Dear Geoff, Try to use the following Sout >>out settings -output type : win32 waveout -force detection of dolby surround : on -use s/p dif when available. Tools>Preferences>all>stream output> Soutstream>transcode> In Audio Tick mark: DTS Coherent Acoustic audio Decoder, ATSC A/52(AC-3) audio decoder...
with your above configuration..is the sound output stable or are you still getting any static/stuttering / choppy audio? If yes, then you might need to change some settings on the stream output > sout stream settings.