of drawings

FIG. 1 is a block diagram of the hardware structure of the present invention.

FIG. 2 is a circuit schematic diagram of the present invention.

FIG. 3 is a schematic structural diagram of the cloth sensor in the present invention.

In the picture: 1. Upper fabric, 2. Lower fabric, 3. Conductive fabric, 4. Conductive sponge, 5. Resistor, 6. Seam.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings.

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

(a) A Bela electronic interactive controller, running Pure Data code and storing digital and analog monochord sounds, where the Bela electronic interactive controller is an open source embedded computing platform designed for high-quality, ultra-low latency interactive audio While developed, the Bela Electronic Interaction Controller provides stereo audio, analog and digital I/O in a single self-contained package, combining the processing power of a BeagleBoneBlack embedded computer with the timing precision and connectivity of a microcontroller; Pure Data code is An open source visual programming language for audio and video processing.

(b) an absolute direction sensor, which is a sensor that integrates functions such as an accelerometer, a magnetometer, and a gyroscope, and is used to sense the absolute direction, angular velocity vector, acceleration vector, and linear acceleration vector in three-dimensional space;

(c) Several cloth pressure sensors are used to sense the pressure respectively;

Wherein, the Bela electronic interactive controller and the absolute direction sensor are placed on the head of the octopus doll together, and the several cloth pressure sensors are sewn inside the claws of the octopus doll.

The absolute orientation sensor adopts the chip Adafruit 9-DOF Absolute Orientation IMUFusion Breakout-BNO055.

As shown in FIG. 3 , the fabric pressure sensor is made of upper layer fabric 1, lower layer fabric 2 and conductive sponge 4 sandwiched between them through seam 6. On the upper layer fabric 1 and lower layer fabric 2, There are conductive fabrics 3 with the same position and area, wherein a resistor is connected in the area where the conductive fabric 3 is not provided on the lower fabric 2 . The conductive fabric is made of conductive fibers added to the traditional fabric structure to make it conductive. After combining with the conductive sponge, the pressure acting on the surface can change the resistance value, thereby serving as a pressure sensor to sense the pressure.

Six cloth pressure sensors are used, which are correspondingly arranged inside the six claws of the octopus doll.

There are two buttons on the two eyes of the head of the octopus, which are used as the sound control switch and the initial value reset switch of the absolute direction sensor, respectively. The Bela electronic interactive controller is electrically connected to the absolute orientation sensor.

The bottom of the octopus doll is preset with an interface for connecting external power and audio.

The working principle of the invention: the absolute direction sensor and the cloth pressure sensor transmit the sensed value to the Bela electronic interactive controller in real time; the Bela electronic interactive controller runs the code of PureData, and stores the digital and analog monophonic sound, when the cloth is received After the trigger signal of the 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 sound through the change of the set of values. Play the pitch of the sound; when the new digital musical instrument Octopus is connected to the power supply and the sound, the player can trigger six different high-pitched monochord analog sounds by squeezing six octopus claws. The greater the squeezing force, the greater the volume; While the sound is being triggered, the player can change the pitch by shaking the octopus' head.

Claims (6)

1. Novel digital musical instrument octopus musical instrument, its characterized in that, including the doll of an octopus shape, it has inlayed at doll inside:

(a) a Bela electronic interactive controller, which runs the Pure Data code and stores the digital analog single-string musical instrument sound;

(b) an absolute direction sensor for sensing an absolute direction, an angular velocity vector, an acceleration vector, and a linear acceleration vector in a three-dimensional space;

(c) the cloth pressure sensors are respectively used for sensing the pressure;

wherein, the head of octopus doll is arranged in jointly to Bela electronic interaction controller and absolute direction sensor, a plurality of cloth pressure sensor is made inside the claw of octopus doll.

2. The novel digital musical instrument octopus organ as claimed in claim 1, wherein: the Absolute direction sensor adopts a chip Adafruit 9-DOF Absolute organization IMU Fusion Breakout-BNO 055.

3. The novel digital musical instrument octopus organ as claimed in claim 1, wherein: the cloth pressure sensor is formed by sewing an upper layer cloth (1), a lower layer cloth (2) and a conductive sponge (4) clamped between the upper layer cloth (1) and the lower layer cloth (2) through a seam (6), the upper layer cloth (1) and the lower layer cloth (2) are provided with conductive cloths (3) with the same positions and areas, and a resistor is connected in an area where the conductive cloth (3) is not arranged on the lower layer cloth (2).

4. A novel digital musical instrument octopus organ as claimed in claim 1 or 3, characterized in that: six cloth pressure sensors are adopted and correspondingly arranged inside six claws of the octopus doll.

5. The novel digital musical instrument octopus organ as claimed in claim 1, wherein: two buttons are arranged at the positions of two eyes of the head of the octopus doll and are respectively used as a sound control switch and an initial value reset switch of the absolute direction sensor, and the sound control switch and the initial value reset switch of the absolute direction sensor are electrically connected with a Bela electronic interaction controller and the absolute direction sensor in the head of the octopus doll.

6. The novel digital musical instrument octopus organ as claimed in claim 1, wherein: the bottom of the octopus doll is preset with an interface for connecting an external power supply and a sound box.

Images