Tik-76.115 Individual Project: Guinea Pig
$Id: abc_usermanual.html,v 1.3 1996/04/20 10:11:34 jrintafi Exp $

Testee UI - User's Manual

This document describes the use of the testee graphical user interface during the test. More technical documents of the Testee User Interface can be found in System Manual Testee UI.

ABC Test

Test Procedure

In the beginning of a psychoacoustic test, the testee will be given instructions on the test. In some tests testee can also adjust the most comfortable listening level (MCL) before the actual test. Volume slider is shown below.

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In the beginning of the test a few first samples should be considered as training samples during which testee should accustom to the test procedure and the samples that will be played during the actual test. Answers given using these samples should be ignored.

The aim of this test is to give grades to the samples according to how much they resemble the reference sample.

In the actual test the testee will listen the samples and answer as instructed until the samples run out.

Running The Test

In the beginning of the ABC test, before any samples are played, testee will see a screen with three buttons A, B and C. Below the B and C buttons there are sliders for giving grades to the corresponding samples according to how much they resemble the reference sample A.

[Image]

Testee may play the samples in any order by pressing corresponding button. Any sample currently playing can be stopped by pressing the Stop button. Only one sample can be played at the same time. Sample that is playing can be changed "on the fly". Grades can be given using the sliders. Playing the samples and changing the grades can be repeated until the OK button is pressed. Values of the sliders at that moment will then be registered as an answer and new samples will be loaded for evaluation. When new samples are loaded, buttons are disabled (grayed).

After all samples have been played and the last answer is given, window containing buttons and sliders disappears. Test is then over.

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