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 ...

Spectroscopy is a key tool for identifying chemical compounds and analyzing molecular structures. Learn how to read and ...

[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.

A detector then measures the intensity of the light after it has interacted with the sample. The resulting signal, an interferogram, is a complex pattern that, through Fourier Transformation, is ...