Taperssection.com

Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: page on November 10, 2011, 01:55:59 PM

Title: DC Offset with Horns?
Post by: page on November 10, 2011, 01:55:59 PM

I know that horns create an odd looking wav form which is lopsided on the push side. I recently did a tape where I've got an 9 piece jazz band (8 brass, with a set of drums). The drums look normal, but the brass doesn't (so far so good). When I run DC offset, it shifts to where the brass looks less strange, but now the drums are offset, sometimes.

So in this instance, is it just not worth doing a DC offset? Does it actually improve headroom or is it a waste in this case? My gear is solid, so I'm not worried about electrical offset being created upstream. I don't think it matters, but if someone can confirm, I'd love to know.

Title: Re: DC Offset with Horns?
Post by: hi and lo on November 10, 2011, 02:37:56 PM

I would say that if your signal chain does not normally produce DC Offset, you should leave it 'uncorrected.'

Title: Re: DC Offset with Horns?
Post by: Chuck on November 10, 2011, 02:47:19 PM

Check out this page:
http://www.audiomisc.co.uk/asymmetry/asym.html

Certain instruments produce asymmetrical WAV forms. It's not always DC offset.

Title: Re: DC Offset with Horns?
Post by: page on November 10, 2011, 02:51:59 PM

Quote from: hi and lo on November 10, 2011, 02:37:56 PM

I would say that if your signal chain does not normally produce DC Offset, you should leave it 'uncorrected.'

that makes sense, just had a brain fart when I was working on it last night.

Quote from: Chuck on November 10, 2011, 02:47:19 PM

Check out this page:
http://www.audiomisc.co.uk/asymmetry/asym.html

Certain instruments produce asymmetrical WAV forms. It's not always DC offset.

yeah, I knew lots of brass horns created this odd looking wave form when close miced, and izotope wants seems to to treat it as offset which is what threw me off.

Neat site though, thanks!