Stacking with the audio code

for the audio, i choose minim2.2 from processing library to generate the audio.
source:http://code.compartmental.net/tools/minim/
What i used in the library is the "BandPassFilter" code that can control the sound volume and the compress sound filter.
What i faced in this problem is the sound control will crash the program when i trigger the audio.

Therefore, i had ignore this part and make some option for the screen preview 1st.

Above coding is two different calculation for additional option for the screen preview & projector preview.