The quality of any measurement can only be as good as the instrument used to gather it, and for acoustic measurements, finding a good enough instrument can be surprisingly difficult. Commonly ...

The simultaneous acquisition and measurement of signals from a microphone array presents a variety of challenges to developers seeking to evaluate their designs, says Joe Begin. Today’s smart devices ...

NTI is touting a compact measurement omnidirectional microphone by NTI AG that is intended for test applications. The company said the mic provides Class 1 flatness accuracy for acoustic measurements ...

Brüel & Kjær has launched the 4961 multi-field measuring microphone. The 4961 has a 20 dB(A) noise floor and sensitivity exceeding 60 mV/Pa – enabling it to take accurate measurements in free, diffuse ...

The aeroacoustic laboratory Goettingen (SAG) comprises the advanced aeroacoustic measurement techniques at the Institute of Aerodynamics and Flow Technology in Goettingen including several acoustic ...

Then we moved the measuring microphone 1/2-inch to the side, off center from the sweet spot, and recorded another frequency-response curve. The green curve in Figure 1 shows the first comb ...

Microphone array technology can be used to locate and analyse sound sources on stationary and moving objects. This is an important prerequisite for making modern aircraft engines quieter. Acoustic ...

The LMS hardware will run on virtually any legacy, decade-old, crusty computer which provides a full length ISA bus slot. For laptop use, the PAC4 can provide this external slot capability, and ...