In article , Bob Latham
wrote:
In article , Jim Lesurf
wrote:

The big advantage of using ethernet-based 'just a filing system'
methods is that you can dodge such nonsense. But may then not know if
the actual playout device *is* playing without tampering with the
samples. Depends, as ever, on the device and its design.

I know Sonos Connect doesn't re-sample as enough people have done bit
perfect tests on it from its digital out.

OK. :-)

My Linn Akurate does re-sample everything up to I think, 384KHz before
feeding its DAC. That doesn't concern me as TBH I love the thing.

The Linn upsampling to 384k is unlikely to give any problems with sound
quality. The main problems tend to be in consumer kit that blindly does
needless conversions like 44.1k - 48k at low resolutions.

As a general rule, the lower the input and output rates and the 'closer'
and more awkward their ratio, the harder it is to do a good conversion.

The chalk and cheese here is :

1) Modern DACs and ADCs of good quality often 'upsample' to high rates (and
these days many-bit values). This lets them work with great accuracy.

2) Crappy consumer kit may simply do little better than linear
interpolations with low rates and low resolutions. This makes the results
poor.

Jim

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