2262 日 前,
120 観覧
2262 日 前,
120 観覧
A short demonstration of my final design for the circuit to defeat the AGC (automatic gain control) of the FZ200 (or any other camera with just AGC and no manual level control).Using a circuit to inject an inaudible (20KHz) signal in parallel with the left hand audio from the mic input the circuit "fools" the AGC into thinking there is a constant level of audio. Thus during quiet passages of the audio it doesn't try to raise the gain which would then make teh background noise more audible.Link for the schematichttps://www.grahamhoughton.com/tech-t...