help with hiss on audio please!

Acts7 wrote on 5/18/2004, 8:37 AM

http://www.usdm.net/holding/ccms/ads/Entire-intro-forvMAG.wmv

even after adjusting the noise gate filter so the hum and hiss is not heard during silent times, I am left with a high hiss that peaks with the speaker's voice. I tried using both a parametric and a graphic EQ but when I remove the high hiss it makes the speaker's voice sound muffled.

Any suggestions?

ps Im still using Vegas 4

Comments

Jay Gladwell wrote on 5/18/2004, 8:58 AM

Try posting your question in the Vegas - Audio forum. They are very helpful and knowledgable (not people here aren't).

J--

Jsnkc wrote on 5/18/2004, 9:08 AM

I will assume that over there they will tell you to buy and use the Noise Reduction plugin from Sony/Sofo. It works very well for things like this, but you will find that the voice will be a little muffled, but there isn't much you can do about that when you take out a lot of the high end to remove the hiss, you just need to find a happy medium.

johnmeyer wrote on 5/18/2004, 11:25 AM

It depends on what is causing the hiss. If it is caused by tape noise, then you are not going to be able to do much because this is broadband, random noise. The NR plugin can do a little, but all it is really doing is EQing the high end. If you try to remove too much hiss with this, it will create all sorts of nasty artifacts, and your sound will not only be muffled, but will sound very un-natural. The noise gate can work well with some material, but can also be annoying as it cuts in and out. If your source material is not Hi-Fi (for instance, the linear sound track on VHS tape), then you can simply use a low-pass filter and EQ the top end. Often, a slightly muffled high end sounds better than a lot of hiss.

If the hiss has a predominant frequency component (which you can see with the Spectrum Analyzer plugin), then you can notch it out.