operating system facilities called <dfn>realtime scheduling</dfn> and
<dfn>memory locking</dfn>. This means that you, the user who starts JACK, must be
allowed access to these facilities. By default, Ubuntu does create a
operating system facilities called <dfn>realtime scheduling</dfn> and
<dfn>memory locking</dfn>. This means that you, the user who starts JACK, must be
allowed access to these facilities. By default, Ubuntu does create a