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Choosing A PC Audio Interface: The SOS Guide. Audio Interfaces. USB 1.1 is perfectly adequate for running a stereo in/out interface at the 24-bit/44.1kHz that most musicians still prefer, or 24-bit/96kHz for either recording or playback (but not both). Or wants to share a single interface between a Mac and PC.
4x6 FireWire Computer Audio Interface TAPCO Link.FireWire Capture your ideas-wherever you may be.The Link.FireWire 4x6 audio interface is an ultra-portable and superb-sounding recording solution for musicians, composers and producers. The Computer Audio Interface Guide This guide covers computer audio interfaces (sometimes referred to as 'I/O's or 'breakout boxes') for PC or Mac. These provide audio input, output and additional features which improve upon any built-in audio jack.
Buss-powering USB and Firewire peripherals from a laptop seems like a good idea, cutting down on annoying power supplies and keeping everything portable - but it's not quite as straightforward as you might imagine. Many musicians buy Firewire audio interfaces with a view to buss-powering them from their PC. This is certainly convenient, saves plugging in yet another wall-wart, and ensures that the interface powers up and down safely with your PC. However, while the 6-pin Firewire ports found on desktop PCs do offer buss power (as do the 6-pin ports on Firewire-to-PCI and PCI Express adaptor cards), unfortunately the 4-pin Firewire ports found on the vast majority of PC laptops don't provide it (one of the few that does is Samsung's X50, which offers a single 6-pin powered port). Adding three 6-pin Firewire 400 ports to a PC laptop is easy with this PCMCIA adaptor from Belkin, which has its own 12V DC input so that you can either plug in a mains wall-wart PSU or use a battery to provide buss power for Firewire peripherals. This is indeed frustrating, but is fairly easily explained. Typically, 6-pin Firewire ports in desktop PCs supply 12V DC at up to 15W per port, but looking at my laptop's PSU, it's rated at 65W, so supplying an extra 15W to a Firewire peripheral simply isn't practical — and your laptop battery wouldn't hold out very long when powering such a device, either.
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Despite the above, many PC laptop owners point to the 6-pin buss-powered Firewire ports on Apple iBooks and Powerbooks as evidence that buss powering from a laptop can work. However, according to Apple, these Firewire ports only provide up to 7W of peak power when the computer system is on or the power adapter is connected.
There seems to be a lot of variation in both voltage and power ratings between buss-powered Firewire ports on both Macs and PCs, so you should be careful not to assume that you can plug any Firewire peripheral into any available port. As long as it requires 7W or less, you should be able to power it from a powered Mac or PC Firewire port, but above this you might suffer reliability problems or find that the peripheral won't boot properly. Even with the more typical 15W capacity of most PC Firewire ports, many musicians don't realise that you can still overload them.
This is a particular problem if you daisy-chain peripherals. Remember that although the Firewire specification theoretically allows up to 63 devices to be daisy-chained from one port, they are still subject to the maximum power drain of that port — and a single 3.5-inch external hard drive can typically consume 12W or more. In fact, so many devices are now being powered from Firewire ports that some PCI-to-Firewire adaptor cards, such as Miglia's Alchemy FW800 PCI, even provide optional connectors that you can plug into standard hard-drive power cables, so you can reduce the card's drain on the PCI buss. However, in general, if you intend to daisy-chain several Firewire peripherals and buss-power them, do check the total wattage required (there should be a power-consumption rating somewhere on their cases), or use the supplied AC adaptors to reduce power drain on your computer.
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Asio direct sound full duplex drivers for mac. Recently, a PC user reported that after upgrading from Cubase SX2 to SX3, his audio stopped every time he moved his mouse and started again immediately he stopped moving it. The probable cause turned out to be a mouse-pointer utility called Cursor XP, from Stardock (), that lets you create visually attractive mouse cursors.
Like Stardock's other products, such as Window Blinds and Window FX, Cursor XP looks wonderful, but as soon as it was switched off the audio problems disappeared. Once again, this reinforces my advice that although it's nice to have a glamorous-looking PC, a stripped-down version is nearly always much more suitable for music production. In the quest to run buss-powered peripherals, the next port of call for some PC laptop owners is often to consider buying a 6-pin PCMCIA-to-Firewire adaptor, but this route won't work either, as unfortunately the Cardbus specification doesn't allow such ports to be buss-powered.