On Thu, Jan 9, 2014 at 8:37 PM, Robert M. Riches Jr. <rm.riches@xxxxxxxxxxxxxx> wrote: >> Date: Thu, 9 Jan 2014 08:09:17 -0500 >> From: Nathan Jackson <nate.ds.jackson@xxxxxxxxx> >> To: Clemens Ladisch <cladisch@xxxxxxxxxxxxxx> >> Cc: alsa-user@xxxxxxxxxxxxxxxxxxxxx >> >> >> Clemens Ladisch wrote: >> > This device cannot change any of its sample format parameters. So >> > either it sends wrong data, or some data gets dropped by the computer. >> > The Raspberry Pi has a horrible USB implementation, and not very much >> > bandwidth, so I'd guess it's the latter. >> >> See the problem is that it works with an older version of Raspbian, so >> I know it did work at one time. >> >> > Please check if recording with this device works on a 'real' PC. >> >> It works on both the Pi in an old version of the software and also my >> PC just fine. >> >> I'd like to debug to try and fix the problem, but I'm not sure where >> to start on this. Whether the problem is a bug or a configuration >> issue on my end. >> >> -Nathan > > fwiw: The Pi's USB implementation may well be horrible relative > to more costly machines, but it should have enough bandwidth to > handle most audio jobs. As I type this, I'm watching HD video > that was captured from a USB DTV tuner via a Raspberry Pi's USB > port. (During video recording, the stream was sent back out the > network port while it was coming in via USB.) If the Raspberry > Pi can handle HD video, it should be able to handle the vast > majority of audio tasks. > > HTH > > Robert Riches > rm.riches@xxxxxxxxxxxxxx Sort of a bump here. But I still don't understand how I can get correct audio with a previous version of Raspbian (with older ALSA code, be it kernel or user space code) and then get incorrect audio with a newer version. The hardware I'm using is the exact same in both test cases. Either something is wrong in my configuration or there is a new bug. That's what I'm trying to figure out. -Nathan ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
