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Windows 7: problem with sound cracking in USB DAC when watching video files


05 Sep 2010   #1

windows 7 professional 64 bits
 
 
problem with sound cracking in USB DAC when watching video files

Hi all,

I have a problem with my USB DAC in my media center PC, and I would be delighted to receive your help

When I play music everything works perfectly. However, when I play some video files in WMC the audio cracks continously, it becomes unacceptable and I have to quickly stop the video for not damaging the speakers. It also happens when resizing the video screen or switching to full screen mode.

The DAC is a MUSILAND MD10, which uses the generic USB audio DAC driver from Microsoft.

In order to check if the problems were linked to this USB MUSILAND DAC setup, I have also installed another USB soundcard EMU 0404, which uses its own driver. I can confirm no cracks occur when using the EMU.
So, this is nothing related to windows process running in parallel or system load.

Could it be the windows 7 USB audio DAC driver? I tried to update if from the dev manager but it has the latest. Any thoughts?

Thanks a lot!!!

My System SpecsSystem Spec
.

05 Sep 2010   #2

windows 7 professional 64 bits
 
 

Hi again,

I have installed the ASIO4ALL driver in the PC. In order to play the files in WMC and WMP I have also installed the ASIO plugin for WMP. However, when I try to play an audio file I get the following error:
"ASIOWmpPlg: Failed to create ASIO interface, error code 80004002,"

I seem to have 2 problems now: how to use ASIO4ALL in WMP in Windows 7 PC, and the annoying cracking sound...

cheers
My System SpecsSystem Spec
06 Sep 2010   #3

windows 7 professional 64 bits
 
 

hi all,

Just in case someone can understand what is going on in my PC with the audio, I will add up more findings of the problem.

I have downloaded VLC media player, and every single avi I played had perfect audio using my MUSILAND DAC player.

So, the problem is down to the use of the MUSILAND DAC player in WMP/WMC.
As mentioned in previous posts, if an EMU USB card is used in WMP/WMC, everything OK. Also, installing ASIO4ALL in WMC throws an error.

Any thoughts?

Cheers
My System SpecsSystem Spec
.


07 Sep 2010   #4

windows 7 professional 64 bits
 
 

More findings...

I have grabbed the USB DAC, and I have connected it to a laptop with same WIN 7 OS version as the media center PC

First, I can use the ASIO driver in WMP.
Second, the audio does not complain with the same video files I played in the media center PC.



Also, I have tested using WMP/WMC in the media center PC with the onboard sound card. It also played without problems

In summary, the problem is when I use WMC /WMP in the media center PC with that USB DAC....

I am lost............Help pleaseeeeeeeeeee
My System SpecsSystem Spec
08 Sep 2010   #5

windows 7 professional 64 bits
 
 

It is me again...

I reinstalled WMP using the windows features control panel, and I still have the same problem...

going mad...
My System SpecsSystem Spec
12 Sep 2010   #6

windows 7 professional 64 bits
 
 

Hi, it is me again!!! I know, I am very stubborn

I am stilll trying to make some sense of my PC audio problem...

I have reinstalled windows, and now I am even more confused... Now, if I play an aVI file in WMP using the USB DAC for playing the audio, everything is fine, which made me thiniking the problem was gone...
However, if I play the same file with WMC I have the same crakling probrem with the audio as I had before restarting...

How can that be possible? I thought that WMC was using WMP audio and video API and codecs....

I am not being too lucky... Does anybody have an idea of what is going on?

Thanks!!!
My System SpecsSystem Spec
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 problem with sound cracking in USB DAC when watching video files




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