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hotpaw2
  • Member for 10 years, 10 months
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126 votes
Accepted

Why is it a bad idea to filter by zeroing out FFT bins?

99 votes
Accepted

Why should I zero-pad a signal before taking the Fourier transform?

22 votes
Accepted

What is the true meaning of a minimum phase system?

19 votes
Accepted

Does using the Goertzel algorithm actually give better frequency resolution?

18 votes

Why is the FFT "mirrored"?

16 votes
Accepted

How to circularly shift a signal by a fraction of a sample?

14 votes
Accepted

Why does spectral leakage arise in an FFT?

14 votes

What is meant by a system's "impulse response" and "frequency response?"

14 votes

Why do we say that "zero-padding doesn't really increase frequency resolution"

13 votes

If humans can only hear up to 20 kHz frequency sound, why is music audio sampled at 44.1 kHz?

13 votes

Why is there no FPU on (most) DSP chips?

12 votes

Tips for improving pitch detection

12 votes

Is there an algorithm for finding a frequency without DFT or FFT?

11 votes
Accepted

Removing values from FFT result same as filtering?

11 votes
Accepted

When to consider double (64 bit) floating point for Audio

10 votes

What are the problems with designing an FIR filter using FFT?

10 votes

Meaning of Hilbert Transform

9 votes
Accepted

MATLAB: $\tt fft$ and $\tt ifft$ scaling

9 votes

Audio output quality

9 votes

What is the bandwidth of a (real) sinusoidal tone, and pulse?

9 votes
Accepted

Why are sidebands generated in AM and FM?

9 votes
Accepted

cyclic prefix in ofdm

9 votes

What is convolution of two sine waves (tones)?

8 votes
Accepted

What are poles and zeros?

8 votes

What is phase congruency?

8 votes

Is sinusoids the nature's default signals?

8 votes

How to separate a low amplitude signal of same frequency but different phase

8 votes

What sonic artifacts are caused by phase vocoders?

8 votes

Is up-sampling prior to cross-correlation useless?

8 votes

Auto correlation correspondence to original time domain window

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