 |
Positive Feedback ISSUE 57
september/october
2011
 |
Creating a
PC-Based Music Server on a Budget - Further Adventures
by Tom Gibbs

Little did I know when I started
this project less than six months ago what an incredibly rewarding obsession it
would become—with a few caveats, of course. I fully realize now that choosing
a computer to use for a music server can be a totally polarizing decision, and
that camps have formed on both the Mac and PC side, with each camp touting the
unique benefits and advantages of their chosen OS. I actually occupy a
relatively unique position in this war of operating systems; I'm a Jekyll and
Hyde sort of figure—for the last fifteen years I've been a Mac operator by
day, and a PC person by night. The PC part is really not by choice, it's pretty
much been dictated by my personal finances, but computers have always been to me
more of a means to an end by day; my nights were reserved for my real
love—listening to music. And with the continual improvements in Windows
technology and the conversion of Macs to Intel processors, the differences
between the two are far less than they once were—with the exception of price,
of course. The typical PC retails for about 1/5 the cost of a similarly equipped
Mac. And during my frequent visits to the net, I see just as many people
struggling to get bit-perfect sound from Macs as from PCs.
My original investment in this
project (especially considering the inherited PC) was minimal at best, with less
than two hundred dollars for memory upgrades and a monitor—the only real
expense was for the Music Streamer II. After becoming increasingly unhappy over
a couple of months with my hand-me-down PC's relatively restricted level of
performance, I caved in and headed to Microcenter, where I found a refurbished
HP s5703w, with 4 gigs of RAM, a 500 gig hard drive, and a dual-core processor,
running Windows 7, 64-bit—for only $225! With Windows 7 and the dual-core
processor, I expected a tremendous leap in performance, as it would finally give
me access to WASAPI—Windows Audio Session Application Programming Interface,
which allows the computer to control the data stream path from the music player
application to the audio device, guaranteeing bit-perfect playback through
Windows 7 and Foobar 2000.

Although WASAPI was first introduced
with Windows Vista—which I was running in my music server's first incarnation,
some structural inconsistencies in that machine's processor prevented me from
upgrading it to Vista Service Pack 1 (necessary for accessing WASAPI) despite
prolonged and repeated upgrade attempts. I was forced to use ASIO, and while I'm
convinced I was getting bit perfect playback from ASIO with the previous PC,
it's really nice to have another application to compare and contrast source
material. And as unlikely as it seems that there would be differences between
two bit-perfect devices, I do hear differences, and thus far, WASAPI seems to be
the winner—it seems to offer greater sonic transparency to everything I've
played—in 16-bit formats, at least. ASIO seems a bit hotter in playback, and
on most files I definitely prefer WASAPI, which seems to offer a more effortless
performance. I'm still having problems with stuttering artifacts with 24-bit
files through WASAPI (with Foobar)—nothing I've tried seems a definite fix, so
I still switch back to ASIO for 24-bit files. Foobar 2000 offers plug-ins for
both ASIO and WASAPI, making A/B comparisons and switching quite easy. Hell,
I've switched back and forth so freakin' many times, I'm beginning to abandon
any certainty as to which application I really prefer! At least they
both work to provide exceptional sound in my current implementation scheme.
Further Explorations
I've been doing further research,
reading just about everything available on the net regarding digital music
streaming, and I've come across quite a few good ideas that have greatly
enhanced my music playback. One of the first changes I made was with the
addition of the new PC—which despite being a slimline, compact machine has
multiple cooling fans, and is considerably noisier. The previous PC had only one
fan, and was whisper quiet, and during playback of low-level material, was
virtually inaudible. That isn't the case with the new machine—it's not that
loud, but nonetheless compromised my enjoyment of low-level information, so I
made the bold decision to relocate it to an adjacent room. Of course, this would
require some serious rewiring; I needed at least the monitor, mouse and keyboard
available in the listening room, and an unrestricted path from the Music
Streamer II to my preamp. I had a fifteen-foot Belkin USB cable on hand, and a
fifteen-foot VGA extension cable for the monitor. I ended up relocating the ATT
network hub from my listening room into the adjacent room in my basement to
accommodate the new setup; this turned out to be relatively painless, with about
a ten-foot distance between the PC and my preamp. I located the Music Streamer
close to the preamp, and connected the 15-foot USB cable to the PC.
This setup seemed to work pretty
well; and it was really quiet in the room, but I wasn't totally convinced
that the sound I was getting was quite as transparent as prior to moving the PC.
Some further surfing on the Audio Asylum blog offered quite a few opinions on
optimal length for USB cables in use with USB DACs, and the consensus was that
15-foot cables, while OK for data transfer, are less than optimal for use in
music applications. The general recommendation was to use a shorter USB cable
with longer stereo interconnects, and I happened to have a decent pair of
three-meter Monster interconnects on hand. This required me to move the Music
Streamer II to the adjacent room with the PC, but truly made all the difference
in the world—the sound was now returned to its previous level of immediacy and
transparency. Of course, I miss the MS IIs' LED display, but it's a small
sacrifice to pay for improved sound. I can upgrade the Monster interconnects
later with something slightly more refined, and I'm already looking at a better
half-meter USB cable.
