Created
March 24, 2017 03:54
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%% Constants | |
% Number of coefficients for LPC | |
number_of_coefficients = 4; | |
% Number of audio files per audio source | |
number_of_audio_files = 5; | |
%% Memory allocation | |
% Initialize audio sources' matrixes | |
A = zeros(number_of_audio_files, number_of_coefficients+1); | |
B = zeros(number_of_audio_files, number_of_coefficients+1); | |
D = zeros(number_of_audio_files, number_of_coefficients+1); | |
E = zeros(number_of_audio_files, number_of_coefficients+1); | |
Ez = zeros(number_of_audio_files, number_of_coefficients+1); | |
G = zeros(number_of_audio_files, number_of_coefficients+1); | |
audio_sources = {A, B, D, E, Ez, G}; | |
audio_sources_str = {'A', 'B', 'D', 'E', 'Ez', 'G'}; | |
number_of_audio_sources = size(audio_sources, 2); | |
%% Load data into memory | |
for i = 1:1:number_of_audio_sources | |
% Load tmp vars with data | |
tmp_source = audio_sources{i}; | |
tmp_source_str = audio_sources_str{i}; | |
% Fill audio sources' matrixes | |
for j = 1:1:number_of_audio_files | |
% Load file from disk | |
data_file = strcat('./', tmp_source_str, num2str(j-1), '.wav'); | |
[data, Fs] = audioread(data_file); | |
% Get coefficients | |
[tmp_source(j, :), g] = lpc(data(:, 1), number_of_coefficients); | |
end | |
% Save data to audio_sources cell | |
audio_sources{i} = tmp_source; | |
end | |
%% Data processing | |
% TODO | |
%% Data visualization | |
figure; | |
hold on; | |
grid on; | |
title('Scatter3'); | |
xlabel('x'); | |
ylabel('y'); | |
zlabel('z'); | |
for i = 1:1:number_of_audio_sources | |
tmp_source = audio_sources{i}; | |
scatter3(tmp_source(1, 2), tmp_source(1, 3), tmp_source(1, 4)); | |
end | |
hold off; |
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