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"Yuru" Musical Instruments Powered by Spresense
What is "Yuru" Music?
Endorsed by the "World Yuru Music Association"
The "World Yuru Music Association" is an organization dedicated to spreading joy and excitement through musical experiences at various events.
We design a variety of "Yuru" musical instruments that empower individuals of all ages and genders, whether they have disabilities or not, to effortlessly play and initiate jam sessions anytime and anywhere.
It is believed that 70% of the population harbors a hidden desire to play musical instruments, indicating a substantial potential for business opportunities across various sectors.
The Japanese word "YURU" encompasses a range of nuanced meanings, including free, generous, flexible, and approachable, among others.
Children performing Yuru musical instruments at an event organized by the "World Yuru Music Association" (Japanese only)
What is the Future of Music for All?
Video: YouTube / Bilibili
"Yuru Music Almost All Stars" also play Yuru musical instruments.
Yuru Musical Instrument Introduction: "Ultra Light Saxophone"
The "Ultra Light Saxophone" is a saxophone that is played by humming. It detects the pitch of the user’s voice and produces the corresponding saxophone sound.
"Yuru Music Almost All Stars" performing "Ultra Light Saxophone" (Japanese only)
"Ultra Light Saxophone," Yuru Musical Instrument that everyone can play
Features of the electronic musical instrument "Ultra Light Saxophone"
This instrument can be played solely using the singing voice, eliminating the need to hold any part of the instrument with one’s fingers. This expands the accessibility of the instrument to a wider range of individuals.
Spresense contributes for "Ultra Light Saxophone."
- Spresense has high computing power, enabling edge computing and real-time edge AI processing to detect the pitch of the player’s singing voice.
- Spresense operates on batteries, thanks to its low-power consumption, making the instrument safe, compact, and lightweight.
- Spresense can record and playback audio in high-resolution quality, accurately reproducing the sound of the saxophone based on the detected pitch of the user’s voice.
Hardware
Software
Musical Instrument Production Kit : "Yuru Core"
A kit designed to simplify the process of creating Yuru musical instruments for individuals who are new to instrument development.
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Block Diagram
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Features of "Yuru Core" for Yuru musical instruments
With "Yuru Core," you can effortlessly leverage Spresense's extendability and high-quality audio capabilities.
It’s a musical instrument production kit utilizing an open platform.
Technological details
- Core module for instrument production: It’s an extension board for the Spresense main board dedicated to instrument development.
- A DIY musical instrument kit utilizing 3D data and core module circuits (The data and the circuits will be made available to the public in the future).
In addition, when used with the "ssprocLib" musical instrument development library, input to the sensor can be easily converted into sound.
Musical Instrument Development Library : "ssprocLib"
A library based on the widely used Arduino platform that facilitates the easy conversion of data from various sensors into musical instrument tones.
What is "ssprocLib"?
A library that converts sensor data into sound according to rules
- The sensor data is translated into MIDI messages (note numbers), which then trigger the corresponding sounds.
- This library can be used in the Arduino IDE.
With "Yuru Core" and "ssprocLib," anyone can effortlessly create a Yuru musical instrument.
Signal Processing Flow Chart
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Link to "ssprocLib" (GitHub)
A library for the easy development of musical instruments with Spresense.
The events of Yuru Musical Instrument
"Yuru Musical Instruments Hackathon" was held in Japan and India to develop Yuru Musical Instruments on site.
First event held in India
Yuru Musical Instrument Ideathon & Hackathon IN INDIA (The site is Japanese only.)
Related Link:
IIITB Students Strike Chord to Create Chordizlla and Win Yuru Musical Instrument Hackathon
Second event held in Japan
Yuru Musical Instrument Hackathon 2022 IN OSAKA (Japanese only)
Contact Information
- About Yuru music, "Ultra Light Saxophone," and "Yuru Core"
Please contact us using the inquiry form of the "World Yuru Music Association." (Japanese only)
*Please specify that it is about "Ultra Light Saxophone" or about "Yuru Core." - About Spresense
Please contact us from the "Contact us" tab on our website.
Related Links
"World Yuru Music Association" (Japanese only)
"Yuru Music Almost All Stars" (Japanese only)
FUTURE PROOF (What is the Future of Music for All?)
Spresense Website
Spresense on X (Twitter) (Japanese only)
Spresense on Facebook (Japanese only)
*SPRESENSE is a registered trademark or trademark of Sony Group Corporation or its affiliates.