What is a spectrogram and how do I set its parameters?
A spectrogram is a visual representation of the Short-Time Fourier Transform. Think of this as taking chunks of an input signal and applying a local Fourier Transform on each chunk.
Terminology: spectrum, spectrogram, spectrograph, sonogram, etc
May 22, 2012 · In term of proper or accepted naming conventions of DSP graphics or instrumentation output, what is the difference between the words spectrum, spectrogram, spectrograph, and similar …
Signal Processing: Can someone explain for me the different type of ...
Jan 15, 2018 · Spectrogram: Splitting a sound into harmonics A spectrogram is a visualization of the frequency spectrum, a breakdown of the sound into pure sinusoids of different frequencies. A …
python - Spectrogram 2D and 3D - Stack Overflow
Mar 15, 2020 · I've created 2D and 3D spectrogram with python scipy. The 2D spectrogram is fully correct, but 3D spectrogram looks wrong, it has additional color blue. What is wrong 3D spec? Here …
FFTs, Spectrograms, and Units - Signal Processing Stack Exchange
Mar 16, 2023 · I am new to signal processing and I have likely a very easy question but I have found inconsistent answers everywhere. When performing an FFT, does it matter what units the amplitude …
Spectrogram in python using numpy - Stack Overflow
Aug 28, 2020 · I need to make spectrogram using numpy. I take 1s of audio and split it into 0.02s chunks. Then I calculate FFT using numpy and put it back together into one image. Results are poor. …
Can I adjust spectogram frequency axes? - Stack Overflow
May 29, 2015 · The MATLAB documentation examples for the spectrogram function gives examples that have the frequency axis set to [0 500]. Can I change this to something like [0 100]? Obviously …
spectrogram - Spectrum of FM signal? - Signal Processing Stack …
Jan 11, 2021 · Why ? What would happen in the simple example of a 2 tones modulating signal ? If a carrier is AM modulated by complex signal like speech, we find the spectrum of modulating signal …
How plot a waterfall of Frequency with python - Stack Overflow
Sep 10, 2018 · Here is an example, the spectrogram is made with scipy.signal.stft, which creates the dft array for us. I'm not detailling helper functions in order to shorten the code, feel free to ask for details …
plot - Create 2D Spectrogram in Matlab - Stack Overflow
Mar 21, 2016 · I am in need of plotting a 2D spectrogram of a signal in Matlab. I need it for a printed assignment, hence the 3D image makes no sense. However, when the signal is plotted using …