Doesn't it depend on what they are using for the trial? Is it something they embedded in the registry? connected to a cloud? IP connected?
There used to be old tricks you could do to make a time trial unlimited. First you have to figure out what they're using though. $349 USD is pretty steep for the Deep Audio in my opinion. The basic one mentioned above is only $99 but it looks like you can't do the deep spectral stuff just stems?