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Old 01-03-2004, 06:03 PM
d_matt d_matt is offline
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Default About Zero crossings

I understand that a zero crossing is where the amplitude of a waveform = -inf. What I don't understand is what the direction means and if there is a problem with edits that don't retain the alternating pattern.

Can anyone shed some light?
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Old 01-03-2004, 06:10 PM
Bastiaan Bastiaan is offline
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Default Re: About Zero crossings

Forget all that stuff...either cut in the middle, and if you cant...listen to it. If it crackles/pops...make a very short/fast crossfade (3 milliseconds or so..maybe even less). If it doesnt crackle/pop...its fine...

What you HEAR is what counts...not what you see...
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Old 01-03-2004, 06:41 PM
d_matt d_matt is offline
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Default Re: About Zero crossings

Granted what you hear counts is whats important, but does anyone actually know the meaning behind zero crossings and 'alternating' waveforms?
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Old 01-04-2004, 04:49 AM
Bastiaan Bastiaan is offline
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Default Re: About Zero crossings

i think its like this:

above the middleline its positive and belwo its negative. Its simple the representation of electricity, and audio is always done in AC...because it alternates a lot.

What happens if you cut on a different location as the zero-crossong, and you dont mask it with a quick fade is that the speaker has to jump suddenly to the new location. This simply cant happen because of lawas of physics, but it will produce a pop.
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