Attn: Vista Performance/Dropouts

I found that going to control panel->system->advanced system properties->advanced->performace settings->advanced and
then clicking adjust for best performece (background services)
works best uncheck (programs)

Below Problem SOLVED! I have 3 network connections setup - LAN, Bluetooth and Wireless. I don't use all of them at the same time, but keep them enabled. However, because my Line6 devices are USB, the network connections seem to cause glitches - not all the time, but often enough. When I disable all the network connections the glitches go away.

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Michael - First of all - Thank you for your ASIO4all. It has improved my recording capabilities greatly when using the Line6 USB devices.

I still get these occasional snaps and crackles, and dropouts when using the Line6 devices hooked up through USB (CPU usage is only 25%) Seems to happen to a greater extent while recording. I've tried everything so far - Power management is now Performance, turned off AERO, Background services have priority, tried turning off all special vista video, etc. I've got buffers set at 512 which is maximum allowable latency for me. None of those changes seems to have any effect.

The one thing I am curious about is checking the PCI Latency Settings to see if the Video card is stealing too many clock cycles from the USB port. I downloaded the PCI Latency Tool 3.0 but I can't see the Video card. All the USB's Latencies are showing 0 - not sure what this means. In device manager, the NVIDIA settings won't let me get into any advanced settings so I can't see what it is doing, and I can't turn of Hardware Acceleration if it is on.

Anybody have any ideas? My old VIAO Laptop running XP worked perfectly with the same devices. Not sure if it is Vista or the new (much faster) VIAO.

Thank you - Geno

My 2 cents:

I haven't had much luck with Vista using ASIO4ALL, WDM or WaveRT drivers. I'm using an Inspiron 6400 laptop (Core Duo T2400 CPU, 1.5Gb RAM) which features the ubiquitous Sigmatel STAC 9200 audio chip.

I get the "best" latency using the WDM driver (WaveRT under Sonar always crackles - prob. bad drivers), but can't get below 26ms, which is awful.

The twist is that XP is even worse - ASIO4ALL provides the best latency under XP (I'm using Live 7) but I get audio glitches constantly at even 30ms, which is pretty brutal.

I haven't had much luck under Sonar either, so it's not Live that causing the problem.

Just read the tip regarding power management though - that's the only thing I haven't tried yet under Vista. Since I'm having no luck under XP (which is surprising), I'm going to have to give Vista another go.

14ms is quite a lot dude.

I can confirm Vista runs slower, you cannot achieve the same lower latencies as in Xp...so...bottom line...STICK WITH XP...at least until SP2

Also,

It's highly doubtful that service packs will change anything latency related (delayed procedure calls, etc) under Vista. Service packs update kernels, provide desktop (average user) performance improvements, improve or introduce support for new technologies, etc. Poor real time data streaming latency is a reality of Vista's core architecture and is unlikely to change no matter what iteration of service pack is installed.

Cheers,
_sP_

they may actually be working on the audio system for the service pack a lot of people have had problems! hopefully they do something about 'memory management' also ;D

thanks for the process-lasso, ill check it out.