Cable Pathways Between Audio Components Can Affect Perceived Sound Quality

[opus101]

I started watching and paused it once he got into talking about 'beliefs'. A complete red herring.

 

Curiosity got the better of me and I played a bit longer. Had to stop though where he claims 'wire can't add noise'. I take it he's never heard of 'common ground impedance coupling'.

[opus101]

7 minutes ago, pkane2001 said:

Or perhaps he is simply saying that a wire is not an active component and can’t generate noise all by itself. Noise can be introduced from the outside, but not generated by the wire.

 

Strictly speaking all wires have resistance so do generate noise 'all by themselves' - but normally that noise is negligible in the context of audio ICs.

 

I haven't watched the video beyond where he said 'wires can't add noise' but his line of thinking leads me to formulate a hypothesis. I am predicting that his testing of wires is not done in-circuit, in which case he'll completely miss the elephant in the room which is the aforementioned common ground impedance coupling.

 

Anyone watched it all and can confirm or deny my prediction?

[opus101]

6 minutes ago, pkane2001 said:

Again, such noise is not generated by the wire but by the circuit the wire is connected to.

 

Not from the circuit in the case of triboelectric effects, no. Its definitely from the insulation over the wire.

 

https://iopscience.iop.org/article/10.1088/0022-3727/20/5/002/pdf

[opus101]

Ah maybe we mean different things by 'wire' - I am meaning the whole interconnect, perhaps you only mean the copper conductor part. I shall change to 'cable' in future to avoid such misunderstandings.

 

When I say 'not from the circuit' I don't include cable insulation as part of the circuit. The circuit to me is amps, sources etc.

[opus101]

13 minutes ago, March Audio said:

I have very direct experience of this from jet engine testing.

 

Completely OT but I used to design tacho processing for jet engine testing.