annotate examples/SMALL_solver_test_Audio.m @ 5:f44689e95ea4

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author idamnjanovic
date Mon, 22 Mar 2010 10:43:01 +0000
parents 7750624e0c73
children cbf3521c25eb
rev   line source
idamnjanovic@1 1 function SMALL_solver_test_Audio
idamnjanovic@1 2 % Example test of solvers on Sparco audio source separation problems
idamnjanovic@1 3 %
idamnjanovic@1 4 % The main purpose of this example is to show how to use SMALL structure
idamnjanovic@1 5 % to solve SPARCO audio source3 separation problems (401-402) and to
idamnjanovic@1 6 % compare results from different solvers.
idamnjanovic@1 7 % To generate SMALL.Problem part of structure you can use generateProblem
idamnjanovic@1 8 % function from Sparco toolbox giving the problem number and any
idamnjanovic@1 9 % additional parameters you might want to change. Alternatively, you can
idamnjanovic@1 10 % might want to consult sparco documentation to write a problem by
idamnjanovic@1 11 % yourself. There are four fields the must be specified in SMALL.Problem
idamnjanovic@1 12 % - A, b, sizeA and reconstruct.
idamnjanovic@1 13 %
idamnjanovic@1 14 % To generate SMALL.solver part of the structure you must specify three
idamnjanovic@1 15 % fields:
idamnjanovic@1 16 %
idamnjanovic@1 17 % SMALL.solver.toolbox - string with toolbox name is needed because
idamnjanovic@1 18 % different toolboxes are calling solver
idamnjanovic@1 19 % functions in different ways.
idamnjanovic@1 20 % SMALL.solver.name - its string representing solver name (e.g.
idamnjanovic@1 21 % SolveBP)
idamnjanovic@1 22 % SMALL.solver.param - string that contains optional parameters for
idamnjanovic@1 23 % particular solver (all parameters you want to
idamnjanovic@1 24 % specify except A, b and size of solution)
idamnjanovic@1 25 %
idamnjanovic@1 26 % Every call to SMALL_solve function will generate following output:
idamnjanovic@1 27 %
idamnjanovic@1 28 % SMALL.solver.solution - contains solution vector x
idamnjanovic@1 29 % SMALL.solver.reconstructed - vector containing signal reconstructed
idamnjanovic@1 30 % from the solution
idamnjanovic@1 31 % SMALL.solver.time - time that solver spent to find the solution
idamnjanovic@1 32 %
idamnjanovic@1 33 % SMALL_plot function plots the SMALL.solver.solution and reconstructed
idamnjanovic@1 34 % sources against original audio sources.
idamnjanovic@1 35 % SMALL_playAudio function plays audio sources of original and
idamnjanovic@1 36 % reconstructed signal as well as mixed signal.
idamnjanovic@1 37 %
idamnjanovic@1 38 %
idamnjanovic@1 39 % Ivan Damnjanovic 2009%
idamnjanovic@1 40 %
idamnjanovic@1 41 % SPARCO Copyright 2008, Ewout van den Berg and Michael P. Friedlander
idamnjanovic@1 42 % http://www.cs.ubc.ca/labs/scl/sparco
idamnjanovic@1 43 % $Id: exGPSR.m 1040 2008-06-26 20:29:02Z ewout78 $
idamnjanovic@1 44
idamnjanovic@1 45 fprintf('\n\nExample test of solvers on Sparco Audio problems (401,402).\n\n');
idamnjanovic@1 46
idamnjanovic@1 47 %%
idamnjanovic@1 48 % Generate SPARCO problem
idamnjanovic@1 49
idamnjanovic@1 50 global SMALL
idamnjanovic@1 51 SMALL.Problem = generateProblem(402,'show');
idamnjanovic@1 52 %%
idamnjanovic@1 53
idamnjanovic@5 54 i=1;
idamnjanovic@1 55 %%
idamnjanovic@1 56 % SMALL Conjugate Gradient test
idamnjanovic@1 57
idamnjanovic@5 58 SMALL.solver(i)=SMALL_init_solver;
idamnjanovic@5 59 SMALL.solver(i).toolbox='SMALL';
idamnjanovic@5 60 SMALL.solver(i).name='SMALL_cgp';
idamnjanovic@1 61
idamnjanovic@1 62 % In the following string all parameters except matrix, measurement vector
idamnjanovic@1 63 % and size of solution need to be specified. If you are not sure which
idamnjanovic@1 64 % parameters are needed for particular solver type "help <Solver name>" in
idamnjanovic@1 65 % MATLAB command line
idamnjanovic@1 66
idamnjanovic@5 67 SMALL.solver(i).param='1500, 1e-14';
idamnjanovic@1 68
idamnjanovic@5 69 SMALL.solver(i)=SMALL_solve(SMALL.Problem, SMALL.solver(i));
idamnjanovic@1 70
idamnjanovic@1 71
idamnjanovic@5 72 i=i+1;
idamnjanovic@1 73 %%
idamnjanovic@1 74 % SolveOMP from SparseLab test
idamnjanovic@1 75
idamnjanovic@5 76 SMALL.solver(i)=SMALL_init_solver;
idamnjanovic@5 77 SMALL.solver(i).toolbox='SparseLab';
idamnjanovic@5 78 SMALL.solver(i).name='SolveBP';
idamnjanovic@1 79
idamnjanovic@1 80 % In the following string all parameters except matrix, measurement vector
idamnjanovic@1 81 % and size of solution need to be specified. If you are not sure which
idamnjanovic@1 82 % parameters are needed for particular solver type "help <Solver name>" in
idamnjanovic@1 83 % MATLAB command line
idamnjanovic@1 84
idamnjanovic@5 85 SMALL.solver(i).param='10';
idamnjanovic@1 86
idamnjanovic@5 87 SMALL.solver(i)=SMALL_solve(SMALL.Problem, SMALL.solver(i));
idamnjanovic@1 88
idamnjanovic@1 89 SMALL_plot(SMALL);
idamnjanovic@1 90 SMALL_playAudio(SMALL);
idamnjanovic@1 91 %%
idamnjanovic@1 92
idamnjanovic@1 93
idamnjanovic@1 94 end % function SMALL_solver_test