A technical question.

[Highlander]

Hey there LRR forums. Its been far too long.

Anyway I've been helping a friend with some audio equipment but there's always this god awful hiss in the recordings. He's got a RODE videomic and a zoom H4N, using a boompole and a XLR extension cable to hook the whole shebang together. I remember Graham mentioning something about playing a tone into the other input from a LRRcast way waaay back.

Any advice from aspiring videographers.

[Cybertrash]

Is the stuff grounded properly?

[Dutch guy]

Have you tried a spectrum analyzer and if so, what frequencies are you getting for the hiss? My first guess would be grounding issues or crossfeed from power to audio cables.

[Highlander]

Sorry for the delay in answering, apparently I look like I smuggle heroine...

I am a complete novice when it comes to audio, how would I go about grounding the equipment?

On the spectrum analyser, can you recommend a cheap one?

[Dutch guy]

Try hitting your phone app store and downloading a free one :p