Hi Lavs,
Kindly refer to this topic for our suggestions on fixing audio problems like the one you've just described:
http://forum.brillkids.com/little-reader-bug-reports/pronunciation-audio-getting-cut-off-please-see-here/I recommend that you try the first suggestion, updating your computer's codec, and if that doesn't work please try the other tips.
I hope one of our suggestions work for you! If you continue to have problems, do send us a diagnostic report so we can begin troubleshooting. For instructions on how to create a diagnostic report, you may refer to the banner image in the LR Tech Support board:
http://forum.brillkids.com/little-reader-bug-reports/