Stetron News

Buffalo, NY, Friday August 3, 2018 :  Stetron is pleased to announce the development of a 520Hz low frequency new miniature loudspeaker designed especially for the Fire Alarm and Protection Industry. This driver is suitable for use in products intended to be compliant to UL217. This low profile driver has a small foot print of 57 … Continue reading “Stetron announces the development of a new 57mm (2.25”) 520 Hz low frequency driver for UL217 applications”

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The basic building blocks for testing an electret condenser microphone for acoustic parameters consist of a sound source, test and measurement software and a means for displaying the results. Stetron’s typical set up for testing ECMs is shown below: To initiate testing, we begin with calibrating our reference microphone using a calibrated B&K sound level … Continue reading “Testing Electret Condenser Microphones (ECM)”

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Stetron has announced a new microspeaker to their product lineup. Found on Stetron.com under part number: P1524008NM101NFR, the new microspeaker is ideal for a wide range of audio needs. Small but Powerful with a high SPL of 90dB, the microspeaker offers a low profile of 3.5mm and is 15x24mm in size. The new Microspeaker is … Continue reading “Stetron Introduces New Microspeaker”

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Human ears have a unique physical structure that affects the perception of sound signals.  In order to evaluate the performance of dynamic receivers close to the real application conditions, the International Telecommunication Union (ITU) has defined special types of ear couplers (also called artificial ears) which can simulate the key acoustic attributes of human ears. … Continue reading “Testing Dynamic Receivers with Ear Couplers”

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