music skipping when working with large selections in photoshop..

[dawks]

AMD Athon XP Barton 2500+ @ 2700+
512meg Kingston PC400 DDR at 360Mhz
ATI Radeon 7500 64meg DDR (Catalyst 4.5 - 4.6 now)
ASUS nForce 2 Deluxe with latest nVidia Forceware Drivers (Version: 4.24)
Using onboard sound (nVidia Soundstorm)

Windows XP SP1.
Windows Media Player 9 or
Winamp 5.03 or
iTunes 4.5
Adobe Photoshop CS (8.0)

While holding down the spacebar, and scrolling around large images (only happens with a large selection - marching ants), my music skips. While adjusting a marquee selection, my music skips. Plenty of free ram, and CPU (photoshop is using about 50-60% CPU when scrolling and such though)..

This did not happen when I was doing the SAME thing on a PII 400.

Tried playing with IRQ's a bit but not exactly sure which would be a good setting. The video card likes IRQ 5 or 7.

Any idea on a fix?

 

[ViperV990]

lower photoshop's process priority?

 

[dawks]

Originally posted by: ViperV990
lower photoshop's process priority?

Tried that. Tried putting it at the lowest, and putting Winamp or WMP or iTunes at High.

 

[Megatomic]

Well DaZ, you have just demonstrated why video pros who manipulate large digital images have large quantities of memory in their systems. I say upgrade to 1GB of RAM.

But I can't explain why you didn't have the same problem on your PII system.

 

[dawks]

Originally posted by: Megatomic
Well DaZ, you have just demonstrated why video pros who manipulate large digital images have large quantities of memory in their systems. I say upgrade to 1GB of RAM.

But I can't explain why you didn't have the same problem on your PII system.

I've edited the images of the same size and larger on my old system that had only 256megs ram. Also there is plenty of free ram while I am doing this.. 160 or more.

 

[Bar81]

Did you install the nvidia IDE drivers?

 

[DJMiX]

also if your using a via chipset boaRD install their via drivers also...

looks like a issue with ide drivers ...

 

[Megatomic]

Well, I use an NF2 Ultra 400 board with the SW IDE drivers and I also manipulate large images in PS7. Fortunately for me I don't have that problem. But I do have 1GB of RAM.

Sorry I don't know what the issue is there DaZ. If you do find a solution post it up.

 

[Zap]

Find a copy of Winamp prior to version 3 and try it out.

 

[dawks]

As I've said, this happens with Winamp, Windows Media Player and iTunes.

I've tried playing with my IDE configuration, adjusting IRQ's... I am using the latest nVidia chipset drivers available. Forceware Drivers (Version: 4.24).

And the problem still persists. All I can conclude its there must be a bug in the drivers somewhere?

I noticed there is an update for AMD Processors on Windows Update, should I install that?

 

[birddog]

I believe it has to do with Windows media player no longer using the direct audio cable. The audio signals have to go through the PCI bus rather than straight from the CD-ROM to the sound card. In Win98se, I have the same problems with Media player 7 or 9. If I use the CD player that Win98se has, it does not have that problem. The CD player requires the cable from the CD-ROM to the sound card, while Win Media player does not. Win XP no longer has the CD player, it depends on Windows Media Player.

 

[vasdrakken]

ok first thing do NOT use Nvidia's IDE drivers, second Photoshop CS has things running in the background you will never find, you shouldn't have upgraded from 7. If you don't belive me try scanning a dallor bill and find out what your proc is wasting cycles on. Second what do you define as a large image? Photoshop has more problems with more layers than either physical size or resoltion. audio cable isn't going to help as the CPU is getting hit not the PCI bus, you could stream 128Hz DVD audio before saturating the PCI bus, unless a 7500 is a PCI video card... if it is I am not touching that one. One an image is loaded in photoshop it is sitting in memory, not accessing the hardrive except for the swap file, which you should already have setup the min and max to be the same size so it always uses the same space. A gig of ramm only helps when your going through more 475MB of ramm, as the OS needs about 50MB(25MB if using win2k, win98) to play with.

 

[Peter]

This is not about PCI bus saturation at all - it's about the audio unit not getting access to the RAM in time to play seamlessly. This often happens when large amounts of data are shifted about elsewhere, unless the chipset has special tricks up its sleeve to ensure the audio stream isn't starved. It seems yours doesn't.

No, interrupt shuffling won't help.

Using legacy analog CD playback does help though, since this way, the audio from the CD drive never enters the system in digital form. Instead, it goes round the outside straight into the audio codec's analog output circuitry and mixer.

Relief for the digital mode might come from lowered latency settings on AGP and PCI, updated drivers, chipset tweaks, BIOS updates, that kind of thing.