Electroacoustic Testing

Loudspeakers, headphones, microphones and audio electronics IEC 60268

As a UKAS accredited provider of acoustic testing services, our team of experts is dedicated to delivering precise, reliable results, ensuring your products meet the highest standards of acoustic performance.

TEST PURPOSE

IEC 60268 acoustic testing provides a comprehensive framework for evaluating the performance and specifications of electroacoustic equipment, including frequency response, directivity, sensitivity, noise floor, linearity, and crosstalk. For accurate room acoustics measurements, using dodecahedral loudspeakers is common, and it’s important to check the directivity index at least every two years to ensure compliance with tolerance requirements. Our automated turntable testing system allows fast, efficient, and repeatable measurements, often with same-day turnaround, helping manufacturers, acoustic consultants, and engineers maintain reliable performance across a wide range of audio devices.

OUR FACILITY

Our hemi-anechoic chamber is designed for acoustic free-field testing for a wide range of devices and equipment. This is a highly controlled environment that allows the measurement of your device to be unaffected by reverberation and background noise. With a background noise level of 8.8 dBA, the sound pressure levels between 100 Hz – 10 kHz are actually below the threshold of hearing, making this specialist facility ideal for testing the noise floor of very quiet devices.

METHOD

The device is mounted and operated following the requirements of IEC 60268, using standardised test signals and measurement parameters to ensure reproducible and comparable results across laboratories. This allows manufacturers and acoustic engineers to verify that technical specifications such as frequency response, sensitivity, and directivity meet defined standards. For quality control or bespoke testing, custom tolerance limits can be programmed into our automated data acquisition system, providing precise, repeatable measurements tailored to your product requirements.

RESULTS

Results are provided in a detailed report containing all the information you need regarding the installation, testing methodology and performance specifications of your device. As a research laboratory, we are also in an excellent position to provide bespoke data analysis and reporting options to support product development or product comparison.

OTHER TESTING AVAILABLE

Sound insulation testing – ISO 10140-2
Medical devices (Noise and Vibration) – IEC 60601-1
Occupational vibration – ISO 5349
Absorption coefficient testing – ISO 10534-1
Insertion loss for hearing defenders – ISO 4869

Don’t see what you need in this list? Get in touch to enquire about our full testing capabilities

SPECIALIST TEST EQUIPMENT

Amongst our extensive array of acoustic measurement equipment, we also have specialised test equipment typically utilised for R&D and QC, including stock of the following:

Laser doppler vibrometer; Head and Torso Simulator; Force transducer; Accelerometers; Electrodynamic shaker; Acoustic intensity probe; Reference sound power source; Artificial ear

TECHNICAL TRAINING

The expert team at KP Acoustics Research Labs spent a combined 30+ years in the education sector designing, managing and delivering undergraduate and postgraduate degree courses, as well as accredited and bespoke professional courses. Let us help your first-line support, technical advisors, design consultants, sales and marketing teams promote confidence in your products and services by fully understanding the terminology and underpinning concepts behind the acoustic performance, compliance requirements, and practical applications relevant to your industry.

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    We’d love to welcome you to KP Acoustics Research Labs! Take a tour of our facility, meet our expert team, and see how we can support your product testing, design, and research projects. Explore the latest in acoustics and audio innovation, and discover how our services could help bring your ideas to life. Register your interest to arrange a visit and hear about our upcoming events and seminars.

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