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Signal Processing

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Answer score of 25 or more. This badge can be awarded multiple times.
Awarded 122 times.
Why do we say that "zero-padding doesn't really increase frequency resolution"
Awarded Aug 6 at 19:31
Difference between Discrete Time Fourier Transform and Discrete Fourier Transform
Awarded Jul 7 at 12:07
Intuitive explanation of cross-correlation in frequency domain
Awarded Jun 5 at 9:26
Terminology: spectrum, spectrogram, spectrograph, sonogram, etc
Awarded May 13 at 17:07
Why are Gaussian filters used as low pass filters in image processing?
Awarded Mar 11 at 11:40
Difference between Discrete Time Fourier Transform and Discrete Fourier Transform
Awarded Feb 13 at 14:50
Cepstral Mean Normalization
Awarded Dec 5, 2023 at 15:11
"Complex sampling" can break Nyquist?
Awarded Nov 14, 2023 at 21:35
When concatenating sine waves, how do I phase shift in order to prevent "pops" caused by sudden jumps in amplitude?
Awarded Sep 18, 2023 at 22:18
How/why are the $\mathcal Z$-transform and unit delays related?
Awarded Jun 8, 2023 at 0:31
Wavelet Scattering explanation?
Awarded Jun 6, 2023 at 14:55
What would be an example of something digital which isn't electronic?
Awarded Jun 1, 2023 at 17:40
What are the most common algorithms for adaptive thresholding?
Awarded Mar 24, 2023 at 16:11
Why do we need DFT when we already have DTFT/DTFS?
Awarded Jan 26, 2023 at 12:18
Synchrosqueezing Wavelet Transform explanation?
Awarded Jan 14, 2023 at 15:15
Why are FIR filters still stable even though they contain poles?
Awarded Jan 9, 2023 at 20:42
Algorithm(s) to mix audio signals without clipping
Awarded Nov 13, 2022 at 19:15
Power spectral density vs. FFT bin magnitude
Awarded Sep 4, 2022 at 16:18
low pass filter and FFT for beginners with Python
Awarded Aug 3, 2022 at 21:05
What is the difference between feature detectors and feature descriptors?
Awarded Jul 20, 2022 at 1:21
How can I work on DSP using C/C++?
Awarded May 19, 2022 at 22:41
What effect does a delay in the time domain have in the frequency domain?
Awarded Mar 15, 2022 at 17:41
Hilbert transform to compute signal envelope?
Awarded Feb 5, 2022 at 7:40
Why is the FFT "mirrored"?
Awarded Jan 16, 2022 at 1:41
What sampling frequency should I use if Nyquist is not available?
Awarded Nov 17, 2021 at 21:12
Converting from stereo to mono by averaging
Awarded Oct 31, 2021 at 6:32
What is the phase and magnitude response of white noise?
Awarded Aug 25, 2021 at 20:43
Fast Cosine Transform via FFT
Awarded Jul 14, 2021 at 19:11
Gaussian Blur - Standard Deviation, Radius and Kernel Size
Awarded May 25, 2021 at 19:32
Why do we use keypoint descriptors?
Awarded May 6, 2021 at 18:47
Digital filter design basic principles (IIR/FIR)
Awarded Apr 30, 2021 at 2:57
Does the Nyquist frequency of the cochlear nerve impose the fundamental limit on human hearing?
Awarded Apr 10, 2021 at 14:35
What is an algorithm to re-sample from a variable rate to a fixed rate?
Awarded Feb 26, 2021 at 22:19
What are advantages of having higher sampling rate of a signal?
Awarded Feb 21, 2021 at 10:42
What is the difference between phase delay and group delay?
Awarded Feb 20, 2021 at 4:58
Algorithm(s) to mix audio signals without clipping
Awarded Feb 5, 2021 at 16:57
What is the difference between a Fourier transform and a cosine transform?
Awarded Feb 5, 2021 at 8:12
Why is a linear phase important?
Awarded Jan 12, 2021 at 21:43
What should be considered when selecting a windowing function when smoothing a time series?
Awarded Jan 6, 2021 at 20:36
Autocorrelation in audio analysis
Awarded Dec 6, 2020 at 21:06
Why is a linear phase important?
Awarded Oct 23, 2020 at 3:55
How to Extract High Frequency and Low Frequency Component Using Bilateral Filter?
Awarded Oct 14, 2020 at 11:50
Stationary vs non-stationary signals?
Awarded Oct 12, 2020 at 7:36
Why can so little digital information be stored on a cassette tape?
Awarded Oct 6, 2020 at 19:36
What is the difference between a Fourier transform and a cosine transform?
Awarded May 7, 2020 at 21:50
Variance of White Gaussian Noise
Awarded May 7, 2020 at 11:36
Why is TV static noise always black and white?
Awarded Mar 23, 2020 at 19:20
The difference between convolution and cross-correlation from a signal-analysis point of view
Awarded Mar 17, 2020 at 4:10
How to create a sine wave generator that can smoothly transition between frequencies
Awarded Mar 7, 2020 at 14:40
Kalman filter for position and velocity: introducing speed estimates
Awarded Feb 21, 2020 at 9:40
How many taps does an FIR filter need?
Awarded Feb 12, 2020 at 20:55
How to mimic/copy/fake someone's voice?
Awarded Feb 12, 2020 at 10:15
What is the most lucid, intuitive explanation for the various FTs - CFT, DFT, DTFT and the Fourier Series?
Awarded Jan 5, 2020 at 4:45
Help calculating / understanding the MFCCs: Mel-Frequency Cepstrum Coefficients
Awarded Dec 13, 2019 at 12:20
List of possible image features for content based image retrieval
Awarded Sep 18, 2019 at 5:25
How do I manually plot the frequency response of a bandpass Butterworth filter in MATLAB without freqz function?
Awarded Aug 14, 2019 at 11:55
“The Fourier transform cannot measure two phases at the same frequency.” Why not?
Awarded Aug 6, 2019 at 15:10
How to perform carrier phase recovery in software?
Awarded Apr 26, 2019 at 13:05
Overlap-Add versus Overlap-Save
Awarded Mar 25, 2019 at 8:55
Why should I zero-pad a signal before taking the discrete Fourier transform?
Awarded Feb 4, 2019 at 10:40
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