[Graham Maynard]

White noise is dynamic, and thus could reveal differences between converter/amplifier stage capabilities, including relative phase shifts.

White noise is not any good in isolation because the 'ear' quickly accepts white noise 'as it is', however with directly switched comparisons it becomes possible to hear subtle differences that sine level measurements cannot reveal.

The cause/meaning of those differences would then need to be investigated, but they would also carry through into music reproduction.

With music comparisons it is easy to miss slight changes at particularly chosen moments of reproduction, also the 'ear' has to wait between listening to samples. Switching between two white noise CD/DAC sources could immediately reveal differences, without needing to select any reference passage.

Just a thought. White noise is excellent for showing up loudspeaker differences that would otherwise go un-noticed.

 

[Graham Maynard]

White noise is dynamic, and thus could reveal differences between converter/amplifier stage capabilities, including relative phase shifts.

White noise is not any good in isolation because the 'ear' quickly accepts white noise 'as it is', however with directly switched comparisons it becomes possible to hear subtle differences that sine level measurements cannot reveal.

The cause/meaning of those differences would then need to be investigated, but they would also carry through into music reproduction.

With music comparisons it is easy to miss slight changes at particularly chosen moments of reproduction, also the 'ear' has to wait between listening to samples. Switching between two white noise CD/DAC sources could immediately reveal differences, without needing to select any reference passage.

Just a thought. White noise is excellent for showing up loudspeaker differences that would otherwise go un-noticed.