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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: What's verted and what's inverted on a CD mean? posted by Poles Apart on August 31, 2014 at 13:20:45:
"Wouldn't it depend on how your system is set in its polarity?"
The bottom line: Is the acoustic "direction" from the performers the same as that from the speakers in the end-user's system? (For example, is the air is pushed out from a drum strike presented as the air pushed out from the end-user's speakers? If the speakers produce the signal by pulling back air, then the presentation is inverted.) The recording process and end user's system have inverted the signal a total of x number of times. As long as "x" is an even number, the listener will be served the signal in its original non-inverted state. But if "x" is an odd number, then the listener will be served the signal inverted relative to the original state.
If you break down the whole process to the recording process (call it x1) and user's system (call it x2), ideally, x1 and x2 are both even numbers. A non-inverted recording and a non-inverting system. But if that non-inverting system plays an inverted recording (which do exist), the end user will have to temporarily change x2 to an odd number (usually by reversing the +/- polarity of the wires at the amp or speakers) in order to take in the recorded performers with correct non-inverting polarity.
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Follow Ups
- RE: What's verted and what's inverted on a CD mean? - Todd Krieger 12:18:44 09/01/14 (0)
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