Tik-76.115 Individual Project: Guinea Pig
$Id: abx_usermanual.html,v 1.3 1996/04/20 10:19:49 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.

ABX 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 guess which one of the samples A and B is the same as sample X.

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 ABX test, before any samples are played, testee will see a screen with three buttons A, B and X. Below the A, B and X buttons there are Play buttons for playing the corresponding sample.

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Testee may play the samples in any order by pressing corresponding Play button. Any sample currently playing can be stopped by pressing the Stop button. Only one sample can be played at the same time. Playing the samples can be repeated until either button A or B is pressed. The corresponding sample will then be registered to be the same as the sample X and new samples will be loaded for evaluation. When new samples are being loaded, buttons are disabled (grayed).

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

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