On 6 September 2012 at 21:52, "Len Ovens" <len@xxxxxxxxxxxxx> wrote: > > On Thu, September 6, 2012 8:57 pm, Ralf Mardorf wrote: > > On Thu, 2012-09-06 at 20:35 -0700, Len Ovens wrote: > >> I just had to look... and sure enough they do exist: > >> http://ca.startech.com/Cards-Adapters/Slot-Extension/PCI-Express-to-PCI-Adapter-Card~PEX1PCI1 Also, http://www.newegg.com/Product/Product.aspx?Item=N82E16815158165 which has some customer reviews. > > Are such adapters ok for audio IO cards? Latency? Audio jitter? MIDI > > jitter? Etc.? > > Could be better. The bridge will be the same as what the MB supplies for > it's PCI slots. The extra power plug means cleaner power and enough drive > for the analog audio circuitry. Latency will be the same. Audio jitter is > more effected by whats in the card itself. The second link I gave > (http://www.jrigg.co.uk/elec/interface.html) actually goes into some > detail about that. MIDI is slow at 3khz for words and half that for a key > down event. I wish I could use my boca board for that (from BBS days) with > 16 uarts. 16 outputs one for each synth. But I think it is actually an isa > board. If I ever use it again it will be with netboot dx66 or something > and just enough OS to get it to network. Anyway, jitter is more in the > software and drivers and how they handle (or don't) the midi signal. -- Kevin _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
