-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Frank Barknecht wrote: > Hallo, > Arnold Krille hat gesagt: // Arnold Krille wrote: > >> Most (all?) internal soundcards don't pick up the acoustic sound of >> the fans but the electric noise of fan, disks (cd/dvd included), >> mouse, key, everything that send digital data through a poor >> shielded or unshielded cable inside the computer. That is what you >> hear if the soundcard doesn't provide enough shielding itself. And >> sometimes (read on some soundcards) you can even hear the power >> fluctuating when fans/processors/disks need more/less power. >> >> That is the added effect why I think external soundcards (with >> external power?) are better then internal ones. > > I've *never* had this problem with my M-Audio Audiophile, and I have > loud good speakers and headphones so I'm sure I would have heard it. > > (Semi-pro) PCI-soundcards generally are free from intercepting > electrical noise. Otherwise you'd have to close down most sound > studios and our radio station: there are PCI cards all over, but not a > single USB card in sight. I've had some hum problems while recording audio with a PCI E-MU 0404. In the same box, with an M-Audio Firewire Audiophile, the sound was pristine. All coming out through a set of 8" M-Audio far-field monitors. The Audiophile was a great experience, while the E-MU was very disappointing, even though the on-board DSP is nice. > Of course one thing that's strictly forbidden would be to run a cable > from the CD/DVD drive to the soundcard as this acts as an antenna to > pick up noise. But only "consumer cards" even have a connector for > this junk, most internal semi-pro soundcards starting at around 70 > Euro like the Terratec Phase22, M-Audio Audiophile, ESI etc. don't > and they are shielded well enough to not pick up noise. > > Onboard cards are a different story: For laptops I've yet to find a > machine that wouldn't need an external USB/FW-box. > > Ciao Cassiano -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFG5W3Sq4Bz51JiUuERAg0PAKDKEOD8u/h+8unOPo1qUCcO5tjxtACg7gtx Mxvcb/+lPAWG1qyNb/+9Dfg= =B7Ca -----END PGP SIGNATURE----- _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
