As an experiment with my SB3, I tried changing the "flc flc" line in
convert.conf as described in bug report # 4886, and that completely
eliminated the stuttering when streaming a 96 KHz Linn Records flac
file to the SB3. I can run the large VU meters screen-saver with no
problem too. Apparently recoding the flac stream to compression level 0
drops the workload on the SB3 sufficiently that it no longer has a
problem. For the 96 KHz 24 bit files from Linn Records I now see a
streaming rate of approximately 2700 kbps!

On the other hand, there remains a high noise floor coming out of my
speaker's tweeters compared to the same file down-sampled to 48 kHz
using Audacity. I think the SB3 is converting/decimating the 96 kHz
stream into a 48 kHz stream in a way that does not result in a
high-fidelity output (dropping every other sample without a digital
filter?) Regardless, it does not sound right, although the stuttering
is taken care of.

I was interested in playing 96 kHz files, because I was thinking that
eventually I might get a TP, but I want to listen to some of those 96
kHz files now:) I don't want to download the 44.1 kHz versions, and
then purchase the higher quality versions later. I was thinking I could
download the high-quality versions now, and play them with the SB3
today, and then take advantage of the higher quality using a TP later.
Hmmm - that doesn't quite work. 

The 96 kHz files sound much better converted to 48 kHz BEFORE they are
sent to the Squeezebox - and that means keeping two copies of this type
of content.

Maybe a good 48 kHz digital filter put into the firmware would fix the
noise floor issue?

-Ron


-- 
Ron F.

*Squeezebox setup:* wireless SB3 -> CI Audio VDA.2 DAC + VAC.1 PSU
*Main rig:* NAD 7600 + NAD 2600A -> Phase Tech PC-6.5 speakers
*Headphone rig:* Headroom Max -> Sennheiser 650s
*Other stuff:* NAD C542 CDP, NAD 6300 Tape, Monster 5100 Power
conditioner, Outlaw Audio cables
------------------------------------------------------------------------
Ron F.'s Profile: http://forums.slimdevices.com/member.php?userid=5616
View this thread: http://forums.slimdevices.com/showthread.php?t=34985

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