noise in line

Talk about your MIDI interfaces, microphones, keyboards...

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Fresco_Armagedão
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noise in line

Post by Fresco_Armagedão »

Dear friends,

I would like to know if it is possible somehow (*and without having to buy a external audio card or a mix table) to reduce or kill the noise that stays behind when i try to record a microphone or a guitar to my pc via the mirophone hole.
Thank you very much,
I ´ve learned a lot here and i am always suprised how fast awnsers come.

Thanks again.

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lilith
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Re: noise in line

Post by lilith »

Recording through the mic jack on the Laptop is the worst thing you can do. A cheap interface starts at around 30€, a mic from e.g. Behringer is < 20€. You can try recording the hiss alone and subtract the signal from your recording e.g. in Audacity or you could use an EQ to filter out the hiss frequencies. There are also plugins to remove hiss, e.g. from AIRWINDOWS.

see also this discussion:
https://discourse.ardour.org/t/reducing ... ic/85390/7

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CrocoDuck
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Re: noise in line

Post by CrocoDuck »

There is a noise reduction functionality in Audacity. I would also recommend having a look at these two plugins:

https://github.com/lucianodato/noise-repellent
https://github.com/lucianodato/speech-denoiser

Death
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Re: noise in line

Post by Death »

First of all, check what bit depth you're recording at. If your soundcard can do 24 bit, then use it. That'll lower the noise floor. Try not to record too quietly either as that causes more audible noise in the recording. But obviously don't go above 0db when you record because that will cause nasty clipping issues.

Aside from that, you can do what others have suggested to reduce noise. The only tools I know of for this are Windows/Mac ones. But some good ones are iZotope RX and Acon Digital Restoration Suite. There are plenty of other tools though..

Cheap soundcards often have a lot of a noise in them so that's why good interfaces/pre-amps are good. You can also get interferance from other electronics. Using balanced cables can help if that's possible for you.

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