Looping sound output

[Leisha Wharfield]

I need this, too. I am to present subjects with one of two sounds, 
randomly: a drum and a trumpet. Subjects press one button if the sound 
is a drum, the other if the sound is a trumpet. .5 to 1.5 seconds is 
allowed between each sound, with the entire task lasting 10 seconds. The 
drum or trumpet sound should be random, but neither sound should occur 
more than three times in a row.

Leisha

Lee Hogarth wrote:

>Dear all, 
>
>I wish to present three sound files (.wav) each lasting 200msec, in
>random order, with a variable interval between them, for an overall
>fixed period of 3 seconds.
>
>Does anyone have an example of how to loop the sampling of sound files
>until a certain duration is reached?
>
>Many thanks.
>
>Lee Hogarth. 
>
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