On Thu, 05 Apr 2012 09:25:30 +0100, Jim Lesurf
wrote:
In article , Mark Lewis
wrote:
I am buying a laptop to use with a hifi eg iPlayer or YouTube through
line out to amp.
My experience is that it simply 'pot luck' when relying on internal sound
hardware.
Agreed. If the OP has followed any of my recent threads in
uk.tech.digital-tv about digitising my vinyls, most of which have been
cross-posted here ...
http://groups.google.com/group/uk.te...b0aea9e07ab46b
http://groups.google.com/group/uk.re...fb1fd692b2045#
http://groups.google.com/group/uk.te...529e059ddffd8#
.... it'll be realised just how hit and miss things can be. In the
end, I used a Dell Latitude 610 with a docking station to do the job,
and I now use it to play back the results from my NAS server, but it
wasn't plain sailing, by any means. The laptop has an internal sound
card, but I chose not to use it, I can't now remember exactly why.
Instead I tried a SB Live in the docking station PCI slot, and a USB
Terratec Aureon 5.1 MKII. The latter worked, but the former did not:
"""
Next came recording via the laptop.
Having had more success with the SB Live than the Terratec, I thought
I'd better stick with that. Although the docking station was really
bought so that I could connect the laptop instantly to my KVM and
office network upstairs, it has a single PCI slot, so I bad farewell
to convenience upstairs, I put one of the SBs in it, connected up to
the HiFi, and started recording. However, when I checked the
playback, there was a problem with distortion - some albums in
particular were ruined by it.
WTF? Why? And why some albums consistently so much more than others?
The card has been working perfectly well for years in a desktop PC
running Windows v5.0, why not in the docking station of a laptop
running v5.1? Thinking, however, that it might be something to do
with driver versions under XP rather than 2000, I checked for the
latest driver downloads, but those I've been using all along for 2000
are also the correct and latest for XP.
So I tried the Terratec. Success at last!
"Great!", I thought, "I don't need the docking station downstairs
anymore!". So I got the normal PSU for the laptop, and removed the
docking station. Big, big hum! Replaced the docking station. Back
to normal. Removed it again. Big, big hum! Replaced it again. Back
to normal.
I conclude that the DS has a decent PSU, while that supplied for the
laptop is crap.
"""
So, as Jim says, it's really difficult to predict how a
common-or-garden laptop will perform. It might be hopeless with the
standard in-line PSU, but fine when powered by a docking station PSU.
It might be hopeless with its internal soundcard or one in the PCI
slot of a docking station, but fine with a USB one.
In fact *none* of the four 'IBM type' machines I've used in
recent years gave satisfactory results that way.
Doesn't surprise me at all.
I'd recommend:
A) using an external USB DAC. Preferrably one that does the new transfer
modes like asynch/isochronous.
Can't comment on that, but another alternative might be one of the
dedicated AV/NAS offerings running something like a mini-DLNA server
for compatibility with modern digital equipment, but also having
analogue connections for compatibility with legacy analogue equipment.
I've seen a few on eBay.
B) Get one which has no fan, or rarely needs a fan to come on.
Yes, agreed. Both my laptop and my bedroom/office stereo have fans,
and it can very noticeable, particularly with the latter where it
happens on loud passages (I think the fan must be cooling heatsinks in
the power-amp stage), how much noise the fans can make.
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