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1 %% Example
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2 %
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3 %% First steps
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4
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5 MASSEF.install; % you only need to do this once!
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6 MASSEF.start; % start MASSEF
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7
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8 %% Make mixtures
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9 % Specify the source files:
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10
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11 target_fns = {'s1.wav','s2.wav'}; % target filenames
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12 interferer_fns = {'s11.wav','s12.wav'}; % interferer filenames
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13
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14 %%
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15 % Create some |iosr.bss.source| objects for targets and interferers:
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16
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17 t(length(target_fns),1) = iosr.bss.source;
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18 i(length(interferer_fns),1) = iosr.bss.source;
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19
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20 %%
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21 % Make sources from filenames:
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22
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23 for n = 1:length(target_fns)
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24 t(n,1) = iosr.bss.source(target_fns{n});
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25 end
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26 for n = 1:length(interferer_fns)
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27 i(n,1) = iosr.bss.source(interferer_fns{n});
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28 end
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29
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30 % Specify source spatial parameters:
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31
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32 azimuths = [-5 5]; % target and interferer azimuths
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33 tirs = [-10 0]; % target-to-interferer ratios
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34 rooms = {'UniS_Room_A_BRIR_16k.sofa'}; % SOFA file for spatialisation
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35
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36 %%
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37 % Generate the mixtures, in all combinations of the various mixture
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38 % parameters, and render the mixtures to disk.
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39
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40 fs = 16000;
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41
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42 mixtures = iosr.bss.generateMixtures(t,i,...
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43 'sofa_paths',rooms,...
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44 'azimuths',azimuths,...
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45 'tirs',tirs,...
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46 'fs',fs,...
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47 'cache',true,...
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48 'folder','mixture_temp',...
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49 'combine','all',...
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50 'decomposition','gammatone',...
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51 'gammatone',struct(...
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52 'cfs',iosr.auditory.makeErbCFs(20,7500,32),...
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53 'frame',round(0.02*fs)...
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54 )...
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55 );
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56
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57 %% Instantiate the separation algorithm
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58
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59 p = messl_massef(fs);
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60
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61 %%
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62 % |messl_massef| is a wrapper class for the <https://github.com/mim/messl
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63 % messl> algorithm. The class implementation is shown below.
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64
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65 %% Choose MASSEF options
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66 % Specify the parameters of the MASSEF object:
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67
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68 options = struct( ...
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69 'evalPEASS',false,... % don't run PEASS
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70 'evalSTOI',false); % don't run STOI
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71
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72 %% Run MASSEF
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73
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74 massef = MASSEF(options);
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75 massef.execute(mixtures,p);
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76
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77 %%
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78 % Once |execute| is complete, |massef| will be saved to
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79 % |Results/results.mat|. The performance data are stored in
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80 % |massef.results|. The full dataset can be recalled as a |Table| object in
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81 % the following way:
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82
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83 resultsTable = massef.results.data;
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84
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85 %% MESSL wrapper implementation
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86 % <matlab:edit(fullfile(MASSEF.dir,'help_html','source','messl_massef.m'))
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87 % Open in the MATLAB editor>.
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88 %
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89 % <include>messl_massef.m</include>
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90 %
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91 % See <help_Separators.html Separation Algorithms> for more information.
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92
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93 %% See also
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94 % <help_MASSEF.html MASSEF>, <help_MASSEFresults.html MASSEFresults>.
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95 %
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96 % <html>
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97 % <hr>
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98 % <p>Copyright © 2017 <a href="http://www.surrey.ac.uk">University of Surrey</a><br>
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99 % <a href="http://iosr.uk">Institute of Sound Recording, University of Surrey, UK</a></p>
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100 % </html>
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