[Contributing to Industrial Noise Reduction] Quick Compliance with the New International Standard: Acoustic Power Level Measurement Achieved
Ono Sokki Co., Ltd. will release the 'O-Solution DS-5000 Acoustic Power Level Measurement System' on April 23, 2026. It is one of the first to comply with the newly revised ISO 3744:2025 standard.
📋 Article Processing Timeline
- 📰 Published: April 24, 2026 at 00:00
- 🔍 Collected: April 23, 2026 at 15:31
- 🤖 AI Analyzed: April 23, 2026 at 16:26 (54 min after Collected)
Ono Sokki Co., Ltd. (President: Yuji Okoshi), a manufacturer and seller of electronic measurement instruments, will launch the "O-Solution DS-5000 Acoustic Power Level Measurement System," which contributes to noise reduction in all kinds of industrial products, starting Thursday, April 23, 2026.
O-Solution DS-5000 Acoustic Power Level Measurement System
See Details
This system is a measurement system upgrade that combines the application software "OS-0541 Sound Pressure Method Acoustic Power Level" released in February 2024 and the acoustic vibration analysis system "O-Solution DS-5000." It is one of the first to comply with the international standard ISO 3744:2025, which was revised for the first time in 15 years. In addition, through broadband measurement that exceeds the scope of the standard, it supports a wide frequency range of measurements, from low-frequency noise in construction machinery and compressors to high-frequency noise in motors and inverters, which are challenges in the automotive field. Furthermore, because it easily visualizes noise sources and frequency peaks, it streamlines analysis work and contributes to a reduction in engineering hours.
*Acoustic power level: An index indicating the total amount of energy radiated by a sound source. It can be evaluated as an absolute noise value without being affected by the measurement location or environment. This value is a global indicator widely used for environmental labels (Eco Mark, Blue Angel), noise regulations, and as a value indicating operational noise in product catalogs. The measurement method is determined by international standards.
[3 Key Points]
- Complies with the latest international standard ISO 3744:2025.
- Capable of calculating acoustic power levels covering a broader band (low and high frequencies) than the standard.
- Features FFT analysis and sound pressure level distribution display to intuitively grasp the source and cause of noise.
[Target Markets]
- Products requiring extreme quietness, such as office equipment, air conditioners, and home appliances.
- Next-generation mobility where high-frequency bands are an issue, such as eAxles installed in EVs.
- Equipment dominated by low-frequency bands, such as construction machinery, generators, and outdoor mechanical devices.
[Development Background]
Because the acoustic power level can be measured as the total energy of sound emitted by equipment, it is widely used as an indicator of the actual operating noise of equipment and as a guideline for noise reduction. This measurement method is stipulated by international standards, and for equipment distributed domestically and internationally, such as air conditioners, office equipment, and automobile parts, highly reliable measurement in accordance with the latest standards is essential. Therefore, this system promptly complied with the latest international standard ISO 3744:2025, which was revised for the first time in 15 years. Customers can conduct highly reliable measurements according to the latest standards.
Introduction page: https://www.onosokki.co.jp/HP-WK/products/keisoku/data/os_ds/ds5000_osolution_power.htm
See Details
[Overview of Standard Revision]
Multiple international standards are set for measuring acoustic power levels, depending on the required accuracy (grade) and measurement environment. Among them, ISO 3744 is the most frequently cited practical method (Grade 2) standard, and its typical method involves measuring at 10 points on a hemisphere.
This ISO 3744 was revised in December 2025. In this revision, complex regulations were organized, and the main text of the standard was simplified. At the same time, changes were made to the test environment and the criteria for determining background noise. (For a summary of the revisions, please refer to our website).
[Features]
● Complies with the latest international standard ISO 3744:2025
Measurements of the acoustic power level, an international indicator, can be made according to the latest standards.
You can easily execute measurements in line with the standard and output reports.
Software screen image and report output
● Supports calculation up to 20 kHz in 1/3 octaves
It supports a wider frequency range than the standard frequency range (100 Hz to 10 kHz) *1. It can cover everything from low-frequency to high-frequency sounds, and can also be used for customers' unique shipping inspections and quality checks.
