Be the first to rate this file! 16 Downloads (last 30 days) File Size: 2.64 KB File ID: #38798

Generates test sample(audio)

by

 

Generates test samples by randomly combining a known set of test data.

| Watch this File

File Information
Description

This is utility function used to generate test samples by randomly combining audio samples (encoded in wave format) located at a specified directory*

[out save_dir] = generateTestData(data_loc,n,len,[save,r])

 DESC:
    Generates test sample(s) 'out' by randomly choosing test data located at 'data_loc'

  eg., for
              data_loc = [ 1,2,3,4,5 ]
       generateTestData(data_loc,1,4) might return out = [ 5,7,1,7 ]

 INPUT:
   data_loc := /path/to/data from which audio sample(s) has to be generated.
   n := #test samples to generate
   len := #elements in each test sample.
   save := boolean,
                    true - save the generated sample(s) to disk.
                    By default, saved at data_loc/samples/<out(n).name>.wav
                    false - do not save (default)
   r := 0 - no repetetion [1]
                   k - #repetetions in each test sample (not implemented)

 OUTPUT:
   out(n) := generated test sample(s)

       .srate := sampling rate of the generated sample [2]
       .data := the data
       .name := name of the generated sample

 NOTE:
  [1] Repetetions is allowed by default; use r=0 to turn off repetetion.
  [2] In-consistencies in sampling rate amoungst the test data would yield
      unpredictable sampling rate (although with-in test data) of generated sample.

* This program uses the 'combinator' written by Matt Fig to randomly combine the test data.
(You can download it here : http://www.mathworks.com/matlabcentral/fileexchange/24325-combinator-combinations-and-permutations)

** This is my first program written in Matlab. I wrote this utility function as a part of my lab work in Audio. Suggestions and inputs are always welcome.

Acknowledgements

Combinator Combinations And Permutations inspired this file.

MATLAB release MATLAB 7.12 (R2011a)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.

Contact us