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Audio FFT Filter, noisy clicks
https://www.dsprelated.com/thread/4255/audio-fft-filter-noisy-clicks#:~:text=%2A%20use%20fftwf%20%282048%20points%29%20to%20get%20circular,only%2C%20ignore%20imaginary%29%20%2A%20send%20to%20audio%20device
fft - FFTW audio artifacts when modifying magnitudes in ...
https://dsp.stackexchange.com/questions/70287/fftw-audio-artifacts-when-modifying-magnitudes-in-frequency-domain
I'm currently working with FFT (FFTW3) that I'm using to apply treatments on audio files frequencies. The Forward/Backward test is passed, since I can get the exact same soundfile when processing IFFT. So I assume my implementation is clean. The thing for which I'm not an expert is to treat data then.
audio - How to extract frequency information from …
https://stackoverflow.com/questions/3058236/how-to-extract-frequency-information-from-samples-from-portaudio-using-fftw-in-c
To convert your audio samples to a power spectrum: if your audio data is integer data then convert it to floating point; pick an FFT size (e.g. N=1024) apply a window function to N samples of your data (e.g. Hanning) use a real-to-complex FFT of …
c - Computing the discrete fourier transform of audio …
https://stackoverflow.com/questions/39839391/computing-the-discrete-fourier-transform-of-audio-data-with-fftw
I have download and installed FFTW for windows. The documentation is ok but I still have queries. My overall aim is to capture raw audio data sampled at 44100 samps/sec from the sound card on the computer (this task is already implemented using libraries and my code), and then perform the DFT on blocks of this audio data.
FFTW Home Page
An audio interview of the FFTW authors is available from the RCE podcast program. Downloading Versions 3.3.10 and 2.1.5 of FFTW may be downloaded from this site. Feel free to post FFTW on your own site, but be sure to tell us so that we can link to your page and notify you of updates to the software. Literature. BibTeX file of FFTW references.
FFTW - Tutorial
http://fftw.org/fftw2_doc/fftw_2.html
{ fftw_plan plan; char *wisdom_string; FILE *input_file; /* open file to read wisdom from */ input_file = fopen("sample.wisdom", "r"); if (FFTW_FAILURE == fftw_import_wisdom_from_file(input_file)) printf("Error reading wisdom!\n"); fclose(input_file); /* be sure to close the file! */ /* create a plan for N=64, possibly creating and/or using wisdom */ …
C++ Tutorial: Computing the 1-D FFT using the FFTW …
https://www.youtube.com/watch?v=CMyG4hsKCJo
This video demonstrates how to compute the 1-D FFT using the FFTW library on Ubuntu/Linux in C++. In the first method, Qt Creator is used. In the second, the...
GitHub - francisengelmann/sound: Some tools to …
https://github.com/francisengelmann/sound
Some tools to visualize audio input using OpenAL and FFTW - GitHub - francisengelmann/sound: Some tools to visualize audio input using OpenAL and FFTW
Adding an FFT plot to the QT Audio Input program
https://svenssonjoel.github.io/pages/qt-audio-fft/index.html
Adding FFT using the FFTW3 library to the Qt audio input program This program is based upon the earlier Audio input using Qt and QAudioInput text and adds a second QCustomPlot that will be displaying the discrete Fourier transform (DFT) of the audio in a 2 second sliding window. To compute the DFT, the FFTW3 library will be used.
Sound input and fft in Qt - YouTube
https://www.youtube.com/watch?v=b5xZSmn_JAQ
sound input in a Qt app and application of DFT using FFTW with plotting using QCustomplot. More info here: http://svenssonjoel.github.io/pages/qt-audio-fft/i...
GitHub - daniel-j/unicorn-fft: Audio visualization on the ...
https://github.com/daniel-j/unicorn-fft
This project uses code from raspberry-vu which is a fork of Impulse, which I base my FFTW function calls on. Also special thanks to Damien for his guide FFT Averages, which makes it all prettier!
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