Technical discussions related to Audio Signal Processing (digital effects, acoustics, noise reduction, musical signal processing, etc).
Dear all I'd like to know why it could be desirable to shift the time origin to the center of every segment (using "fftshift" on the segment in MATLAB) before doing the FFT in the Short-Time Fourier Transform. In this paper the author says that the phase will be easier to analyze: http://www.cs.princeton.edu/courses/archive/spring05/cos325/Bernardini.pdf (on page 4, section 3.3, fft centering). Yes the phasogram looks better, but does the shift have any other implications for the frequency domain processing? Thanks for reading this;) Cheers / MA