Hi Michel, > Well, obviously the shorter the better, however I don't think > an NT thread can be rescheduled more often than once per ms, > the default being 2 ms if I remember correctly (those who > know please correct me). The lower limit on thread scheduling latency is determined by the OS (including ALL drivers) and the processor speed. The catch is that there are no guarantees. The practical limit for the NT kernel is around 1 - 1.5ms but of course, not with any combination of hardware/drivers. Dirk ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/