idamnjanovic@1: function SMALL_solver_test_Audio ivan@128: %% Example test of solvers on Sparco audio source separation problems idamnjanovic@1: % idamnjanovic@1: % The main purpose of this example is to show how to use SMALL structure idamnjanovic@1: % to solve SPARCO audio source3 separation problems (401-402) and to idamnjanovic@1: % compare results from different solvers. idamnjanovic@1: % To generate SMALL.Problem part of structure you can use generateProblem idamnjanovic@1: % function from Sparco toolbox giving the problem number and any idamnjanovic@1: % additional parameters you might want to change. Alternatively, you can idamnjanovic@1: % might want to consult sparco documentation to write a problem by idamnjanovic@1: % yourself. There are four fields the must be specified in SMALL.Problem idamnjanovic@1: % - A, b, sizeA and reconstruct. idamnjanovic@1: % idamnjanovic@1: % To generate SMALL.solver part of the structure you must specify three idamnjanovic@1: % fields: idamnjanovic@1: % idamnjanovic@1: % SMALL.solver.toolbox - string with toolbox name is needed because idamnjanovic@1: % different toolboxes are calling solver idamnjanovic@1: % functions in different ways. idamnjanovic@1: % SMALL.solver.name - its string representing solver name (e.g. idamnjanovic@1: % SolveBP) idamnjanovic@1: % SMALL.solver.param - string that contains optional parameters for idamnjanovic@1: % particular solver (all parameters you want to idamnjanovic@1: % specify except A, b and size of solution) idamnjanovic@1: % idamnjanovic@1: % Every call to SMALL_solve function will generate following output: idamnjanovic@1: % idamnjanovic@1: % SMALL.solver.solution - contains solution vector x idamnjanovic@1: % SMALL.solver.reconstructed - vector containing signal reconstructed idamnjanovic@1: % from the solution idamnjanovic@1: % SMALL.solver.time - time that solver spent to find the solution idamnjanovic@1: % idamnjanovic@1: % SMALL_plot function plots the SMALL.solver.solution and reconstructed idamnjanovic@1: % sources against original audio sources. idamnjanovic@1: % SMALL_playAudio function plays audio sources of original and idamnjanovic@1: % reconstructed signal as well as mixed signal. ivan@128: ivan@128: % ivan@128: % Centre for Digital Music, Queen Mary, University of London. ivan@128: % This file copyright 2009 Ivan Damnjanovic. ivan@128: % ivan@128: % This program is free software; you can redistribute it and/or ivan@128: % modify it under the terms of the GNU General Public License as ivan@128: % published by the Free Software Foundation; either version 2 of the ivan@128: % License, or (at your option) any later version. See the file ivan@128: % COPYING included with this distribution for more information. idamnjanovic@25: %% idamnjanovic@1: idamnjanovic@1: fprintf('\n\nExample test of solvers on Sparco Audio problems (401,402).\n\n'); idamnjanovic@1: idamnjanovic@1: %% idamnjanovic@1: % Generate SPARCO problem idamnjanovic@1: idamnjanovic@1: global SMALL idamnjanovic@1: SMALL.Problem = generateProblem(402,'show'); idamnjanovic@1: %% idamnjanovic@1: idamnjanovic@5: i=1; idamnjanovic@1: %% idamnjanovic@1: % SMALL Conjugate Gradient test idamnjanovic@1: idamnjanovic@5: SMALL.solver(i)=SMALL_init_solver; idamnjanovic@5: SMALL.solver(i).toolbox='SMALL'; idamnjanovic@5: SMALL.solver(i).name='SMALL_cgp'; idamnjanovic@1: idamnjanovic@1: % In the following string all parameters except matrix, measurement vector idamnjanovic@1: % and size of solution need to be specified. If you are not sure which idamnjanovic@1: % parameters are needed for particular solver type "help " in idamnjanovic@1: % MATLAB command line idamnjanovic@1: idamnjanovic@5: SMALL.solver(i).param='1500, 1e-14'; idamnjanovic@1: idamnjanovic@5: SMALL.solver(i)=SMALL_solve(SMALL.Problem, SMALL.solver(i)); idamnjanovic@1: idamnjanovic@1: idamnjanovic@5: i=i+1; idamnjanovic@1: %% idamnjanovic@1: % SolveOMP from SparseLab test idamnjanovic@1: idamnjanovic@5: SMALL.solver(i)=SMALL_init_solver; idamnjanovic@5: SMALL.solver(i).toolbox='SparseLab'; idamnjanovic@5: SMALL.solver(i).name='SolveBP'; idamnjanovic@1: idamnjanovic@1: % In the following string all parameters except matrix, measurement vector idamnjanovic@1: % and size of solution need to be specified. If you are not sure which idamnjanovic@1: % parameters are needed for particular solver type "help " in idamnjanovic@1: % MATLAB command line idamnjanovic@1: idamnjanovic@5: SMALL.solver(i).param='10'; idamnjanovic@1: idamnjanovic@5: SMALL.solver(i)=SMALL_solve(SMALL.Problem, SMALL.solver(i)); idamnjanovic@1: idamnjanovic@1: SMALL_plot(SMALL); idamnjanovic@1: SMALL_playAudio(SMALL); idamnjanovic@1: %% idamnjanovic@1: idamnjanovic@1: idamnjanovic@1: end % function SMALL_solver_test