Where is the audio in TV / Video Cards???

Hello boyz!
I am developing a little framework over jmf to make life easier to java developers who want to use media in their apps.
Now i am developing a Capturer class that is configured with an audio and video device and their capture formats.
To a webcam and the soundcard works fine. I get a datasource from each device, if i have both, i make a merged datasource...
But how works a videocard or tvcard? In the config of my class the video_device and audio_device will be the same, but later, how works the audio? Will i get a only datasource from the device with 2 streams? or how?
Thanks in advance!
jcpa1

As for TV capture sound, should be same principle as your webcam or soundcard.In my machine i have a webcam (video_device), a soundcard(audio_device) and a microphone in the webcam.
For the audio, capturemanager only shows: javasound and directsound (i suppose because i am in windows) and both are only for the soundcard, i cant select the microphone of the webcam :-(
So i would like hear the experience of a user who has a tv or video card.
How much easier can jmf get? if you know java, your sure be easily able to pick up jmf.To domine jmf you need to know about media formats, events, concurrency, and networking (if you want to send/receive) and later fight against the poor documentation and bugs of jmf.
So, i suppose if you only need to incorpore simple media tasks in your app you wont to study all previous topics.
Greetings.

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