● Contributes to cause analysis of concerning noise
Simultaneous recording
FFT, instantaneous acoustic power level calculation *2
Sound pressure level distribution display
This system can perform acoustic power level measurement and cause analysis with a single software. By observing acoustic power levels that are more detailed than the standard's per-octave results, it is possible to efficiently identify frequency peaks, timing, and sound source locations that cause the sound. Cause analysis can be performed without the hassle of re-measuring, leading to a reduction in noise testing costs.
Image of cause analysis
See Details
[Supported International Standards]
Complies with sound pressure method acoustic power level standards using microphones. Supported as an additional option.
O-Solution DS-5000 Acoustic Power Level Measurement System
See Details
This system is a measurement system upgrade that combines the application software "OS-0541 Sound Pressure Method Acoustic Power Level" released in February 2024 and the acoustic vibration analysis system "O-Solution DS-5000." It is one of the first to comply with the international standard ISO 3744:2025, which was revised for the first time in 15 years. In addition, through broadband measurement that exceeds the scope of the standard, it supports a wide frequency range of measurements, from low-frequency noise in construction machinery and compressors to high-frequency noise in motors and inverters, which are challenges in the automotive field. Furthermore, because it easily visualizes noise sources and frequency peaks, it streamlines analysis work and contributes to a reduction in engineering hours.
*Acoustic power level: An index indicating the total amount of energy radiated by a sound source. It can be evaluated as an absolute noise value without being affected by the measurement location or environment. This value is a global indicator widely used for environmental labels (Eco Mark, Blue Angel), noise regulations, and as a value indicating operational noise in product catalogs. The measurement method is determined by international standards.
[3 Key Points]
- Complies with the latest international standard ISO 3744:2025.
- Capable of calculating acoustic power levels covering a broader band (low and high frequencies) than the standard.
- Features FFT analysis and sound pressure level distribution display to intuitively grasp the source and cause of noise.
[Target Markets]
- Products requiring extreme quietness, such as office equipment, air conditioners, and home appliances.
- Next-generation mobility where high-frequency bands are an issue, such as eAxles installed in EVs.
- Equipment dominated by low-frequency bands, such as construction machinery, generators, and outdoor mechanical devices.
[Development Background]
Because the acoustic power level can be measured as the total energy of sound emitted by equipment, it is widely used as an indicator of the actual operating noise of equipment and as a guideline for noise reduction. This measurement method is stipulated by international standards, and for equipment distributed domestically and internationally, such as air conditioners, office equipment, and automobile parts, highly reliable measurement in accordance with the latest standards is essential. Therefore, this system promptly complied with the latest international standard ISO 3744:2025, which was revised for the first time in 15 years. Customers can conduct highly reliable measurements according to the latest standards.
Introduction page: https://www.onosokki.co.jp/HP-WK/products/keisoku/data/os_ds/ds5000_osolution_power.htm
See Details
[Overview of Standard Revision]
Multiple international standards are set for measuring acoustic power levels, depending on the required accuracy (grade) and measurement environment. Among them, ISO 3744 is the most frequently cited practical method (Grade 2) standard, and its typical method involves measuring at 10 points on a hemisphere.
This ISO 3744 was revised in December 2025. In this revision, complex regulations were organized, and the main text of the standard was simplified. At the same time, changes were made to the test environment and the criteria for determining background noise. (For a summary of the revisions, please refer to our website).
[Features]
● Complies with the latest international standard ISO 3744:2025
Measurements of the acoustic power level, an international indicator, can be made according to the latest standards.
You can easily execute measurements in line with the standard and output reports.
Software screen image and report output
● Supports calculation up to 20 kHz in 1/3 octaves
It supports a wider frequency range than the standard frequency range (100 Hz to 10 kHz) *1. It can cover everything from low-frequency to high-frequency sounds, and can also be used for customers' unique shipping inspections and quality checks.
● Contributes to cause analysis of concerning noise
Simultaneous recording
FFT, instantaneous acoustic power level calculation *2
Sound pressure level distribution display
This system can perform acoustic power level measurement and cause analysis with a single software. By observing acoustic power levels that are more detailed than the standard's per-octave results, it is possible to efficiently identify frequency peaks, timing, and sound source locations that cause the sound. Cause analysis can be performed without the hassle of re-measuring, leading to a reduction in noise testing costs.
Image of cause analysis
See Details
[Supported International Standards]
Complies with sound pressure method acoustic power level standards using microphones. Supported as an additional option.