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Hi, how do i find total power of signal from a wav file and display it on axes ? I currently only have this. [myRecording,fs] = audioread('filename.wav',[1,2*8000]); %fs = sample r…
I've created a function to detect white edges in an image. This plot is a segment in an image (post processing of my function). The example above has a lot of noise in it, as you c…
Assuming I have two output signals measured from two different power supplies, I want to compare the noise-levels of these output signals to find out which one of them the noisie…
When I use the resample function, I get a dimension error. Here is the example used in the MATLAB help file, with the output: fs1 = 10; % Original sampling frequency in Hz t1 = 0:1…
Why do I receive different results when comparing a digital filter designed using the BUTTER and BILINEAR functions in the Signal Processing Toolbox? Using the following specificat…
How do I go about designing a filter with a very narrow passband? I have some data that was sampled at 10KHz for 500ms. The signal is extremely noisy and I only want the 60Hz compo…
I'm using designFilt to make a simple bandpass filter for some data before doing further analysis: myfilt = designfilt('bandpassfir','FilterOrder',20, 'CutoffFrequency1',0.1,…
Hi everyone! I'm working on a sound localization project in which I record two audio signals simultaneously and then take their 'cross correlation' to find out the "lags" existin…
According to matlab's filtfilt documentation, it can receive several arrays (depending in which representation; a-b, sos-k-g; you are using) and a filter object. However if I t…
I have a 3 column matrix, xyK, that contains x and y coordinates and the value of curvature at each of those coordinates. I'm trying to find the peak values of curvature and the co…