Category Archives: Uncategorized

Analysis of transient signals requires extra thought and care. The main challenges are: Avoiding overloads Editing files correctly to prevent artifacts Understanding Filter settling times Properly scaling to make comparisons possible. 3D Measurements: Spectra as a Function of Time. Fortunately, … Continue reading →

noiseLAB 4 can now support NI 9250 giving about a 13 dB lower noise floor than with NI 9233 or 9234.  The typical A-weighted noise floor with a 50 mV/Pa half-inch instrumentation microphone is about 20 dB (A) Before you upgrade, … Continue reading →

A cool Danish research proposal…from DELTA, a part of FORCE Technology. Chip in with your comments on the proposed research proposal (in Danish): Highlights: Enhancing or replacing measurements with digital simulation of the entire chain: Sound Sources: Design and function … Continue reading →

If you are making A, B, or C-weighted Peak sound level measurements with noiseLAB Capture, please note that Capture does not apply these weightings to the Peak value, and always measures it with the Linear weighting, even if you have selected … Continue reading →

Have you ever had trouble adding decibels, and wonder why 0+0=3? Or if you measure a level of 30 dB and the background noise is 20 dB, how much should you correct the measured value? What is the free field … Continue reading →

Current Versions of noiseLAB 4.0.4 and noiseLAB Batch Processor 4.1 run on Windows 10. Please note the following: noiseLAB assumes placement of your project files under Documents\noiseLAB Pro Projects\.  However, Windows, by default does not permit programs to write in … Continue reading →

This half-day course will quickly move you from being a beginner to a power user that works efficiently and confidently with noiseLAB.  We show how you can go from calibration to report ready results in less than three minutes. And … Continue reading →

SPL 2000 is an updated version of exSOUND2000 featuring Greatly improved user interface Updated Sound Source models. The program is sold as an experimental research tool, and requires that the user has a thorough understanding of the Nord2000 model. Existing … Continue reading →

noiseLAB supports up to 8 simultaneous parallel acoustic channels. The following is a guide to configuring this most economically: 2-4 channels: For a noise floor of about 30 dB(A) use one National Instruments USB 9234 with four active microphone channels. … Continue reading →

January 26, 2016: A beta version of noiseLAB Batch Processor has been posted with new features and bug fixes. Also posted is a patch to noiseLAB Capture which makes it possible to read project files which have been moved. You can … Continue reading →