I currently can only run my laptop in safe mode. How do I get audio?
You don't. Fix the problem so that you can boot into normal mode.
The whole point of SAFE mode is to allow the system to boot and permit you to solve whatever problem the computer is having. It is not for normal use. Only essential services and device drivers are loaded. Audio is not among them. While what you want could probably be done it would likely take more work than solving the original problem.
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