crackles with wave source

flashvalley · Post by **flashvalley** » Mon Jul 25, 2005 2:47 pm

I was recording some samples from vinyl. The recordings had some clicks in them, so at first I thought it was the vinyl itself. But after closer examination I found it wasn't. For some reason when I use the wave source my recordings have crackles in them. I have tried the asio source in my sequencer and that didn't give any problem.. But for recording samples I find it easier using a soundeditor and that uses the wave source/destination.. I'm not sure why I have this problem now because It all used to work just fine.. didn't change anything lately but my pulsar 2 did freak out a few weeks ago..
there is a luna 2496 connected to my pulsar 2 board and all the lights went flashing randomly and the samplerate and sync leds switched randomly in the settings panel..
i removed the board from my mobo and reinserted and it does seem to work fine now..

any ideas what could be the problem?

thanks
valentijn

at0m · Post by **at0m** » Mon Jul 25, 2005 3:06 pm

If the problem's gone, there's nothing to worry about. If it returns, maybe there's too much static on some of your lines? Did you ground the turntable properly?

flashvalley · Post by **flashvalley** » Tue Jul 26, 2005 12:30 am

well, the random flashing and switching of the samplerate is gone but the problem i have now are the clicks and crackles I get when I record using the wave source. I don't think it's the turntable because I have tested it with my synth and the problem still occurs..

Stige · Post by **Stige** » Tue Jul 26, 2005 5:24 am

Have you tried to reset your startup project or that the one you are using when the crackling occurs?
What happens if you make a totally new project?:
- delete all existing modules
- add only those you need
- save it
- restart scope and load the new project

still crackling?

flashvalley · Post by **flashvalley** » Thu Jul 28, 2005 3:48 am

i've changed some things in my bios settings and it seems to work fine now..
i've disabled hyperthreading.. i'm not sure if that was the problem

but it's working now..

valis · Post by **valis** » Thu Jul 28, 2005 11:00 am

Clicks & crackles in wav source/dest? Open your Sounds & Audio devices control panel (in control panels), go to the 'hardware' tab and select (one of) the scope card(s), choose 'properties' (or double click).

When the properties panel opens go to the 'settings' tab and adjust the 'Output preload' slider under "Wave Setup" to be higher. This should resolve any crackles. (Once again I am not sure how this will affect users who rely on WDM kernel mode wav--ie SONAR users who don't use ASIO).

at0m · Post by **at0m** » Thu Jul 28, 2005 11:49 am

Don't use Directx either, just the plain wave drivers are best: directx does an emulation, just like with the MIDI drivers.

Anyone bothered changing to No Acceleration in c:windowssystem32dxdiag.exe > Sound recently? If I remember well, this should improve some things for games, mediaplayers and stuff that talks to DirectX and has no other output options. Anyone remember what exactly?