Summary of Contents for Soundbyte Solutions The Phoenix Automated McCormick Toy
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The Phoenix Automated McCormick Toy Discrimination Tester INSTRUCTIONS FOR USE Release 2.2 Soundbyte Solutions 1 Holwell Rd Kings Stag Dorset DT10 2BB Tel 0845 123 53 42 www.soundbytesloutions.co.uk...
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• If the device should fail despite the care taken in manufacture and testing, the device should be returned to Soundbyte Solutions (UK) Ltd. • Never wipe with scouring powders, hand implements or alcohol based cleaner •...
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INDEX Section Page number Introduction Setting up Us ing the Phoenix Menu navigation Main menu Toytest start menu 2.3.1 Toytest in quiet 2.3.2 Toytest complete menu 2.3.3 Toytest in noise 2.3.4 Toytest keyboard s um m ary 2.3.5 Toytest option menu 2.3.6 Select toy pairs W arble tone tests...
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This handbook describes the operation of the Phoenix Automated McCorm ick Toy Test developed by Soundbyte Solutions in collaboration with the Institute of Hearing Research (IHR). The Phoenix provides facilities for performing a toytest in quiet, toytest in noise, and warble tones presented in either dB(A) or dB(SP L).
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Setting up At the beginning of each testing session, the Phoenix should be positioned and assembled in the following m anner: Position the speaker and stand such that the front face of the speaker is 1 metre from the anticipated position of the child’s ear.
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Using the Phoenix Th e follow ing se ctions des cribe how to navigate the Phoe nix m enu struc tures and how to use the Pho enix to perform toytests and warble tests. Menu navigation The Phoenix is a menu driven device, so it is essential that the user be familiar with the menu structures and method of navigation.
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Toytest start menu From the toytest start menu you can either select testing in quiet or testing in noise. You can also select the toy pair enable/disable routine, prior to testing. The toytest menu options are shown below: Menu option Action TEST IN QUIET Begin the toytest algorithm in quiet conditions (sec tion 2.3.1).
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The display indicates the next word to be spoken and the level at which the word will be output. Pressing the <Play> ke y will produce the ou tput. The display will change again to indicate that the word ‘Plane’ has been spoken. This is your prompt to press <Yes>...
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If the child is distracted whilst listening, it is possible to repeat the test phrase (at the same level) by pressing the <Repeat> key. Another lead in phrase such as ‘point to the ... ’ or ‘show me the ...’ will be used during the <Repeat>...
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2.3.3 Toytest in noise The toytest in noise routine is run in exactly the same way as the toytest in quiet. The only difference being that the masker noise is gated on just prior to the speech output and remains on for the duration of the speech.
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2.3.5 Toytest option menu The m enu allows the user to access the following functions: Menu option Action SELEC T TO YS Th is option will ena ble the selec t toys rou tine. This allow s you to add or rem ove toy pairs from the testing algorithm (sec tion 2.3.6). EXIT TOYTEST This option will abandon the current toytest and jump to the end of test me nu (section 2.3.2).
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Warble tone tests To access the warble tone generator functions you should select [W ARBLE TE ST] from the main menu. You can then select either [W ARBLE dB(A)] or [W ARBLE dB(SPL)] from the warble tone test menu. Once you have selected your test, the keys on the handset will have the following instructions: MENU Press to access the warble test menu.
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2.4.1 The warble tone setup menu The m enu allows the user to access the following functions: Menu Option Action SET STEP SIZE Select this option to enter the routine to set the step size (section 2.4.2). EXIT W ARBLE Se lect this option to abandon the warble test a nd return to m ain menu.
Calibration and setup This section describes how to perform a quick calibration check prior to testing and how to perform a thorough calibration for all words and warble tones. Quick calibration check The quick calibration check should be performed each time the equipment layout is changed or prior to each set of tests.
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CALIBRATE TOYTEST You can now use the keypad to navigate through the test words and adjust each output level as follows: MENU Press to return to the setup menu. dB up Press this key to raise the output level by one 1 dB for the selected word.
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3.2.3 Calibration of warble tones By selecting [CAL W ARBLE] from the setup menu (section 2.2) you will enter the calibration routine for the warble tones. T his routine a llows you to step fo rward an d ba ckward thro ugh the warble frequen cies for bo th dB(A) and d B(S PL) and adjust each o ne to give the correct output in your test environ m ent.
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