# Using multiple outputs in Minim - speaker output gets disabled

**URL:** <https://discourse.processing.org/t/using-multiple-outputs-in-minim-speaker-output-gets-disabled/40093>\
**Category:** Libraries\
**Created:** [December 9, 2022, 2:28pm UTC](https://discourse.processing.org/t/using-multiple-outputs-in-minim-speaker-output-gets-disabled/40093 "2022-12-09T14:28:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jcowhie](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/jcowhie/32/17971_2.png) [@jcowhie](https://discourse.processing.org/u/jcowhie)\
**Post date:** [December 9, 2022, 2:28pm UTC](https://discourse.processing.org/t/using-multiple-outputs-in-minim-speaker-output-gets-disabled/40093/1 "2022-12-09T14:28:02Z")

</div>

Hi,

First time posting…

Im a beginner but Im using minim library to create multiple outputs.  
I have the usb port working with speakers and the speakers on my Mac working.  
But when I plug a second set of speakers into my headphone port on my Mac , it seems to disable something and I get no output and a nullpointer error message that can’t find the audio file.

I think its something with the mixer ID but when I printl the outputs and try each one (none of which mention the headphone port) the program crashes…

Any help appreciated  
J