This article applies to:
Sound playback may clip after the first playback of a sound (i.e. ,on repetition of the sound).
In E-Prime 2.0.10.x, there is a known issue when using a absolute path for a SoundOut or SlideSoundObject that may cause clipping after the first playback of a sound.
Use an Attribute reference for the Filename even if you are only using a single sound.