I wish to apply a frequency-domain filter, such as a Low 开发者_运维百科Pass or Band Pass, to each horizontal line of an image. Is this possible using opencv? I think that you will need to elaborate m
I recorded a radio signal into a .wav, I can open it in audacity and see that there is binary data encoded using a开发者_C百科 certain algorithm. Does anyone know of a way to process the signal that i
Implementing a low pass FIR filter, when should one use FFT and IFFT instead of time-doma开发者_C百科in convolution?
I want to make a program that would record audio data using PortAudio (I have this part do开发者_如何学Gone) and then display the frequency information of that recorded audio (for now, I\'d like to di
What I want to do is to have a subroutine that analyses every 200 milliseconds of a sound file which it is given and spits out the frequency intensity value (from 0 to 1 as a float) of a specific freq
I want to implement Fast Fourier Transform algorithm with Hadoop. I know recursive-fft algorithm but I need your guideline in order to impleme开发者_如何转开发nt it Map/Reduce approach. Any suggestion
I\'m just learning to use OpenCV and am having a problem with using DFT. I\'ve d开发者_StackOverflow社区one a signal processing class which used MatLab, so I\'m trying to go through some of the exerci
I\'m looking at the aurioTouch sample application for the iPhone SDK. It has a basic spectrum analyzer implemented when you choose the \"FFT\" option. One of the things the app is lacking is X axis la
I\'ve been playing around a little with the Exocortex implementation of the FFT, but I\'m having some problems.
I\'m wondering what\'s the easiest/best way to determine the magnitude of a given frequency in a sound.
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