DeHiss is an AU universal binary plugin that zaps high-pitched hiss without affecting high-pitched signal. Not a broadband noise reducer or a gate. Killer on DI guitar, too. Check out the demo using a Marshall Mic Mate to produce low level hiss. DeHiss is $39.99.
Try the demo of this by downloading the demo collection! You're not allowed to use the demo for actual work. It politely mutes itself briefly every couple minutes, and that's the only thing it does to spite you. It won't expire or do anything to you, and when you get the actual plugin, throw away the demo and put the real version in its place and most software should replace saved instances of the demo with the real thing seamlessly, retaining any settings. Please support my cooperative, unhostile demos with sales of the real software.
