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Originally Posted by Refugee
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The problem is that there are truths lurking under all the pseudo science. Sure thermoelectric effects are DC in nature, and at face value have no impact on an AC signal, such as audio. And indeed for domestic audio that is really pretty much the case.
But if you were designing something using a 20 bit A-D (they are now available to 24-bit) thermoelectric effects are very real and can easily mask the lower bits with DC offset. See for example the attached.
Craig