Dell D630 sound crackles?

Hey,

I'm having problems with my D630 audio, the sound is coming out crackling and poppy, i have plugged it into external speakers to make sure its not dodgy speakers. I have re-installed the drivers and using SIGMATEL STAC 92XX C-Major HD Audio and still is crackling. Unsure where to go from here? ive been looking through the forum and a similar complaint was http://www.windowsbbs.com/windows-vista/78923-dell-m1710-sigmatel-hd-audio-crackle-popping.html

for this they solved it through IRQ sharing, the USB and the audio driver were sharing the same IRQ, so they disabled the USB one. I have no idea what this is or how to go about it, or if itll even work. Anyway any help would be much appreciated.

 

Its on all audio files and video files, i've downloaded the sigmatel codec from the dell website so hopefully there files aren't corrupted. i have tried installing it a few times with no luck.

A friend of mine has looked at my computer and thinks that its not the audio codec but another driver causing it to function wrong, though this is speculation.

 

Un-installed it and rebooted, windows doesn't automatically reinstall the driver, tried playing music first to see if it would use another driver but no luck. Reinstalled driver and nothing different, still crackling and popping.

 

Have you ever had "non-cracking/popping" sound? Was it OK at any stage?

 

no, it has never not crackled and popped that i have noticed.

 

Unfortunately the Vista resource broker lamely decides to share just a few
IRQs between the most resource intensive devices. Although all the devices
are CAPABLE of sharing IRQs, this does not mean that sharing is DESIRABLE.

For example, the sound chip shares an IRQ with the main hard disk. Given
that Vista has reduced the audio buffering available to better support
realtime music, making it share an IRQ with a resource-intensive device like
a disk or network card leads to appaling sound breakup - not very helpful.

Similarly, the USB bus and 1394 bus have Isochronous modes which can/will
fail if forced to share IRQs with inappropriate resources.
hawk22

 

ok, i understand what your saying. I'm running XP, will it be doing the same thing? If so how do i stop or reassign the IRQ to stop my audio coming through crackly?

 

I wondered if the drivers may have been changed at some stage and you may want to try, say, rolling them back. I could not see any clear cut solution to the problem. Some people solved it, but in different ways. I can't offer much else than in that original thread.

Matt