Black Box IEEE 1284 Guida Utente Scaricare il pdf (Pagina 37)

The Black Box Toolkit Page 37 of 98

We can now use the Data Analysis module to check synchrony and other timings obtained

from the remote PC.

Once we have loaded the RTL file into the data analyser we can see that the tone was

played consistently for 40 to 41ms longer that it should have been (line 1). This

presentation timing error may be attributed to the experiment generator used, the remote

PC, the soundcard, the amplifier and speakers or a combination of all these factors.

Next we can measure the synchrony between the onset of the image and the tone. The

onset of both events should be identical. We do this by bringing up two moveable cursors

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Black Box IEEE 1284 Guida Utente Pagina 37