I know its down but it does re-direct you to our eBay store. I know some of you think it’s lame to sell product on eBay but I have sold a lot in the last two years, so I would strongly have to disagree. Check out my store and check out some of the other good mic sellers around like: Core Sound and Sound Professionals they also make a good product. I like mine, but maybe you will not. Sound forge has a plug in I will look around and see if I can find it. It is very good but again anything you do in the way of noise removal is going to affect the end result of your recording's sound.
These are some simple first steps to identifying noise.
1-First make sure it’s not the playback machine that is noisy (copy file to computer) via digital interface if you can.
2- Analyze the file in question with a spectrum analyzer. See if you can identify the peeks in the signal that are causing the noise. If they are peeks it’s most likely a machine noise or its some form of inducted noise via bad cables bad shielding of cheap mics.
3- Once you find that the noise is a series of peek frequencies. Identify them and try using a parametric EQ plug in with in sound forge with a narrow Q and try and reduce them as little as possible until the noise disappears.
4- If the noise is underlying noise IE. Below the music and constant there are two methods remaining for almost total elimination of this noise.
1- Using sampling noise reduction. This type of noise reduction uses a sample of the noise in question and removes every instance of that noise it can find. BE warned this is very destructive if not used properly and only works if you have a pause where there is no sound heard but the hiss noise you’re talking about.
2- The second method is the one most often used it involves editing the beginning and end of each song and inserting silence into it.
3- There is one more trick but its way to involved but its worthy of mention.
If you have a noise that is constant in a recording you can use the phase cancellation method. You put your stereo track into multi track mode finding the noise and sampling it and then reverse the polarity of the output of that track. So that it cancels the offending noise out. This is getting to a forensic level of noise removal used by law enforcement and others government agencies with three letter names. But it does work I once was hired by “someone” to remove noise from a telephone conversation; there was a 60 cycle hum that had harmonics of 120 and 180 and 240. I used a function generator and put everything into multi track, reversed the polarity of the function generator so it was 180 degrees out from the noise and made a track of these noises every where they appeared on the original track and the noise was reduced by almost 65% very time consuming but you get the idea anything is possible if you have the time to do it.
The best method to reduce noise in the end is NOT TO RECORD IT
get to know your recorder and mics by going in to a quiet room get to know what the max level is that you can use on your recorder with your setup before you hear noise or hiss from your built in preamp also consider using an external preamp from Church-Audio Core Sound or Sound Professionals that will make a difference in your signal to noise ratio it will also help to take a good look at your mics and see if that’s not the real problem.
Chris Church
Church Audio
dude your site is down...
Topic: hiss (Read 2788 times)