On Saturday 13 February 2010 02:38:24 pm Leigh L. Klotz, Jr WA5ZNU wrote: > Dave's point about sample rate conversion is a set of "favors" being > done for users by the API or mid-tier software, not the USB Audio driver > itself, which is essentially the same across all USB cards regardless of > what chipset is used or how much it cost. Choosing OSS or PortAudio > lets you decide which mid-tier software is doing you which favors. Most > of the favors there are done for music recording, and the performance > and operations decisions aren't necessarily optimal for ham use.
My question Leigh is whether or not a USB sound device can handle multiple sample rates natively just as a PCI card can that can support these sample rates natively? I'm assuming so based on what you wrote. I guess the question then is how to identify good USB hardware for ham use? Another thread has some discussion about the mixer elements of these USB sound devices, or in this case, the lack of. Wondering how that's handled for card inputs and outputs? Also seemed to not be supported in oss-alsa emulation, i.e. there was no /dev/dsp1 mixer created for the card. Though I don't know if the USB device was aliased correctly or not. Rick Kunath, k9ao _______________________________________________ fldigi-alpha mailing list [email protected] https://lists.berlios.de/mailman/listinfo/fldigi-alpha
