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example0.rst

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  • script_wins.m 1.49 KiB
    clc; clear; close all;
    
    %%
    
    sig_len = 16384;
    fs = 8000;
    signal_params = generate_signal_parameters(fs, sig_len);
    
    settings = {struct('win_type','gauss','approx_win_len',128,'nbins',128*4,'hop',...,
        128/4,'sig_len',sig_len), struct('win_type','gauss','approx_win_len',256,'nbins',256*4,'hop',...,
        256/4,'sig_len',sig_len), struct('win_type','gauss','approx_win_len',512,'nbins',512*4,'hop',...,
        512/4,'sig_len',sig_len),struct('win_type','hann','approx_win_len',256,'nbins',128*2,'hop',...,
        128/8,'sig_len',sig_len), struct('win_type','hann','approx_win_len',512,'nbins',256*2,'hop',...,
        256/8,'sig_len',sig_len), struct('win_type','hann','approx_win_len',1024,'nbins',512*2,'hop',...,
        512/8,'sig_len',sig_len)};
    %
    %%
    
    for k =1:length(settings)
        
        params = settings{k};
        
        dgt_params = generate_dgt_parameters(params.win_type, params.approx_win_len,...,
            params.hop, params.nbins, sig_len);
        
        [dgt, idgt] = get_stft_operators(dgt_params, signal_params);
        
        m = zeros(params.nbins/2+1, sig_len/params.hop);
        g = gen_gabmul_operator(dgt, idgt, m);
        
        figure;
        dynrange=30;
        plot_ambiguity_function(dgt_params.win, dgt , dgt_params, signal_params, dynrange)
        
        dx = 0.1;
        switch params.win_type
            case 'gauss'
                
                xlim([1 - dx, 1 + dx])
            case 'hann'
                xlim([0.1 - dx, 0.1 + dx])
        end
        ylim([0, 100])
        title([params.win_type, params.approx_win_len, num2str(std(dgt_params.win)) {} {}'])
        
    end