"Rob" wrote in message

On 08/04/2010 18:42, Arny Krueger wrote:
wrote in message


Rule number one is that when you do comparisons like
this, you take the high sample rate file and downsample
it yourself, which is easy to do with free software
that can downloaded from the web.

Why's that - are Naim not to be trusted?

Nothing specific about Naim, just that major producers
sometimes produce different technical renderings or
masterings of the same basic music work in different
formats. They may sound very similar, but never exactly
alike because they were slightly or significantly
different (it varies by work and format) prior to being
recorded in the various audio formats. It is common to
re-master musical works for distribution in a new
format.

I would have thought it was recorded in one, 'hig def'
format, and then downsampled.

Just wondered if there were any examples of distributors
meddling with the two versions.

I did a spectral comparison of the two "test-1" files. There were major,
multiple-dB, multi-octave-wide differences below 80 Hz and above 7 KHz..