User jojeck

52 votes

Accepted

Meaning of Hilbert Transform

answered Sep 15, 2015 at 14:58

30 votes

Accepted

How do I manually plot the frequency response of a bandpass Butterworth filter in MATLAB without freqz function?

answered Jun 17, 2014 at 8:04

26 votes

Accepted

Cepstral Mean Normalization

answered Dec 10, 2014 at 11:03

23 votes

Accepted

Calculation of Reverberation Time (RT60) from the Impulse Response

answered Jun 30, 2014 at 8:24

21 votes

Accepted

What should be the correct scaling for PSD calculation using $\tt fft$

answered Jul 20, 2016 at 9:06

20 votes

Accepted

Why do I have frequency leakage in DFT after zero padding if frequency resolution is fine?

answered Jul 15, 2016 at 11:48

19 votes

Accepted

What kind of filter is that? Is it IIR?

answered Feb 18, 2015 at 22:27

19 votes

Accepted

Is this a correct interpretation of the DCT step in MFCC calculation?

answered Apr 30, 2014 at 8:13

18 votes

What is spectral entropy?

answered May 27, 2015 at 7:52

16 votes

Accepted

Feature extraction for sound classification

answered Jun 23, 2014 at 11:24

13 votes

Image processing coding

answered May 18, 2014 at 18:40

13 votes

Accepted

Recommendation for book - Writing DSP code in C

answered Mar 4, 2016 at 15:51

13 votes

Accepted

Apply Low pass Butterworth filter in Python

answered May 25, 2018 at 11:04

12 votes

Accepted

STFT: why overlapping the window?

answered Nov 25, 2014 at 9:07

11 votes

Accepted

Feature extraction/reduction using DWT

answered Apr 24, 2014 at 13:29

11 votes

Accepted

FFT to spectrum in decibel

answered Jul 11, 2016 at 14:56

11 votes

Accepted

What's the correct graphical interpretation of a series of MFCC vectors?

answered Apr 1, 2017 at 7:46

10 votes

MATLAB - remove the frequency at zero in FFT

answered May 12, 2014 at 6:48

10 votes

If low frequency travels longer distance, why our speech is not travelling longer distance?

answered May 12, 2014 at 9:28

9 votes

Accepted

Why FFT does not retrieve original amplitude when increasing signal length

answered May 22, 2014 at 19:07

9 votes

Non Uniform FFT / DFT with FFTW?

answered May 29, 2014 at 16:11

9 votes

Accepted

Why are there so many windowing functions?

answered Feb 15, 2015 at 11:27

9 votes

Accepted

Calculating the inverse filter for the (exponential) sine sweep Method

answered Jun 13, 2017 at 16:52

9 votes

Is it accurate to say in digital audio that, when a fader is down, then its value is "-$\infty$"?

answered Aug 9, 2018 at 13:48

8 votes

Sampling Theorem illustration

answered Sep 5, 2015 at 13:52

8 votes

Accepted

The small red peak in the CIE standard observer

answered Aug 17, 2014 at 17:41

7 votes

Accepted

Understanding the Windowing Method in PSD Calculation

answered Aug 3, 2014 at 12:40

7 votes

Mel filter in MFCC - is it necessary?

answered Dec 10, 2014 at 18:41

7 votes

Accepted

K-means for 2D point clustering in python

answered May 26, 2015 at 9:17

7 votes

Under what condition is the available bandwidth $f_s$ instead of $\frac{f_s}{2}$?

answered Jun 3, 2014 at 15:48

Stack Exchange Network

227 Answers

Meaning of Hilbert Transform

How do I manually plot the frequency response of a bandpass Butterworth filter in MATLAB without freqz function?

Cepstral Mean Normalization

Calculation of Reverberation Time (RT60) from the Impulse Response

What should be the correct scaling for PSD calculation using $\tt fft$

Why do I have frequency leakage in DFT after zero padding if frequency resolution is fine?

What kind of filter is that? Is it IIR?

Is this a correct interpretation of the DCT step in MFCC calculation?

What is spectral entropy?

Feature extraction for sound classification

Image processing coding

Recommendation for book - Writing DSP code in C

Apply Low pass Butterworth filter in Python

STFT: why overlapping the window?

Feature extraction/reduction using DWT

FFT to spectrum in decibel

What's the correct graphical interpretation of a series of MFCC vectors?

MATLAB - remove the frequency at zero in FFT

If low frequency travels longer distance, why our speech is not travelling longer distance?

Why FFT does not retrieve original amplitude when increasing signal length

Non Uniform FFT / DFT with FFTW?

Why are there so many windowing functions?

Calculating the inverse filter for the (exponential) sine sweep Method

Is it accurate to say in digital audio that, when a fader is down, then its value is "-$\infty$"?

Sampling Theorem illustration

The small red peak in the CIE standard observer

Understanding the Windowing Method in PSD Calculation

Mel filter in MFCC - is it necessary?

K-means for 2D point clustering in python

Under what condition is the available bandwidth $f_s$ instead of $\frac{f_s}{2}$?