Hi Bill, thanks for the replies. Yes, we are doing research on "ultra-low" latencies with accompanying realtime Linux and realtime software. With good PCI cards, our test synthesizer can run quite stable at 8 samples per period (and 2 periods per buffer) at 192KHz. Now for presentations we need to show that on a laptop... And, btw, our software synthesizer is running on realtime Java :)
Thanks, Florian On 2/22/2008 1:48 AM, Bill Unruh wrote: > On Fri, 22 Feb 2008, Florian wrote: > >> Hi, >> >> on our IBM/Lenovo T60 laptop, we want higher audio quality than >> the built-in HD-Audio, especially low latency - in the range of 1 >> millisecond or lower. >> >> Can anyone recommend a PCCard/Cardbus soundcard, or possibly a >> USB card supported by alsa and which you've been able to run with >> low latency? > > The usb audio maudio transit I have been quite pleased by, esp now that the > alsa has stabilised for this card. Latency it sseems to me is more a matter > of the buffer size that is used than anything else. At 1ms you can only > have at most 20 samples in the buffer. That runs the danger of underruns, > since something could distract the computer for that length of time. > > >> >> Thanks, >> Florian >> >> >> > -- Florian Bomers Bome Software ------------------------------------------------------- Music Software, Development Tools: http://www.bome.com Java Sound extensions, plugins: http://www.tritonus.org The Java Sound Resources: http://www.jsresources.org ------------------------------------------------------- Please quote this email in your reply. Thanks! ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