There were other minor
complications; my monitor extension cable was obviously not triple-shielded, so
I had some ghosting issues, but I was able to obtain a better quality cable that
solved the problems for only $20 on Amazon.com. I was also able to employ the
now unused 15-foot USB cable in tandem with an additional 15-foot USB extension
cable ($7 on Amazon) to extend my keyboard's range; maybe a wireless setup is in
the not-too-distant future! At least, at this point, I could spend most of my
time concentrating on finding more new and legacy music to add to my collection—so much of my music collection is on vinyl that sometimes it can be quite a
daunting challenge to find digital versions of my favorite LPs. And, of course,
until my very recent experience with the music server – why would I want to?
Tracking Down Some Old Favorites
I've recently been able to locate
some discs that I consider either true classics or just plain guilty pleasures.
Probably the one disc I've just about played to death after conversion to FLAC
is Michael Hedges' guitar masterpiece Breakfast In The Field, which
sounds shockingly close to the vinyl – only minus any ticks, pops or
post-echo effects. At seven bucks, I consider the CD a major score; my near-mint
vinyl copy—which has a few issues—cost me twelve, plus shipping! The thing
that still gets me every time is how analogue-like the sound is; the level of
hiss is virtually identical to the vinyl, and the virtuoso playing of Michael
Hedges excites room modes in ways that eerily parallel the vinyl version.
Falling more squarely into the "guilty pleasure" arena is Gino Vanelli's 1978
classic Brother To Brother, which found him offering an entertaining
mixture of power-pop ballads and extended fusion-esque jams such as the title
track. The sound is remarkably robust, easily rivaling my slightly dished LP's
presentation, and Carlos Rios (Bowie's guitarist at the time) just wails on most
of the tracks.
I've also started looking much more
closely at thrift store CD offerings; in the recent past, I totally ignored
them, although most of the thrift stores here in the metro Atlanta area have an
abundance of CDs priced at a buck or so. A recent trip to a thrift store that
serves a local animal shelter turned up CDs priced at 6 for $5; I scored six
Depeche Mode discs, and while the cases were a bit ragged, the discs themselves
were virtually in perfect condition. I also found standard jewel cases at Frys
$15 for 50 cases—making it really easy to get the CDs back into more
acceptable condition. Depeche Mode may not be everyone's cup of tea, but makes
for some pretty cerebral and entertaining listening – I especially enjoy 1989's
Violator and 1997's Ultra. Besides some toe-tappingly good songs,
they also both contain some pretty challenging transients that will totally rock
anyone's system. The "Waiting For The Night/Enjoy The Silence/Policy of Truth"
sequence makes for a staggeringly good listen—and I don't have to get up
midstream to flip the LP!
I've also been looking through
bargain bins at my local WalMart and Barnes and Noble—they've had a lot of
Warner and Sony/BMG titles over the last few months for $5 each, and while
digging through the massive cardboard bins can be pretty challenging, the
rewards have been remarkable. I've turned up three Linda Ronstadt titles;
especially impressive are 1974's Heart Like A Wheel and 1977's Simple
Dreams—they both sound better than ever, especially Heart, which
through the music server is quieter and more dynamic than the vinyl. Linda's duo
with Emmylou Harris, Hank Williams' classic "I Can't Help It If I'm Still In
Love With You" has me hitting the replay button every time—the blending of
those two voices is absolute ear candy! I've also found several James Taylor
titles, as well as ZZ Top's Deguello and titles by Yes and Jeff Beck. And
while some of them have been remastered, most have not, but they still sound
uniformly fabulous, especially the discs that feature vocals; James Taylor's
Sweet Baby James just exudes the kind of in-your-room realism I never got
from listening via a CD player.
A Unexpected Paradigm Shift
I really didn't expect much from
this experiment at the outset; at best, I hoped for improved CD playback, and
not much else. What I didn't expect was that the level of enjoyment I soon found
myself getting from digital files would so totally challenge my fundamental
beliefs about music playback in general. Granted, I've always felt positively
about SACD and higher resolution digital disc playback from day one, but just
never believed that CD-quality digital was capable of offering anything
approaching musical satisfaction—at least, within my limited budget. That
belief has been quashed by this experience; that a total expenditure of less
than five hundred dollars would offer sound from 16-bit files that challenges SACD and vinyl in terms of resolution of sound and sheer musical enjoyment is
almost unfathomable—but that has indeed been my experience. And of course, my
enjoyment of 24-bit sound is totally off the charts! Repeated listening to CDs
and FLACs created from CDs has me hearing musical details that were either
blurred or totally obscured by my previous CD playback, and I now truly believe
that satisfying musical reproduction can be obtained from 16-bit sources with
proper digital-to-analog conversion.
