Turning the dial slowly, you can 'hear' when a tumbler drops in, because the spectrum of the sound will be very slightly different than turning one 'normal' tick (depending on the build quality of the safe or combination lock). The PRO version (below) enables you to pause sampling, reset peak hold and export audio snapshot data to clipboard in CSV format and is ad-free!Īnother use case would be to help you get into a safe or combination lock for which you have forgotten the code: Use the spectrum analyzer with your device acoustically coupled to the safe's dial - for mechanical tumblers only. This FREE version of the app is ad-supported. As people age over 20 years, their aural perception range drops well below 21 kHz Measuring audio signals just outside human perception.Identifying audio signals obscured to the human ear by noise.Sound checking venues PA systems and in-car stereos.Assessing environmental noise for health and safety.Speccy has a number of applications, such as: It uses Fast Fourier Transform signal processing and the PRO version is the only app on the market which also allows you to export audio snapshot data to the clipboard (for plotting in Excel, etc). Speccy is an Audio Spectrum Analysis tool, which visualizes the spread of sound frequencies in the audible (and inaudible) spectrum, detected through your device's microphone. Turn your phone into a Spectrum Analyzer. A fast microphone Spectrum Analysis tool using FFT audio signal processing.
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