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dvlchkn
Location: United Kingdom
Posts: 13
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 Posted - Sun May 11, 2003 12:25 pm
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I'm loading 2 tracks into the multitrack editor. Both tracks have no clipping. When I mixdown these two tracks (with no further editting) & run a stats check, the amount of clipping occurring seems to go through the roof! (on both channels) :(
The only thing I can think of is because there's perhaps too much 'bottom end' on the 2 tracks & merging them messes things up.
Any bright spark out there who can offer any ideas as to why this is happening?
Cheers, it's got me perplexed.
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SteveG
Location: United Kingdom
Posts: 6695
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Posted - Sun May 11, 2003 2:11 pm
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I don't know about 'bright spark'... but what you are describing is quite normal. When you add two or more signals together, if there is any significant degree of similarity to them, the resultant signal will be larger - by anything up to 3dB for two signals, and more than this for a greater number.
But with a bit of care, this doesn't matter. If you do your mix in 32-bit (so you get a 32-bit resultant file in edit view), this will be in what's known as a Floating Point format, which can be rescaled - in other words, it doesn't really clip, even though it might look as though it has! If you normalise this file to 0dB, the clipping will disappear, and you will have a mix that is the one you want, without overload.
The alternative is to reduce the level of the two sources, and then do the mix. If you reduce each one by a few dB, then you shouldn't get clipping in the mixdown anyway.
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dvlchkn
Location: United Kingdom
Posts: 13
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Posted - Sun May 11, 2003 3:54 pm
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Yeah that's what I had to do, lower the levels of the two tracks in question before I mixed down. Just couldn't understand why it was happening.
Many thanks for straightening things out! 
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Syntrillium Support
Location: USA
Posts: 165
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