Vokoder Asio4all And Virtual Port Midi

i have a problem.
my song is configured for vokoding
i use virtual midi port loopbe and some other tried.
its configured to send from insrument to effect midi notes , and this effect gets audio line in from mikrofone
everything is conekted to vokode. vocoding works, but only on directx and my sound card asio drivers,on
asio 4all drivers everything stops working, i think its relaited to virtual midi cabel, but tried some others cables and explore the same issue, i tried some others vocoders and its the same. when i asio drivers
reconect to soundcard drivers everything starts working…and vst for modular environment is bidule.

have yu some theories about this?

Most ASIO drivers can not be used by multiple applications at once. Some will even avoid that you can open the DirectSound counterpart in another application.

Looks like you have to stick with directsound then…

one renoise instance
insrument with bidule and midi port out
effect bidule with midi in

asio4all i use on multiple apps at once then its needed, no problems thith that