WavTest - p nStart = 2 abs(nShift nStop = nMidPoint 1...

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close all; clear all; clc; c % parameters nSamplingFrequency = 11025; % Hz dDuration = 2; nShift = -500; n % record sound keyboard; pdTestSound = wavrecord(nSamplingFrequency*dDuration, nSamplingFrequency); p % play back original sound wavplay(pdTestSound, nSamplingFrequency); w % do FFT of both channels pdFFT = fft(pdTestSound); p pdModifiedFFT = zeros(size(pdFFT)); pdModifiedFFT(1,:) = pdFFT(1,:); p pdModifiedFFT = pdFFT; pdModifiedFFT(1) = 0; nMidPoint = length(pdModifiedFFT)/2 + 1; pdModifiedFFT(nMidPoint) = 0;
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Unformatted text preview: p nStart = 2 + abs(nShift); nStop = nMidPoint - 1 - abs(nShift); pdModifiedFFT(nStart+nShift:nStop+nShift,:) = pdFFT(nStart:nStop,:); p nStart = nMidPoint + 1 + abs(nShift); nStop = length(pdModifiedFFT) - abs(nShift); pdModifiedFFT(nStart-nShift:nStop-nShift,:) = pdFFT(nStart:nStop,:); p pdModifiedSound = ifft(pdModifiedFFT); p keyboard; wavplay(pdModifiedSound, nSamplingFrequency); w % wavwrite(pdTestSound, nSamplingFrequency, 'testsound.wav');...
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