I recently noticed the appearance of
the "Ask Dr. Digital" column here at PFO and it appears to me that Dr. Digital absolutely delights in bashing low-cost
digital gear. He essentially states that it's impossible to build gear that
retails for $299 and under that offers anything approaching audiophile
performance, that the Music Streamer is plagued by "distortions and
colorations," and that you'd be better served by spending your hard-earned dough
for a $1000 DAC. While I don't disagree that the level of parts and
construction in a thousand-dollar DAC should easily outperform any three-hundred
dollar DAC, I just don't believe it's fair to dismiss the $299 DAC out-of-hand
so quickly, especially after evaluation on a modest "office system." Most "office systems" I've had experience with sounded
"muffled, rolled-off and
wooly" compared to my home system, and didn't really offer what I'd consider a
reasonable basis for serious evaluation of any component.
And Dr. Digital was referencing the
$349 Music Streamer II+. My truth is, the $149 Music Streamer II has
brought some amazing new digital music into my home system, and has renewed my
interest in much of my seriously neglected digital music in a way I'd never
previously thought possible. And based on Dr. D's analogy of parts
cost-to-finished product cost, that's with about $40 worth of digital to
analogue conversion. And yes, his performance charts show the obvious
inferiority of the MS II+ to much more expensive DACs, but I've never been one
who totally correlated equipment tests with musical satisfaction. The analog
output from the Music Streamer II just sounds like music!
The Music Streamer II+ arrives
Scot Markwell with Elite AV
Distribution had promised me a review sample of the upgraded Music Streamer, the
Music Streamer II+, which he claimed bettered the already good MS II by a wide
margin. When months passed with no further word—and not really being one to
nag—I just assumed that it wasn't going to happen. No real matter, I couldn't
be happier with the performance of the MS II, and couldn't really see how a
couple hundred dollars could improve on the already superb MS II that
significantly. A month ago, I got the email that it was on its way, and I've
spent the last few weeks in serious evaluation mode.
Is the MS II+ that much better? Yes,
in a nutshell. The differences between the baseline Music Streamer II and the MS
II+ are subtle, though significant. While each shares the same basic character
of sound, the MS II+ is just a tad more analogue-like in its presentation; the
sins of the baseline MS II are more that of omission than any particular trait
that called attention to itself. The $349 Music Streamer II+ offers the
slightest bit more delicacy and air to the musical textures; one of the most
striking differences is in the more natural decay of sounds, which is strongly
more analogue in character. You don't have the heavy digital fade-to-black so
typical of CDs—the presentation is much more similar to that of an LP. When
A/Bing between LPs and CDs with the MS II+, the differences are much less
apparent than with the baseline MS II—although still very subtle.
Another area in which the Music
Streamer II+ excels over the baseline MS II is in its ability to reproduce
complex musical passages. One of my fairly recent classical favorites is the
Deutsche Grammophon SACD disc of Ann-Sophie Mutter playing Tchaikovsky and
Korngold's Violin Concertos; it's a dynamic and fabulous performance, so I
thought it would be really interesting to rip as a FLAC for comparison purposes.
Through the MS II, it sounds fantastic; and although only a 16-bit rip, it still
compares favorably with the SACD in terms of sheer dynamic range and clarity of
sound. The second movement of the Korngold concerto is very melodic and lilting,
and it's a real temptation to crank up the volume and let the delicate solo
violin and string orchestration just wash over you. However, the third movement
Finale comes in suddenly with brute force forte orchestration, and
will challenge any amplifier and speaker system's limits. The Music Streamer II
handles this transition with no signs of strain whatsoever, and comes very close
to the SACD in character. Through the MS II+, the presentation is virtually
indistinguishable from the SACD; the delicacy of the musical textures are finer,
with more effortless peaks than through the baseline MS II, and the overall
sound seriously rivals the analogue-like quality of the SACD.
I'm still extremely happy with the
Music Streamer II; it has lifted my CD-based playback to an unexpectedly high
level of enjoyment. And the ability to playback 24/96 digital files opens a
whole new world of musical opportunities. But I'd easily pay the extra $200 for
the upgraded MS II+; at $349, it's a real steal, and will lift your current CD
and digital playback even higher. Would I buy a thousand-dollar DAC? Of course,
if the budget allowed, but until I reach that point, the Music Streamer II's
performance is acceptably superb for $150; the Music Streamer II+'s performance
is magnificent for $200 more.
In conclusion
This is an exciting time for
audiophiles; at the same time, it's a pretty scary time as well. With most of
the accepted practices we've come to expect as the norm seemingly disappearing,
probably the most troubling one to audiophiles is the apparent transition from
disc playback of various forms to manipulation of digital music files. There's
something strangely comforting about holding a CD or LP in your hands, whereas
FLACs and such are just out there in cyberspace—at least you can see a visual
on your computer's monitor.
Twenty years ago I was in a record
shop looking for a Sonny Rollins LP, when the clerk handed me the equivalent CD
and instructed me to "just enjoy the music." When I made it clear that I was
looking for the LP, not the CD, he retorted "It's just an object, man. You're
just looking for an object. You don't care about the music. It's just an object
to you." That struck a chord with me then, and it's especially thought-provoking
now, in an era when those objects soon may no longer exist. Playing an LP was
part of a ritual of cleaning and careful handling that ultimately resulted in
the music, with perhaps a few warts in tow. Now, with a few mouse clicks, we get
the music, generally wart-free. And that's what it's all about, right? The
music, man, the music!
|