Re: [Elecraft] Elecraft Digest, Vol 69, Issue 53
This may be OS dependent, or it may be due to hidden sample rate conversions in the drivers. I use the EMU-0202 with Quisk for LP-PAN and Griffin iMic with fldigi simultaneously on Linux and don't notice this level of CPU load at all. Leigh/WA5ZNU N8LP wrote: > > I think you'll find that the FW card takes fewer resources than a USB > card, at least that's what I've found as a general rule. On my system > anyway, the PCI sound cards take the least resources, followed by FW, > followed by USB. The same is generally true of serial ports. If you have a > desktop PC, always lean towards PCI interfaces rather than USB if you have > the slots to do so. > > FWIW, I have 6 sound cards installed on a 2.8GHz P4 without problems, but > the USB cards add about 50% to the CPU load when they're running. > > Larry N8LP > -- View this message in context: http://n2.nabble.com/Re-Elecraft-Digest-Vol-69-Issue-53-tp4489512p4490521.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Digest, Vol 69, Issue 53
My comment didn't address built-in (integrated motherboard) sound cards. I haven't had any trouble testing them, but don't actually use them except for desktop PC sounds and such. 73, Larry N8LP Wes Stewart wrote: > I'm sure you're correct, but I went to the FW card because of problems with > the built-in sound card. Presumably that had the least overhead of all. > > Wes N7WS > > --- On Sun, 1/31/10, Larry Phipps wrote: > > >> From: Larry Phipps >> Subject: Re: [Elecraft] Elecraft Digest, Vol 69, Issue 53 >> To: elecraft@mailman.qth.net >> Date: Sunday, January 31, 2010, 6:56 AM >> I think you'll find that the FW card >> takes fewer resources than a USB card, at least that's what >> I've found as a general rule. On my system anyway, the PCI >> sound cards take the least resources, followed by FW, >> followed by USB. The same is generally true of serial ports. >> If you have a desktop PC, always lean towards PCI interfaces >> rather than USB if you have the slots to do so. >> >> FWIW, I have 6 sound cards installed on a 2.8GHz P4 without >> problems, but the USB cards add about 50% to the CPU load >> when they're running. >> >> Larry N8LP >> >> >> >> Date: Sat, 30 Jan 2010 11:35:17 -0800 (PST) >> From: Wes Stewart >> Subject: Re: [Elecraft] [OT] PCI Express sound card for >> digimodes >> To: w...@q.com >> Cc: elecraft@mailman.qth.net, >> G4ILOJulian >> Message-ID: <262124.96639...@web52303.mail.re2.yahoo.com> >> Content-Type: text/plain; charset=iso-8859-1 >> >> Hi Lance, >> >> Hmmm... I don't think so. The computer has a 2.3 GHz >> Core2 Duo processor and 2 GB of RAM. As I said, but >> not clearly enough, I gave up on the LP-Pan (for now anyway) >> so it wasn't running. The only thing running was >> whichever RTTY/log software and Firefox, which I use for >> looking at Internet spots. Since in some of these >> contests I was in an unassisted category, even that wasn't >> always open. >> >> Regards, >> >> Wes >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> > > > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Digest, Vol 69, Issue 53
I'm sure you're correct, but I went to the FW card because of problems with the built-in sound card. Presumably that had the least overhead of all. Wes N7WS --- On Sun, 1/31/10, Larry Phipps wrote: > From: Larry Phipps > Subject: Re: [Elecraft] Elecraft Digest, Vol 69, Issue 53 > To: elecraft@mailman.qth.net > Date: Sunday, January 31, 2010, 6:56 AM > I think you'll find that the FW card > takes fewer resources than a USB card, at least that's what > I've found as a general rule. On my system anyway, the PCI > sound cards take the least resources, followed by FW, > followed by USB. The same is generally true of serial ports. > If you have a desktop PC, always lean towards PCI interfaces > rather than USB if you have the slots to do so. > > FWIW, I have 6 sound cards installed on a 2.8GHz P4 without > problems, but the USB cards add about 50% to the CPU load > when they're running. > > Larry N8LP > > > > Date: Sat, 30 Jan 2010 11:35:17 -0800 (PST) > From: Wes Stewart > Subject: Re: [Elecraft] [OT] PCI Express sound card for > digimodes > To: w...@q.com > Cc: elecraft@mailman.qth.net, > G4ILOJulian > Message-ID: <262124.96639...@web52303.mail.re2.yahoo.com> > Content-Type: text/plain; charset=iso-8859-1 > > Hi Lance, > > Hmmm... I don't think so. The computer has a 2.3 GHz > Core2 Duo processor and 2 GB of RAM. As I said, but > not clearly enough, I gave up on the LP-Pan (for now anyway) > so it wasn't running. The only thing running was > whichever RTTY/log software and Firefox, which I use for > looking at Internet spots. Since in some of these > contests I was in an unassisted category, even that wasn't > always open. > > Regards, > > Wes > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Digest, Vol 69, Issue 53
I think you'll find that the FW card takes fewer resources than a USB card, at least that's what I've found as a general rule. On my system anyway, the PCI sound cards take the least resources, followed by FW, followed by USB. The same is generally true of serial ports. If you have a desktop PC, always lean towards PCI interfaces rather than USB if you have the slots to do so. FWIW, I have 6 sound cards installed on a 2.8GHz P4 without problems, but the USB cards add about 50% to the CPU load when they're running. Larry N8LP Date: Sat, 30 Jan 2010 11:35:17 -0800 (PST) From: Wes Stewart Subject: Re: [Elecraft] [OT] PCI Express sound card for digimodes To: w...@q.com Cc: elecraft@mailman.qth.net, G4ILOJulian Message-ID: <262124.96639...@web52303.mail.re2.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Hi Lance, Hmmm... I don't think so. The computer has a 2.3 GHz Core2 Duo processor and 2 GB of RAM. As I said, but not clearly enough, I gave up on the LP-Pan (for now anyway) so it wasn't running. The only thing running was whichever RTTY/log software and Firefox, which I use for looking at Internet spots. Since in some of these contests I was in an unassisted category, even that wasn't always open. Regards, Wes __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
