Announcement of the establishment of the Audio Business Division

We will measure and evaluate how loud the standard floor impact is heard in the room below.

Using lightweight and heavyweight impact sound sources (tapping machine and banging machine), the floor being measured is excited to generate impact sound, and the lightweight equivalent sound pressure level and heavyweight maximum sound pressure level are measured directly below. The floor impact sound level is then determined. From these results, the L value is calculated and evaluated.

• Other construction services

We measure and evaluate how much sound is blocked by the building's partition walls and floors.

Generate pink noise in the sound source room, measure the sound pressure levels on the source side and the receiving side, and determine the inter-room sound pressure level difference. From the results, calculate the D value and evaluate it.

• Other construction services

We will design the necessary sash grade for the indoor target values.

It predicts the noise level exposed on the window surface based on the frequency data of the sound source, its position, size, and occurrence frequency, and calculates the necessary sound insulation required to achieve the target value indoors.

• Other construction services

You can easily conduct sound insulation performance tests for building materials at a low cost.

"I want to know the sound insulation performance of building materials under development," "I can't spend too much on costs," "I want to know the results as soon as possible." If you have such needs, please consult us. It has become easy to conduct sound insulation performance tests for building materials at our acoustic laboratory. (The data is not official. Please be sure to use it as reference data.)

• Other construction services

We measure and evaluate the indoor quietness in buildings.

We measure and analyze the road noise that penetrates from outside, as well as the noise generated during the operation of elevators and mechanical parking systems, in order to evaluate the indoor quietness based on the analysis results (such as NC curves).

• Elevator
• Other construction services

Experts in sound provide total support from measurement to countermeasures. Leave the noise control construction for factories to us.

In factories and similar environments, the issue of "sound" has become inseparable. At Environmental Research, we provide comprehensive support from noise control measures for equipment to the design and construction of soundproof walls, solving sound-related problems.

• Other construction services

We will measure the reverberation time of the music room, gymnasium, conference room, and other spaces.

Sound sources are generated from the speakers, and data is recorded from microphones placed in several locations within the room. From the analysis results, the reverberation time of the room is calculated.

• Other construction services

PERI products are used at construction sites around the world. This time, we would like to introduce the construction work of the "Dunajec Road Bridge" spanning the Dunajec River in the town of Nowy Targ in southern Poland. The road bridge was planned to be constructed using a balanced cantilever method, dividing the cantilever beams starting from each pier into 10 segments. A particular concern was to strictly adhere to the concrete pouring cycle for each segment. To achieve this, a balanced cantilever carriage (VBC) equipped with a hydraulic advance system and an automatic formwork stripping function was adopted. By utilizing the VBC, it became possible to pour concrete for segments up to a maximum length of 5 meters in a single cycle, allowing for efficient and timely construction. PERI products: 1. TRIO Panel Formwork 2. VARIO GT24 Wall Formwork 3. PERI UP Flex Modular Scaffold 4. VST Heavy-Duty Shoring Tower PERI Japan Co., Ltd.

At a major purchasing specialty store located in Kanagawa Prefecture, we have introduced our commercial aroma diffuser rental service "MajestaFragrance," enhancing the store's atmosphere with fragrance. Installed models: MFmini (4,400 yen per month) × 2 units Adopted fragrance: Freesia Pear To ensure that customers visiting the store can relax during their appraisal and consultation time, we have implemented space branding with a "refined and approachable scent." The fragrance used is "Freesia Pear," which pleasantly spreads the freshness of fruity pear and the vibrant aroma of freesia. It warmly welcomes customers with a clean and high-quality scent. The "MFmini" introduced this time is a compact yet powerful diffuser known for its strong diffusion capabilities. It blends smartly into limited installation spaces such as reception counters and customer service areas, efficiently delivering fragrance. At Majesta Fragrance, we offer optimal diffuser models and fragrance suggestions tailored to the size of the store, type of business, and interior atmosphere. A "free trial installation" is also available before signing a contract.

Hotron Inc. has launched its new product, the "Vehicle Count Sensor CCS3"! This product is a ceiling-mounted sensor that combines infrared and radar technology. It reliably detects vehicles in both directions with a single unit, accommodating traffic during congestion and vehicle passing, thus achieving efficient occupancy management in large parking lots. Additionally, it can be utilized for exit warning purposes in addition to vehicle counting, contributing to the safe and smooth operation of parking facilities. 'Features' - Improved detection performance against changes in road surface during rainy weather by using both infrared and radar. - Equipped with IP67 waterproof and dustproof performance, making it effective even in salt damage areas. - Various settings can be configured from a dedicated app (for Android devices), with current settings easily visible at a glance. - The base dimensions are the same as the previous model "CCS2," allowing for smooth replacement of existing equipment. *For more details, please refer to the product information, catalog download, or contact us.*

We will be exhibiting at the "Osaka Industry Exhibition 2026" held at MyDome Osaka from October 14 (Wednesday) to 15 (Thursday), 2026. We will introduce our stress check, health management system, reservation and reception system, and interview system.

We have published the latest issue (Issue 94) of the ISO-related information magazine "Intertek News." Intertek News delivers information and various topics related to ISO audits, certifications, and verifications. The feature of this issue is titled "Understanding Standard Revisions," where we introduce key points of management system standard requirements that new personnel should first understand in preparation for standard revisions. Additionally, we have included customer case studies, contributions from auditors, and information on certifications and standards, as well as the latest topics, so please take a look.