problem iwth extenal mic anyone could solve it

hi i bought external mic to my sony trv740 d8 its connect through cable to the cam plug in it is also radio shack mic the problem is that the mic if i moved through recording make a noise like if there is awind blowing u know and it is make anoise if i touch also the body of the mic from outside when i record is that normal and what must i do thx alot

Your question is hard to follow because you use run-on sentences that never seem to end and I can't quite follow you question and your experience but nonetheless could you update us and tell us if you solved the problem or if you still have it or if it went away on it's own and what caused it in the first place.

thanks in advance.

My interpretation of Darkside's question:


Hi.

I bought an external mic for my sony trv740 d8. It's connected to the cam through a jack. It is a Radio Shack mic. The problem is that the mic, if moved while recording, makes a noise like a wind blowing across it. It also makes a noise if I touch also the body of the mic while recording. Is that normal? What must I do?

Thanks a lot.

I have encountered this myself and am still fighting the battle. I believe there are two things that cause or contribute to the problem. First, the mike is very sensitive and second, the camera's audio has automatic gain control. The result is that in a quiet environment the small noises made through normal handling of the mike are the only sounds the camera hears. The camera interprets these as normal and pumps up the gain so their volume is all out of proportion.

If your camera has manual gain control then the solution is to manually set the gain high enough to allow speech to be heard but low enough that the objectionable noises do not get through. This may be a compromise.

If you cannot control the gain manually then you'll have to keep from handling the mike while recording. Try fastening it to a mike stand and taping the cable to the stand in two or three places.

I believe that to be an excellent interpretation.

Your solution seems correct. However I seem to recall that on some video models, that the manual control is somehow messed up from the factory, that it doesn't work the way manual normally works. I vaguely remember reading that the external microphone issue might be rectified with an antennuator, but I'm not sure.