Loki Davison wrote: > On Wed, May 28, 2008 at 3:33 PM, Al Thompson <biggles58@xxxxxxxxxxxxx> wrote: >> >> ----- Original Message ---- >> From: Loki Davison <loki.davison@xxxxxxxxx> >> To: schoappied <schoappied@xxxxxxxxx> >> Cc: Al Thompson <biggles58@xxxxxxxxxxxxx>; >> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx >> Sent: Wednesday, May 28, 2008 1:04:58 AM >> Subject: Re: hardware: recording voice and acc. guitar >> >>> wow. This is so wrong it hurts... You say phantom power not possible >> >from a pci slot or computer power supply but with usb mixer? ARRG! USB >>> is a great way to plug in your mouse. For audio, go pci, or if you >>> can't got pci, firewire or pcmcia. >>> >>> 10 channel in 14 out. and yes, to Al, ......... phantom power on both >>> mic pre's from a pci card! wow.... like standard... The linux mixer >> Just out of curiosity, where is the 48V coming from? There is no 48V >> available internally. There is 12V, if you want to limit yourself to AKG >> and Shure mics, but I wouldn't want to draw that much current from a >> computer supply. http://en.wikipedia.org/wiki/DC-DC_converter http://en.wikipedia.org/wiki/Boost_converter How do you think a bus powered USB device does it? USB bus power is 5V. >> >>> usb = crap. Oh, just in case you missed it. I think usb is a bad choice. >> What's your dislike of USB? You can do 2x2 even over USB 1.1. Until the >> latest version of the Firewire standard, it couldn't hold a candle to USB. my firewire alarm triggered here... What latest version are you talking about? The 1995 version (400Mbit/s) can handle >200 channels at 48k, providing both phase and rate accuracy for all channels throughout the system. There is not a doubt about the fact that FireWire is technically superior to USB in general, and definitely regarding audio. A more recent version (1394b-2002) has commercially available products at 800Mbit/s (400 channels), and specified up to 3.2Gbit/s. Let me give you some arguments pro firewire: * globally available clock (relative AND absolute timing) * guaranteed bandwidth * (1394b) support for redundant connections * (1394b) optical fibre support I could go on for a while, but it's not really worth it. The only 'superiority' of USB is in the cost department. Greets, Pieter _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
