23 lines
476 B
Matlab
23 lines
476 B
Matlab
function [cep_autocorr, cep_lags] = autocorr(signal, max_lags, time, Fs)
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% [cep_autocorr, cep_lags] = xcorr(signal, round(max_lags), 'coeff');
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[cep_autocorr, cep_lags] = xcorr(signal, 'coeff');
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if time
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cep_lags = 1000*cep_lags/Fs; % turn samples into ms
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end
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plot(cep_lags, cep_autocorr)
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grid
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if time
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xlabel('Delay (ms)')
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else
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xlabel('Delay (samples)')
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end
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ylabel('Normalized Autocorrelation')
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title('Autocorrelation')
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xlim([min(cep_lags) max(cep_lags)]);
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end
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