2012 Hack Session Notes¶

Using SMALLbox Add-ons¶

These are the steps needed to interface SMALLbox add-ons to the core SMALLbox distribulation:

1. Download the add-on distribution from: http://code.soundsoftware.ac.uk/projects/incoherentdl/files
   • The version you wish to download is version 1.1
   • unzip the downloaded file - this will create a folder named incoherentdl-v1_1
2. Place the add-on code in any convenient location of your file system, and add this to your MATLAB path
   • addpath(genpath('{incoherentdl-v1_1}'))@
3. Modify the relevant files in the folder {SMALLBox Root}/config/
   • modify or create {SMALLBox Root}/config/SMALL_learn_config_local.m
     • cp {SMALLBox Root}/config/SMALL_learn_local.m SMBOX/config/SMALL_learn_config_local.m
       • this local file is not tracked by Mercurial
       • if you need to revert to the default SMALLbox setting, you just need to delete/rename your local file
     • add the following code to the local config file:
       

       elseif strcmpi(DL.toolbox , 'SMALL_incoherentDL')
         DL=SMALL_incoherentDL ( Problem , DL ) ;
          % we need to make sure that columns are normalised to % unit lenght .
         for i = 1: size(DL.D,2)
           DL.D(: ,i)=DL.D(: ,i)/norm(DL.D(: ,i));
         end
         D = DL.D;
       

4. Run the SMALLboxInit.m script to set environmental variables
5. Run any function or script contained in the add-on.
   • example:
     • load test_mocod.mat
       • located in incoherentdl-v1_1/results/test_mocod.mat (but already in path)
     • open SMALL_test_mocod.m
       • located in incoherentdl-v1_1/open SMALL_test_mocod.m
     • run the code from the block that starts on line 110 (with the comment Plot Results)
       • this will display two coherence/signal to noise ratio plots based on results previously computed