Twisted pair cancels the mutual inductance hence cancels the RADIATED EMI as well as Conducted EMI, but at the same time reduces the interference from other stray fields to some extent.
Shielding with mesh or braid locks the core conductor inside an electrical field which acts as a barrier for stray signals from contaminating the audio signal being transmitted by core conductor.
Using twisted pairs without shielding in sensitive areas such as phono to preamp interconnection can result in HUM & Noise.
Kiran,
You have already answered your query, why snake oil is confusing your scientific approach ?
Shielding with mesh or braid locks the core conductor inside an electrical field which acts as a barrier for stray signals from contaminating the audio signal being transmitted by core conductor.
Using twisted pairs without shielding in sensitive areas such as phono to preamp interconnection can result in HUM & Noise.
Kiran,
You have already answered your query, why snake oil is confusing your scientific approach ?