Koestation® Adopted for "Oto-navi" Audio-Equipped Information Signboards
AI's voice synthesis technology adopted for information signboards at highway rest facilities.
📋 Article Processing Timeline
- 📰 Published: March 28, 2026 at 00:28
- 🔍 Collected: March 28, 2026 at 21:59 (21h 31m after Published)
- 🤖 AI Analyzed: April 15, 2026 at 02:24 (412h 25m after Collected)
AI Inc. (Headquarters: Bunkyo-ku, Tokyo; President & CEO: Shinichi Hiroi; Securities Code: 4388; hereinafter "AI") is pleased to announce that its Koestation voice synthesis has been adopted for the "Oto-navi" audio-equipped information signboards sold by Nihon Road Maintenance Co., Ltd. "Oto-navi" is currently installed mainly at highway rest facilities throughout Japan, providing guidance and alerts to facility users in multiple languages.
The technology has now been adopted for AI voice synthesis in new equipment installed in the Shikoku area.
About the "Oto-navi" Audio-Equipped Information Signboard
"Oto-navi" is an audio-equipped information signboard featuring high-quality sound, high directionality, and multilingual support. It is used in various situations, including announcements during toilet cleaning, prevention of illegal dumping, and encouraging hand sanitization for rest facility users.
In response to the recent increase in foreign tourists, it provides multilingual support to ensure that travelers can use the facilities with peace of mind, contributing to a language barrier-free environment.
"Koestation" was adopted as the AI voice synthesis capable of multilingual support. In addition to natural and smooth Japanese speech from the new DNN voice synthesis, it also supports English, Chinese, and Korean voices.
■ "Oto-navi" Product Page
https://www.nihon-road.co.jp/service/product/
From the Project Manager
【Regarding Feedback After Installation】
On-site checks after installation confirmed that the audio alerts are clearly communicated to rest facility users and are functioning effectively in operational use.
We have also received feedback from purchasers of "Oto-navi" that it provides sufficient effect for its installation cost and is highly evaluated for its cost-effectiveness.
【Comment from the Manager】
By adopting your company's voice technology for our "Oto-navi" signboard, we have been able to significantly improve the quality of information transmission on-site.
In actual operation, we have received feedback that information is being conveyed to users in an easy-to-understand manner.
Moving forward, we intend to leverage these features to further expand the use of audio guidance tailored to various facilities and on-site environments.
About Nihon Road Maintenance Co., Ltd.
