Sound quality deteriorates for the same sound files
I am trying to run an AXB experiment which presents 3 sound files and requires a response from the participants. However, the same set of sound files which play perfectly well in the first block, deteriorate in quality (become glitched/scratchy) towards the end of the second block. I poked around with the sound buffer but that did not work. I carried out the same experiment some months ago and it was even longer in duration than the present experiment, still it did not pose this issue. Any suggestion on fixing this issue is much appreciated.