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In Reply to: RE: Does eSATA for an external HDD reduce damand on USB? posted by mr.bear on June 27, 2011 at 11:40:39
You just need to know how to do "USB Channel Mapping".
In Windows, you go to the device manager under USB controllers. To do this, you will need to view Devices by Type.
Then, once you know which USB ports go to which controller host, you can view Resources by Connection.
Pick a unique host controller with a unique interrupt request for your audio drive AND for your USB audio device.
If you need a USB expansion card (PCE or PCI) then get one. If you get massive dropouts or glitches identify the expansion card's chipset. Some say one is better than the other but sometimes it just depends on the hardware you are using (and it's drivers).
Usually with USB where there is a will, there is a way. The USB troubleshooting method is not super complex but few seem to know even the most basic of steps to avoid resource conflicts and spits and sputters. The right USB expansion card can often save a LOT of time and effort and it gets you an additional interrupt because it's not treated like a USB host controller but really an individual PCI/E card. This can be a big advantage if you're out of IRQs or simply cannot remap them as you need to. There are also programs out there than can re-map IRQs but this is for advanced users - use at your own risk and back up your computer first or at least set a restore point.
Follow Ups:
You really hit it on the head. If the inmates here wish to pursue PC driven sound, they must have knowledge of operating system functions. This knowledge is imperative if one wishes to continue to tweak their setup. I am an IT service specialist, I look to you guys to help me tweak my system.
And thanks to you all who help. In the future, your entire home will operate from a computer console, the dishwasher, washing machine,oven,everything! Cheers! My PC just got me a drink. Alan
Vista Ultimate 64 bit/e5300 Intel 45nm cpu/ASRock G41M-LE/Asus Xonar DS R 7.1/YamahaRX-V465 HT receiver/ Infinity RS1001 & Cambridge SoundWorks speakers/Yamaha YST-SW216 subwolf
why does anyone who has spent $$$$$$$$$$$$$$$$$$$$$$$ need to have to do this???????????????? The thing is simply not 'universal'
'Usually with USB where there is a will, there is a way. The USB troubleshooting method is not super complex but few seem to know even the most basic of steps to avoid resource conflicts and spits and sputters.'
Thanks. I'll check this at the time I set up my new computer. Is this link of any use? I might could use the assistance it offers...
You don't need any special software.
Just use the device manager
A couple of screenshots in the link below.
The Well Tempered Computer
I was having a difficult time following the description in Presto's post, above. It appears that the steps you show (in Win7) accomplish the USB porting and IRQ adjustments, at least the ones that most users are capable of. (I lack the confidence to go messing around in the BIOS, generally speaking.)
$29 each year???????????????????????????It looks like a driver update service. You can go to your MB manufacturer and do this youself.
Unlikely to solve real usb problems.
Edits: 06/28/11
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