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How to pass a audio signal through a filter - MathWorks

    https://www.mathworks.com/matlabcentral/answers/63967-how-to-pass-a-audio-signal-through-a-filter#:~:text=The%20first%20step%20is%20to%20design%20a%20filter,can%20filter%20your%20signal%20using%20the%20function%20filter.
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Filtering out a Specific Sound from a Audio File

    https://www.mathworks.com/matlabcentral/answers/336881-filtering-out-a-specific-sound-from-a-audio-file
    player = audioplayer (data,fs); play (player); a.) Use the DFT to figure out the tone frequencies (at least approximately). List the tone frequencies. b.) Describe how you would remove these unwanted tones in the audio signal using topics covered during this course. c.)

filters - Filtering an Audio File in MATLAB - Signal ...

    https://dsp.stackexchange.com/questions/40871/filtering-an-audio-file-in-matlab
    [s, Fs] = wavread('file.wav'); n = length(s); f = linspace(-n/2, n/2, n)/(n*Fs); S = fftshift(fft(s)/n); filter = zeros(size(S)); f0 = 523; while (f0<(Fs/2)) filter(abs(f-f0)<25)=1; filter(abs(f+f0)<25)=1; f0 = f0+523; end s_filter = real(ifft(fftshift(S.*filter)*n)); s_filter = int16(s_filter); Tspan = n/Fs; t = linspace(0,n,n)/n*Tspan; plot(t,s, t, s_filter);

filter - Filtering Audio Signals in MATLAB - Electrical ...

    https://electronics.stackexchange.com/questions/397795/filtering-audio-signals-in-matlab
    You need to filter the data at some point. The filter function is a good one to use if you've already created a transfer function\filter, the filter TF is being applied to the data going into the filter in. dataout = filter(TF,datain);

Filtering noise from an audio file - MathWorks

    https://www.mathworks.com/matlabcentral/answers/400244-filtering-noise-from-an-audio-file
    Filtering noise from an audio file. Learn more about filter, dsp, digital signal processing, audio file, noise cancellation MATLAB

Audio Signal Processing in Matlab | Engineering …

    https://www.section.io/engineering-education/audio-signals-processing-using-matlab/
    Audio Signal Processing in Matlab Low pass filtering. In low pass filtering, we assume that our signal has been contaminated by the white Gaussian noise... Matlab code for low pass filter (LPF). Audio samples (x) are numbers representing the wave value at a point in a... Graphic equalizer. Whenever ...

Audio Signal Processing using MATLAB (Filtering, Equalizer ...

    https://www.matlabcoding.com/2020/02/audio-signal-processing-using-matlab.html
    In this video, some basic processing of Audio signals is presented. Here, it will be shown that how one can implement an FIR low pass filter to remove white Gaussian noise present in an audio signal. Also to produce various sound effects such as Pop, Rock, Jazz etc., a graphic equalizer is implemented. Few other popular sound effects such as Echo, Flange and Reverb …

How can I filter noise in an audio file using FIR filter ...

    https://stackoverflow.com/questions/70634430/how-can-i-filter-noise-in-an-audio-file-using-fir-filter-in-matlab
    Digital filtering using LTI systems is by definition a convolution operation. >> b = fir1 (40, .5); % generate 40th order lowpass FIR filter at half the nyquist >> filteredAudio = filter (b, 1, noisyAudio); % since this is FIR, the only feedback coefficient is 1 at y_n. But, this will not remove white noise. It will only attenuate frequencies (including those in the original audio …

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