Noise Reduction Process

Shampak Chakravorty posted

All this while I have been thinking & experimenting a lot with the help of people like George & online videos to get a grasp on the technique to improve vocal signals for people having very moderate hardware setup like me. Process of Noise reduction helps remove the distorting frequencies being created by Fans, Ac, Cpu Fan, SMPS fan, etc which gets mixed up with the vocals or instruments which are being recorded through the soundcard. All we do generally is mute the parts where there are no vocals or instruments are present but actually we fail to remove the noise from the whole body of the track. So how to remove it? The answer is Noise Reduction Process. Yes it is as easy as it sounds. Few softwares like Adobe Audition 3 comes with a VST known as Noise Reduction. All we have to do is to select a small area, not too less not too much & select Capture Noise Reduction Profile & then it captures the distorting frequencies there. Then select the entire file & hit ok. All those distorting frequencies are almost gone from the entire file as those frequencies captured by the Noise Reduction Profile will be of the same frquency range throughout the track. There are a few setting which you can tweek to get even a better desired result. Like increase the negative value of decibles by which the noise is going to be reduced, attack rate, percentage, etc. I hope with this method many suffering from background noise & resulting in a distorting mix will get immence help in achieving a much more clearer signals without much of the disturbing noises.

I invite everyone in Muziboo to participate in this discussion actively & share their knowledge with everyone.

Regards,
Shampak.

Posted on September 04, 2009

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Showing 8 - 9 of 9

Jim Brown said

I’ve tried using noise reduction plugins like BIAS’ Soundsoap, but I haven’t been happy with the results so far (you mileage my vary though).

My approach lately has been to try to reduce the amount of noise at the source either live or in a home studio:

- mic placement is everything use cataroid or supercataroid mic patterns and point the mics at what you are recording, and away from the noisy things (the crowd, traffic, noisy PC, TV in the other room)
- when recording live, put the mics up at the front of the hall, not the back or in the crowd
- when recording live, use compression/limiting to make sure you don’t overload (spike) during the loud parts of your recording (the crowd cheering, drum hits, etc.). If you get static in your recording from recording with the levels set to high, it’s very difficult if not impossible to remove it without professional tools
- don’t use hand-held mics to record
- put mics on mic stands, away from people talking, clinking glasses, etc.
- at home, get a quieter pc
- at home, shut off stuff like clocks that tick or chime at the top of the hour
- record at times of the day when nobody is at home other than you, less traffic driving by, etc.

Posted over 2 years ago

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