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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: How to measure absolute polarity? posted by jeromelang on March 28, 2022 at 02:38:53:
Due to vague nomenclature.
What you are asking (I think), is about the absolute phase of the recording, or possibly your stereo, where the speakers start with a pull instead of a push. Some equipment will invert phase, but this is usually the domain of the recording. This is a royal mess, and I gave up on it decades ago for reasons mentioned below. I don't know if this can be measured, but it can be heard by some people.
As for the Sheffield/XLO disc, I believe this is phase of the speakers relative to each other.
From the pamphlet:
"If the elements of both the Left and Right loudspeakers move IN THE SAME DIRECTION (forward) for a given [positive] signal, and do so at the time, the speakers are IN correct relative phase. If they move in OPPOSITE directions (one forward, one back), they are OUT OF correct relative phase."
The key word is *relative*. This is more like if you switched the wires (+, -) on only one speaker, whereas absolute polarity would be like switching the wires on BOTH speakers. This is very audible.
That's my take on it anyways, FWIW.
Jack
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Follow Ups
- There may be several issues being discussed here - Jack G 03/30/2207:11:37 03/30/22 (1)
- See my post below regarding parts B and C of the XLO out of phase track. Nt - geoffkait 08:19:31 03/30/22 (0)
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