The Rode NTG4 Shotgun Microphone with Digital Switches NTG-4 is based on Rode’s award-winning NTG1 shotgun microphone design. It features a broadcast-quality, directional condenser that provides premium audio recordings in a versatile range of applications whether it is on-camera or boom mounted. The intuitive digital switch controls the inbuilt high-pass filter pad and high-frequency boost. The convenient switch is placed on the body of the microphone, and it even retains your settings when the microphone is turned off.
The signal to noise ratio (SNR) is a useful and universal way of comparing the relative amounts of signal and noise for any electronic system; high ratios will have very little visible noise whereas the opposite is true for low ratios.