function [Y, Y_plot, valeurs_tau, valeurs_f] = TFCTT(y, f_ech, n_fenetre, n_decalage, fenetre)

    Y = buffer(y, n_fenetre, n_fenetre - n_decalage);

    if fenetre == "hann"
        f = hann(n_fenetre);
        Y = Y .* f;
    end

    Y = fft(Y);
    Y = Y(1:size(Y, 1) / 2, :);

    valeurs_tau = 0:(1 / f_ech):(size(y, 1) / f_ech);
    valeurs_f = 0:1 / size(Y, 1):f_ech;

    % tronquage à 16kHz
    seuil = 16000;
    Y_plot = Y;
    Y(floor(seuil / f_ech * size(Y, 1):end), :) = 0;
    Y_plot(floor(seuil / f_ech * size(Y, 1):end), :) = mean(Y_plot(floor(seuil / f_ech * size(Y, 1):end), :), "all");

end