Joined: 16 May 2007
|Posted: Wed May 16, 2007 12:03 pm Post subject: question regarding audio muting on ati tv wonder pro
|I have been using dscaler for a while, and recently I have tried to use it with an ati tv wonder pro card with some issues. I was hoping someone may know how to fix this or may know if it is unfixable.
Anyway, here is what I am trying to do. I want to use the onboard tuner on the card to watch tv in dscaler. I also want to use the s-video and audio inputs on the break out box for gaming.
Here are the steps I have tried to get this to work:
1. I installed the card with the ATi drivers. This works fine using the VirtualDub capture avi module as well as windows movie maker. In fact, it works quite well.
2. I installed Dscaler 22.214.171.124 and loaded it up. It detects the card properly and asks me if I want to use the Ati Drivers or the DScaler Drivers. I chose to use the Ati Drivers. After doing this, DScaler works great with the card. I can watch TV with audio, and play my XBOX 360 via the S-Video input also with perfect audio. I have the audio out on the external port of the TV wonder hooked up to my line in on my sound card via a jumper cable.
3. All seemed well so I closed DScaler and walked away for a while. I then wanted to capture some game footage from the xbox360 in VirtualDub. I fired up VirtualDub and opened the capture avi module. Upon doing this I received an error, that the device was in use. I have read on a number of forums that this is an issue if you use the DScaler driver, but I specifically told DScaler NOT to use the DScaler driver. I CAN get VirtualDub to capture video and audio again by reinstalling the Ati Driver and restarting the computer. But, if I open DScaler, I have to repeat the procedure again.
4. I then opened up DScaler again, and found that there was no audio available from the TV or XBOX 360. It had worked PERFECTLY before. Now there was nothing. I tried to turn the mute on and off. In doing this i found something interesting. I could hear the TV/XBOX for a brief second each time I unmuted the sound (pressing M repeatedly). If I press "m" fast enough, I could almost make out what the people were saying on the TV. As I was pressing "m" I had my sound mixer open and noticed it was muting and unmuting the sound card. This is fine and I expected this behavior.
What I think is going on and what I would like help with is the fact that it seems that DScaler is loading its driver even though I told it not to, and this is not allowing other programs to use the card anymore. I think this is documented, but I dont want to use the DScaler driver, and specifically told it not to. If it did not use the driver, I believe the sound problem would be a non issue.
However, since I want to use DScaler, and it IS loading the driver, I am wondering if there is a way that I can tell it NOT to mute the TV card's output. It is clear that DScaler can manipulate the System mixer properly. I checked this by plugging the audio output of the XBOX 360 directly into the Line In on my audio card. This test worked fine and showed that I have DScaler working properly. However my repeatedly pressing the "m" button shows that DScaler CAN get sound from the board, its just being muted somehow. How can I change this setting. I do NOT want the program to mute the sound on the card. Essentially, I want it to be always on, but will be muted by muting the line in on the sound card. This is how the ATi Driver works, and it seems that this is NOT how the DScaler driver works.
If anyone knows how to fix this please let me know. I have spent several days on it, and it seems my only solution is to not use DScaler and use VirtualDub for watching TV on this card, which is not ideally what I want to do.