tmtomh
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I did not imply that. My guess would be, separated tests in mono and stereo would be sufficient in order to have a valid result for real source localization formats and phantom localization formats. Any other potential configuration is based on either of these principles or a combination thereof.
You absolutely implied that - as @Mnyb pointed out, the logical implication of your claim is that controlled listening tests are only valid for the number of channels used in that particular test. There is no logical or scientific reason why one-speaker tests would be invalid for stereo BUT 2-speaker tests would nevertheless be valid for 10-channel.
So when you write, “I didn’t imply that,” what you’re really saying is, “I didn’t mean that” - a crucial difference because it means you didn’t think through the implications of what you were claiming.
And that, in turn, is why you then have to write, “my guess is that… would be sufficient.” You’re just making up a scenario for scientific validity (“would be sufficient”) based on what feels like common sense to you (“my guess is…”). This is precisely the lack of scientific evidence, and the kind of unsupported, almost arbitrary pronouncements that @amirm and and others are noticing and critiquing.
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