Waves Z-Noise is part of the Waves Noise Reduction Bundle (often including X-Noise, W43, and WNS). Z-Noise stands out because it uses technology. Unlike simpler gates or EQs, Z-Noise “learns” the noise fingerprint of your recording — whether it’s hiss from an old tape, hum from a guitar amp, or air conditioner rumble — and removes it while preserving the original signal’s integrity.