All Questions
Tagged with fingerprint-recognition fft
6 questions
-1
votes
1
answer
402
views
How to get coordinates(x(time),y(frequency),z(intensity(db))) from spectrogram?
I have created this spectrogram from a wav file. Please have a look:
I want to get the x = time, y= frequency, z=intensity(db) of every pixel of the spectrogram. How can I get these coordinates?
I am ...
- 1
0
votes
2
answers
2k
views
How to develop a spectrogram (2D array) from audio signal?
I have developed a spectrogram in Python using Scipy.Signal.Spectrogram. But I need a complete understanding of data. Here I am not asking about plotting and color ...
- 121
0
votes
2
answers
1k
views
How to get coordinates(x(time),y(frequency)) of spectral peaks from spectrogram?
I have created this spectrogram from a wav file. Please have a look:
As it can be observed clearly that my somewhat spectral peaks are visible. I want to get the x = time, y= frequency of these ...
- 121
1
vote
0
answers
188
views
Feature recognition within a single song
I want to write an algorithm in C++ which is capable of identifying specific features within a single song, e. g. the sound of a drum which is played 100 times during 5 min.
State of the project
So ...
user25945
2
votes
1
answer
1k
views
Dividing Audio signals into Barks Bands
I want to apply the following steps in matlab
1) Read the audio data
2) Apply window function on that data
3) Apply fft on the result of window function
4) Make power spectrum of fft
5) divide ...
- 119
4
votes
1
answer
2k
views
Analysing 2500 frequencies using FFT with an input vector of 2048 samples?
I am currently reading the paper A Highly Robust Audio Fingerprinting System and on page 4 one can read about the technical parameters they use: Sampling rate of 5000 Hz, frames of 2048 samples as ...
- 223