The image recorded with a SLR camera found the sound of automatic focusing of the lens. How to pass post-processing

The image recorded with a SLR camera found the sound of automatic focusing of the lens. Eliminating focused sound through post-processing requires very high-end equipment and skills, which is not worth the candle. Professional shooting such as TV series and TV news production does not choose such post-processing. Common solutions are: 1, dubbing again, recording and synthesizing; 2. Choose other audio, such as music, and replace the original recording in post-production; 3. When shooting, use an external microphone to record scenes far away from the camera; 4. Avoid zooming when shooting, or choose a mute lens.

I hope to adopt.