[Simon Inns] just rolled out his latest project, a PIC based spectrum analyzer. He’s using a Fast Fourier Transform routine crafted in C to run as efficiently as possible on the 8-bit chip.

With his project, a 3-axis Open Source FFT Spectrum Analyzer he is not only entering the Hackaday Prize 2016 but also the highly contested field of acoustic defect recognition. For the hardware ...

Fourier analysis may be performed mathematically if the expression f(t) describing the waveform or COMPLEX TONE is known, or else by converting the sound to digital form by a computer which then ...

The LactoScope can thus assess processed, raw and standardized milk, cream, whey and other dairy products. The analyzer includes the state-of-the-art mid-infrared (MIR) technology for a faster ...

The statistical parameters in the time domain were calculated as well as the spectral analysis applying the Fast Fourier Transform (FFT) and Poincare’s graphic analysis (PGA). Results: At rest, H ...