I am currently using the following matlab function: function out = fft_2d(in) out = fftshift(fft2(ifftshift(in)));
I need to read the audio streaming and determine 开发者_开发问答generated ultrasounds How can I find a certain sequence of sounds from streaming audio?
100 periods have been collected from a 3 dimensional periodic signal. The wavelength slightly varies. The noise of the wavelength follows Gaussian distribution with zero mean. A good estimate of the w
I have FFT outputs that look like this: At 523 Hz is the maximum value. However, being a messy FFT, there are lots of little peaks that are right near the large peaks. However, they\'re irrelevant,
I am trying to compute the FFT and then the IFFT just to try out if I can get the same signal back but I am not really sure how to accomplish it.This is how I do the FFT:
I read that several DSP cards that process audio, can calculate very fast Fourier Transforms and some other functions involved in Sound processing and others. There are some scientific problems (not m
Does anyone know how to use filters in MATLAB? I am not an aficionado, so I\'m not concerned with roll-off characteristics etc — I have a 1 dimensional signal vector x sampled at 100 kHz, and I want
First of all I\'d like to state that my question is not per say about the \"classic\" definition of voice recognition.
I\'m working on implementing an FFT algorithm in assem开发者_如何学Cbly on an 8-bit microcontroller (HCS08) for fun. Once the algorithm is completed, I\'ll have an array of 8-bit real/imaginary pairs,
If I have a system of a springs, not one, but for example 3 degree of freedom system of the springs connected in some with each other. I can make a system of differential equations for but it is impos
加载中,请稍侯......