Stereo Pre-built DirectX Example: Audio noise gate
HINT: YOU CAN CHOOSE ANY WAVEWARP DRAWINGBOARD AS A DIRECTX STEREO PLUGIN -- NOT JUST THE
ONES CONTAINED IN THIS "DirectX/Stereo" CATEGORY. WAVEWARP WILL AUTOMATICALLY CONVERT ANY
DRAWINGBOARD INTO THE REQUIRED FORMAT. THE PRE-CONVERTED EXAMPLES IN THIS DIRECTORY
ARE SIMPLY TO DEMONSTRATE THE EXPLICIT FORMAT OF STEREO DIRECTX DRAWINGBOARDS. SO, AFTER
YOU'VE TRIED THESE, JUST BROWSE TO ANY OTHER EXAMPLE DRAWINGBOARD IN THE ENTIRE DISTRIBUTION --
OR BETTER STILL, GO INTO WAVEWARP AND BUILD YOUR OWN!
The noise gate is the extreme case of the expander. It eliminates all signals below the user-defined the threshold. It works
by measuring the average signal power and applying a logarithmic automatic gain control to the signal, based on the
average measurement.
In this illustrative example, the input signal is mixed with a low amplitude noise, and passed through the noise gate.
The effect of the noise gate is to eliminate the usually low-volume contributions. Of course, in normal use, you would not
intentionally add any noise !
