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Clicks on exported WAVs

7 replies [Last post]
dbfreedom
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Joined: 04/17/2010

Hey all.

This problem seems to happen every time I export a song. There are seemingly randomly placed high frequency clicks here and there in the exported pattern, which weren't there when I listened in Hydrogen. Anyone else found this? Even better, anyone else know how to fix it?

Cheers folks.

mauser
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Joined: 03/30/2010

Hi!

We need more details about your hydrogen version!

dbfreedom
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Joined: 04/17/2010

Sorry dude! It's 0.9.4-svn, on Windows Vista.

mauser
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Joined: 03/30/2010

Sorry, Windows versions are not supported at the moment..

MichaelPhipps
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Joined: 04/17/2010

The clicks are caused by distortion. When you play back, watch the mixer master. If the number in the blue area hits > .99 the sound will distort and create the click you are talkng about.

I just want the sound I am hearing through my speakers to be the sound that is exported to the .wav file, but I think ultimately it is due to the unsupported windows version. I'm going to see if the same problems exist under linux.

wolke
wolke's picture
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Joined: 03/30/2010

linux version 0.9.4 do the same thing. maybe there is an second problem with the export algorithm. if an clipping occurs that mean values > 1 or < -1, then the computed value get the opposite algebraic sign. that produced a really bad pop or click sound. so its really important that you try to beware h2 export clippings. or you can correct all clippings using the pencil tool from audacity.

h2 clipping:
[img]http://popez.org/~wolke/hydrogen/images/pre-clipp.png[/img]

post audacity penciltool:
[img]http://popez.org/~wolke/hydrogen/images/post-clipp1.png[/img]

wolke
wolke's picture
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Joined: 03/30/2010

the algebraic sign problem is fixed since changeset 687.
so clippings only clippings and the signal don't jump around from +1 to -1 or -1 to +1 anymore.