On Thu, Jun 12, 2008 at 4:30 PM, Roman Haefeli <[EMAIL PROTECTED]> wrote: > actually, my problem is not jackd related at all. i cannot use a > samplerate other than 48k with any application i tried, not only with > jackd. isn't alsa supposed to provide resampling, if necessary? > > i forgot to mention the hardware: > Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio > Controller (rev 03) > > roman >
Roman, Assuming I'm understanding correctly, in this case jack could and should only be run at 48K. Jack is synchronized to the hardware, not to any specific sound file or application data rate, so that it can always receive and provide audio. Jack's first job is to make the hardware happy and that's how it does it. Alsa does provide resampling. I'm not sure how to turn it on but I suspect it's done through dmix or some other plugin structure. The application can then source 44.1K samples/second and the plugin does the resampling to 48K samples/second keeping the hardware happy. Hope this helps, Mark ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
