UEC - The University of Electro-Communications


Haruki Hoshino

Mail: hoshinoharuki(at)uec.ac.jp



  • March 2018: Graduated from Yokohama Science Frontier High School

  • August - September 2019: Language training at the University of Washington

  • March 2023: Graduated from the University of Electro-Communications, School of Information and Communication Engineering, Class II Mechatronics, Measurement and Control System Program

  • April 2023: Entered the University of Electro-Communications Graduate School of Information and Communication Engineering, Department of Mechanical Intelligence Systems


Stability determination of adaptive distributed observers on communication network graphs, February 2, 2023.

Certifications and Qualifications

  • Obtained a standard driver's license (January 2022)

  • TOEIC L&R Score: 655 points (March 2022)

Overseas Travel

  • Hawaii, USA (Visited twice during elementary and middle school for vacation)

  • Washington, USA (Visited during the first year of undergraduate studies for language training)

  • Malaysia (Visited during a high school trip)

  • Thailand (Visited as a high school student for vacation)

  • Taiwan (Visited after high school graduation for vacation)

Programming Languages with Experience

  • Ruby

  • C

  • Python

  • R

  • gnuplot

  • LaTeX


Frequently Used Programming Languages

  • LaTeX


Reference Books Being Studied in Spare Time

(In order of priority)

  1. Programming Sound with Python, Ohmsha.

  2. Introduction to Sound Programming, Gijutsu-Hyohron.

  3. Programming Sound Effects: Sound Processing and Synthesis with C, Ohmsha.

  4. Programming Sound with C, Ohmsha.

Part-time Job

Used goods dealer (March 2020 to May 2022)

Job Description

  • Maintenance of used appliances

  • Maintenance of used musical instruments (mainly guitars and basses, occasionally professional audio equipment)

  • General tasks, cash register operation, customer service, product display, etc.

Question: I would like to ask about the maintenance of used musical instruments. What kind of work did you do specifically, and are there any memorable instruments among them?

Answer: Mainly, I did polishing, string replacement, neck adjustment, and tuning. Specifically, for polishing, I used orange oil to polish the fingerboards of guitars and basses, removed fret dirt with abrasives, and polished the body with a cloth. For neck adjustments, I used a truss rod to adjust the curvature of the guitars and basses. Most of the instruments I worked on had more backbow than upbow, so I often adjusted the backbow. For string replacement and tuning, I performed them as the name suggests and adjusted the tuning to the standard (EADGBE). A memorable used instrument was a Gibson double-neck (probably an EDS-1275).

Hobbies, Club Activities, Circles

First year of junior high school

  • Edited library files to install and play Minecraft mods.

  • Built a large bookshelf through DIY.

Second year of junior high school

  • Played with a guitar and compact effectors handed down from my parents. At that time, I first encountered signal processing through compact effectors.

  • Became obsessed with J-Rock and purchased and listened to many CDs.

High school

  • Belonged to the light music club. Became engrossed in playing guitar with an Epiphone Les Paul that my parents bought for me.

  • In my first year of high school, I accidentally saw professional audio equipment in the light music club and became interested. Since then, I struggled with instruction manuals on the train to and from school, touched the equipment, and spent my days immersed in professional audio equipment.

First to third year of undergraduate studies

Belonged to the Synthesizer Design Research Club and did PA work as a hobby. There was more professional audio equipment than in high school, so I enjoyed tinkering with it.

Third to fourth year of undergraduate studies

What is MIKUEC?

MIKUEC is a fan-made live event (an homage to "Magical Mirai") organized by VLL.

My Responsibilities

  • I operated professional audio equipment at MIKUEC 2021 and MIKUEC 2022.

  • As part of my job, I tuned the stage audio. Specifically, I played pink noise and checked FFT analysis results while tuning the venue's acoustics with a graphic equalizer.

  • At the third performance of MIKUEC 2022, I was responsible for operating the audio equipment on site and transmitting the audio signal to the YouTube broadcast.

Scale of MIKUEC

  • About 300 guests were welcomed to each performance, with a total of 3 performances. As a result, we were able to deliver sound to approximately 1000 people (including the broadcast, we believe it reached even more people).

  • Most of the visitors who attended were non-UEC students, coming through Twitter.

Question: What do you think "good sound" is?

Answer: To be honest, I don't have a clear answer to the question of "what is good sound?". However, I believe that there are moments when customers naturally shed tears of emotion when I am able to deliver "good sound". This is my ultimate goal and aspiration.

Professional Audio Equipment I've Used

Mixing Consoles



  • Si Impact, Soundcraft



  • 266xs, dbx




  • 1046, dbx

  • 1066, dbx

Graphic Equalizers

  • A model similar to WZ-AE32 (I forgot the model number because I played with it in high school), PANASONIC (RAMSA)

  • GE1500, MAXON


  • Q2031A, YAMAHA

Channel Dividers

  • 234xs, dbx


  • DriveRack PA2, dbx

Powered Speakers

  • DSR115, YAMAHA

  • DSR215, YAMAHA

  • ZLX-12, ZLX-15, Electro-Voice

Power Amplifiers


  • (I played with it in high school, but I forgot the model number because it was a long time ago), YAMAHA

  • PRO-30, Accuphase


  • P4500, YAMAHA

  • P5000S, YAMAHA


  • An old modified RAMSA subwoofer made by an industrial high school student


Direct Boxes

  • DI-1, BOSS

  • J48, Radial


  • Dynamic microphones such as SM-58, SM-57, and other condenser microphones

  • (I've used various microphones, but I forgot the model numbers.)

  • Cables (XLR cables, phone cables, LAN cables, etc.)