On Sat, Dec 12, 2015 at 10:12 AM, Filipe Coelho <falktx@gmail.com> wrote:

On 12.12.2015 16:07, Paul Davis wrote:

On Sat, Dec 12, 2015 at 9:57 AM, Filipe Coelho <falktx@gmail.com> wrote:

This is by using switch-master.
You can change your entire JACK setup on the fly, including the selected soundcard.

effectively, the instance is stopped and restarted. all ports and port connections go away, unless recreated by whatever does the restart.

The system ports do go away and appear again, but all existing clients stay unchanged.

As far as clients are concerned, jack never stopped.

unless they listen to various callbacks, sure. but if the new instance is at a different SR, and they don't *know* this (which they cannot know, by definition), then in most cases, they will do the wrong thing.