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Featured image for “How We Measure Speaker Performance: Frequency Response and Impedance Testing”

How We Measure Speaker Performance: Frequency Response and Impedance Testing

See how PUI Audio measures speaker frequency response and impedance with calibrated microphones, controlled fixtures, and repeatable SoundCheck testing methods.…

Featured image for “Microphone Characterization Testing for ECM and MEMS Design Validation”

Microphone Characterization Testing for ECM and MEMS Design Validation

Microphone characterization testing verifies how accurately and consistently a microphone converts a known acoustic input into an electrical output. By…

Featured image for “New PUI Audio Exciters Combine Audio Playback and Haptic Feedback in One Compact Component”

New PUI Audio Exciters Combine Audio Playback and Haptic Feedback in One Compact Component

PUI Audio’s newest exciters produce sound and tactile feedback by vibrating the surface they are attached to, allowing sealed panels,…

Featured image for “Lead-Free Piezo Benders: Why a 12 mm Element Matters Before RoHS Exemptions Expire”

Lead-Free Piezo Benders: Why a 12 mm Element Matters Before RoHS Exemptions Expire

A lead-free piezo bender is a compact piezoelectric element used for sound, vibration, sensing, or actuation without depending on conventional…

Featured image for “ECM and MEMS Microphone Port Design: How Port Diameter, Depth, and Cavity Volume Change Frequency Response”

ECM and MEMS Microphone Port Design: How Port Diameter, Depth, and Cavity Volume Change Frequency Response

Microphone port design is not cosmetic. In ECM and MEMS microphones, port diameter, port depth, and cavity volume directly change…

Featured image for “The Frequency – Piezo Bender Fundamentals”

The Frequency – Piezo Bender Fundamentals

Ever wonder how a flat disc can make a loud beep? It all starts here — with a Piezo Bender. …

Featured image for “Sealed Speaker Enclosure Design for Small Speakers (Practical QTC = 0.707 Guide)”

Sealed Speaker Enclosure Design for Small Speakers (Practical QTC = 0.707 Guide)

If you are searching “what enclosure volume should I use for a small speaker?”, the practical answer is: use a…

Featured image for “Quickest Way to Evaluate PUI Pressure Sensors (On Real Hardware)”

Quickest Way to Evaluate PUI Pressure Sensors (On Real Hardware)

If you’re searching “how to quickly test a pressure sensor,” the shortest path is to use our ready-to-run evaluation boards.…

Featured image for “ECM Microphone Operation”

ECM Microphone Operation

An electret condenser microphone (ECM) converts sound pressure into voltage by using diaphragm motion to vary a capacitor, while a…

Featured image for “Innovation in Motion”

Innovation in Motion

Advancing Audio, Haptics, and MEMS Design in 2025 Electronic designs continue to get smaller and more complex, while expectations around…

Featured image for “Audio Haptics: Technologies and Applications”

Audio Haptics: Technologies and Applications

Introduction Haptic technology refers to creating a sense of touch through mechanical feedback, often by vibrations or forces. In audio…

Featured image for “Testing Beyond Waterproof: How Our MEMS Pressure Sensors Prove Their Reliability”

Testing Beyond Waterproof: How Our MEMS Pressure Sensors Prove Their Reliability

Short answer: IP ratings alone don’t predict survivability in chlorinated, hot, humid water. We run a combined-stress protocol—chlorine + hydrostatic…