Author Archives: Chenyu Zhao

Hokuyukai Alma Mater Networking Event 2025

Mr. Yuito Ishisaki made a poster presentation entitled “A Measurement of Packet Delivery Rate and Signal Strength in LoRa Communication in Urban and Suburban Areas of Sapporo” at Hokuyukai Alma Mater Networking Event (in Japanese).

Introduction of Media Network Course for Freshmen (Sep. 2025)

On Tuesday, September 30th, an introductory session for freshmen was held. Students from our research laboratory also participated as representatives of the Media Network Course. We provided an overview of the course, explained the research laboratory through panel presentations, and demonstrated equipment to the freshmen.
Here shows contents of demonstration exhibit.

  • Real-time display of flight data using Raspberry Pi and software wireless device (aircraft position tracking)
  • Real-time audio feature visualization system based on FPGA and Raspberry Pi
  • Chapit, a voice recognition robot from Raytron

The Institute of Electronics, Information and Communication Engineers Society Conference 2025

On Spetember 8, D1 student Chenyu Zhao presented the following paper at the 2025 Society Conference held at Okayama University Tsushima campus.

  • Chenyu Zhao, Yuzuki Morikawa, Hiroshi Tsutsui, Takeo Ohgane, “Design of a Streaming-Based Resource-Efficient Mel Filter Bank Architecture for Real-Time Mel Spectrum Extraction on FPGA,” IEICE Society Conference, p. 118, A-14-15, Sep. 2025.

2025 International Symposium on Multimedia and Communications (ISMAC 2025)

At the 2025 International Symposium on Multimedia and Communications (ISMAC 2025), held on Panglao Island from August 20 to 22, Mr. Zhao and Ms. Sakaki delivered the following two presentations.

  • Chenyu Zhao, Hiroshi Tsutsui, Takeo Ohgane, “Design and Implementation of a Real-Time Acoustic Feature Visualization System on Raspberry Pi Platform Utilizing Fixed-Point FPGA-Based Mel Spectrum Extraction,” Proceedings of International Symposium on Multimedia and Communication Technology (ISMAC), Aug. 2025.
  • Haruka Sakaki, Kenshiro Tanaka, Chenyu Zhao, Hiroshi Tsutsui, Takeo Ohgane, “Comparative Evaluation of CNN, VGG16, Conformer, and YAMNet Models for Skateboard Riding Sound Detection,” Proceedings of International Symposium on Multimedia and Communication Technology (ISMAC), Aug. 2025.