When I run Csound with -odac it sounds okay, but when I write it to
disk I get crackeling in some of the instruments. Any help as to what
is causing this or how to fix it would be much appreciated!

Note: I am compiling it with the -3 flag

Source code:
main.orc http://ix.io/1CSD
main.sco http://ix.io/1CSE

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