ABSTRACT
CHAPTER OUTLINE Periodic Signals........................................................................................................................ 193 FFT analysis..............................................................................................................................194 Data Window Functions........................................................................................................ 195 Overlap ........................................................................................................................................ 197 Other Analyses Based on FFT ..........................................................................................198 Inverse FFT...............................................................................................................................198 Digital Filters.............................................................................................................................198 Background ................................................................................................................................199
FFT is an acronym for “Fast Fourier Transformation.” The purpose of a Fourier
Transformation is to transform waveform (impulse response/waveform) into
frequency. This is a common methodology which is implemented in many
kinds of audio software.