On Mon, 19 May 2003 12:01:39 +0200 Michel Bardiaux <mbardiaux@xxxxxxxxxxx> wrote: > I might have to do the same, but the sheer amount of doc referred to on > the ALSA home page has dissuaded me so far. Can anyone tell me what is > the *minimal* software to install, and the minimal documentation set to > read, in order to convert a *working* OSS sound capture app to ALSA? I agree. The best document that I found on there was to go to the SoundCard matrix (click SoundCards on the main page then SOundCard Matrix) and then click on the Details link for your specific card. At least for mine (intel8x0), there was a nice summarized document with a quickstart guide. Also, I am using Debian and it too had a nice quickstart guide. As far as your sound capture app goes, you shouldn't need to change anything once you get the OSS emulation working in ALSA (although in time, you may want to configure it to use ALSA directly). > Exactly similar, no, if only cuz we used ffmpeg first, a homegrown app > later, rather than mencoder. But there was a lot of hair tearing and > teeth gnawing here until we understood that the mixer *on the sound > card* also played its role. You can adjust it with xmixer (part of the > mctools-lite package), then check your settings with 'record' (part of > the xawtv package). Thanks for the hint. With record, I can clearly see my problem. The output of my TV Card (ATI TV Wonder VE) is way too low (the left&right peeking at around 9000). Of course, I can adjust my igain too increase that but it seems to be increasing all the noise too. What I am wondering is, is there a way to increase the volume right at the source (the TV Card) instead of using the Input gain of my sound card? > I also got the feeling (but no hard data) that with *some* sound cards, > the LINE input can be more noisy than MIKE. > > How do you set the sound sampling frequency? I tried the Mic input and it is definitely better, especially with the Mic Boost. BUT I still am getting the high pitch 'ringing' sound in the background. I am starting to think this just might be noise generated by the computer itself such as the fans inside the box or something else. It isn't like this is a high quality card as far as sound goes so I am almost guessing I might just be stuck with it. Jason
