Accurate, effective frequency analysis - source ID + rapid complaint resolution
Video guide to Frequency Master >
We have tested many apps, most of which were not designed by users and hence are overly technical and difficult to use. So we have developed our own... It is available for free on the Google Play Store, just search "Frequency Master Lite" or click here.
These videos are detailed guides to using our free Frequency Master Lite app for narrow band tonal noise analysis, hum analysis and identification (FFT noise analysis). Not that they are necessary, FM is completely intuitive and requires no expertise whatsoever.
The app records a short video clip and provides a live analysis of the sound. This information, the clip and the analysis can then be shared via various services, but typically you would email it to yourself and then forward to a regulator or planner.
Frequency Master calibration and cursors >
Why would anyone use old fashioned 1/3 octaves that are not only poor at identifying tones, from hum to high frequency squeals but that also throw away so much useful identification and diagnostic information when our smartphone FFT app can provide an accurate evaluation?
There can be no valid excuse to rely on subjective impressions or third octaves when tonal noise may be involved.
This is a simple process that dramatically improves noise complaint resolution, source identification and, with our help, BPM/BAT evaluation.
Data Centre (USA "Center") noise evaluation
Worldwide, there is a tidal wave of new data centers built and planned. Noise, especially low frequency (LF) noise (a hum or drone), is a major environmental issue that affects local communities. A key fact is that data centres typically generate low frequency noise in the form of hums that travel for miles and is not accounted for in many ordinances and planning specifications that are predominantly based on dB(A).
Existing: Frequency Master is the answer to the question: "How do we evaluate the noise from existing data centers?" It's now possible for anyone, complainant or regulator, to assess LF hum or drone accurately and to use that information to pinpoint and justify what action should be taken to mitigate.
Planned: Frequency Master is also the answer to the question: "How do we ensure that new data centres will not cause noise complaints?" When consultants generate predictions for noise impact statements, they do not evaluate tones. Part of the reason is that suppliers never provide narrow band noise data. Frequency Master solves this problem too: we ask for an app analysis for a similar installation anywhere on the planet to assess tonal content. Simple and effective.
Mitigation: finally, Frequency Master is also used to determine the precise causes of tonal noise to guide modern engineering noise control technology that can actually improve data center cooling by making fans more efficient (self-financing).
Q: once you've analysed, what next? A: save time...
The results of your instant field narrow band analyses may be all you need. You can determine if there is/isn't a tone. You can then use the app to identify the source(s) by visiting potential plant and matching the complainant tones with each potential source tones there and then to provide definitive proof. Alternatively, if there is no access, plant technical specifications can match the source.
You can then share the results and, if Environmental Agencies or regulators need help with tonal noise source ID or the mitigation options based on current worldwide best practice, then you can contact us to make use of our remote analysis service.
Apple Apps
We will soon be releasing an iOS version of Frequency Master Lite
