In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The CARL MARTIN Noise Terminator is a 9V-battery-powered pedal designed to preserve the original tonal characteristics while removing unwanted noise that occurs when multiple effects are used. It surpasses the performance of conventional noise gates by allowing the player to switch between two threshold settings: Soft - with less noisy equipment: Hard - when more radical settings are required.