File Coverage

blib/lib/App/testyourears.pm
Criterion Covered Total %
statement 8 8 100.0
branch n/a
condition n/a
subroutine 3 3 100.0
pod n/a
total 11 11 100.0


line stmt bran cond sub pod time code
1             package App::testyourears;
2              
3              
4 1     1   14313 use 5.006;
  1         5  
5 1     1   5 use strict;
  1         1  
  1         17  
6 1     1   7 use warnings;
  1         5  
  1         47  
7              
8             =encoding UTF-8
9              
10             =head1 NAME
11              
12             App::testyourears - A script to test the tone perception of your ears.
13              
14             =head1 VERSION
15              
16             Version 0.001
17              
18             =cut
19              
20             $App::testyourears::VERSION=0.001;
21              
22             =head1 SYNOPSIS
23              
24             $ testyourears
25              
26             =head1 DESCRIPTION
27              
28             This is a script designed to test the accuracy of the tone
29             discrimination of the users ears. Two tones are produced and the user
30             must vary one of them until both match. The script repeatedly
31             generates a tone with a randomly
32             chosen unknown frequency and sends it through your earphones to one of your
33             ears to be compared with a tone of a frequency under the user's
34             control that is sent to his other ear. When the user believes the
35             tones agree the test continues with a new random tone. The output of
36             the program is a text file with the chosen frequencies and the
37             discrepancies between both ears. The user can the plot the results with an
38             external program or process them with whatever tool he choses.
39              
40             =head1 INSTRUCTIONS
41              
42             Test the accuracy of your ears.
43              
44             Use your headphones/earphones.
45              
46             Press the (Re)init button to initialize a random tone.
47              
48             Choose a file to save the results.
49              
50             Repeatedly, press the Reference and Current buttons while
51             modifying the frequency knobs until you believe both tones
52             match. You might want to set the volume for each channel. If the tone
53             is inaudible (maybe due to a too high or low frequency), you can
54             =change it by Reiniting.
55              
56             After matching a tone, Reinit and repeat the process until you get
57             tired, and then Stop.
58              
59             You may Peek (but you shouldn't) to find out how
60             you are doing.
61              
62             The result is a text file with three columns of data: the target frequency,
63             the matching frequency and the difference in semi-tones. After the
64             test is concluded, this file may be processed with external
65             tools. For example, the may be plotted with *gnuplot.*
66              
67              
68              
69             =head1 AUTHOR
70              
71             W. Luis Mochán, Instituto de Ciencias Físicas, UNAM, México
72             C
73              
74             =head1 ACKNOWLEDGMENTS
75              
76             This work was partially supported by DGAPA-UNAM under grants IN108413
77             and IN113016.
78              
79             =cut
80              
81             1;