- https://www.youtube.com/watch?v=hBTGuOe9txE
- https://6002x.mitx.mit.edu/wiki/view/Week2LabConvolutionofAudioFiles
- https://github.com/kverrier/Convolution
- http://music.tutsplus.com/tutorials/how-to-use-convolution-for-reverb-effects–audio-1089
- https://github.com/mosco/fftw-convolution-example-1D/blob/master/convolution_example.cc
- https://github.com/undees/fftw-example/blob/master/fftw_example.c
- http://www.astro.rug.nl/~vdhulst/SignalProcessing/Hoorcolleges/college03.pdf
- http://www.indiana.edu/~emusic/etext/synthesis/chapter4_convolution.shtml
- https://www.dsprelated.com/code.php?searchfor=convolution
Misc
- https://github.com/rafat/wavelib
- https://github.com/rafat/wavelib/wiki
- https://github.com/berndporr/fir1/blob/master/fir/Fir1.cpp
- http://www.d.umn.edu/~deoka001/Normalization.html
- http://siyumsblog.blogspot.co.id/2012/06/simple-matlab-code-to-add-echo-to-audio.html
- http://www.music.mcgill.ca/~hockman/coursework/MUMT_620/620_final/waon-0.9/
- http://ofdsp.blogspot.co.id/2011/08/short-time-fourier-transform-with-fftw3.html
- http://www.staff.vu.edu.au/msek/frequency%20analysis%20-%20fft.pdf
- https://sestevenson.wordpress.com/implementation-of-fir-filtering-in-c-part-1/
- http://www.gaussianwaves.com/2015/11/interpreting-fft-results-obtaining-magnitude-and-phase-information/
- https://github.com/LCAV/TimeDomainAcousticRakeReceiver
