On Tue, 2010-06-29 at 23:42 -0700, Niels Mayer wrote: > I don't know anything about the terratec as I bought my first (used) > card manufactured by them recently: they're almost mercedes-like in > their overengineering of things (super high quality circuit board and > engineering) and the documentation is always sparse... perhaps there's > a hidden jumper that sets the mode of the header socket?? Just like my > DMX6Fire has a "digital xtension" socket into which you can plugin a > waldorf microwave synth module and i'd love to find out the i2s data > input and output pinouts so as to replace the analog frontend w/ a few > of these http://www.twistedpearaudio.com/digital/wm8804.aspx and gain > extra digital ins/outs in place of not-so-great-sounding analog > front-end (alas using essentially the same components as on the ewx > 24/96 on the dmx6fire 24/96, essentially terratec's version of > m-audio's 24/96 and Delta-66). But the built-in, software controlled > switch (envy24control) between TTL-spdif, optical-spdif and coax-spdif > all but makes up for the analog front end... as do the two full-speed > midi ports, one driving my db50xg clone. > > http://www.soundonsound.com/sos/apr01/articles/soundcard.asp > ## On the circuit board itself is a 16-pin header socket, which connects to a > ## supplied cable terminating in a dummy backplate and 15-way D-type > connector. > ## Into this you can either plug a standard MIDI soundcard adaptor > cable, or a proprietary > ## Terratec phono preamp to help transfer vinyl to CD, both of which > are optional extras. > > > ASUS M2A-VM HDMI... Mounting an additional sound card won't cause an issue > > because of an > > additional interrupt? > > It shouldn't, or at least it hasn't for me using similar hardware > (M2N-68VM for example). > > > There will be no issues, e.g. for JACK, if I would use the Terratec EWX > > 24/96 for audio and another sound card for MIDI? > > Just be sure you like the sound of the terratec's weak-sounding bass > assuming it sounds similar to the dmx6fire's using the same parts and > probably design (which could imho easily be modded back to decency, > see sound files for comparison at end of > .http://linuxaudio.org/mailarchive/lau/2010/6/28/170833 )
I don't like the sound of the Terratec EWX 24/96, but it was for free ;). > The other card's MIDI devices should just appear as a separate ALSA > MIDI device. ALSA midi will function independent of whether jack is > running or not, and independent of which soundcard is used for > jack-audio. If you need to have jack-audio work across two cards, > that's another matter entirely: No no :) what ever sound card I should get, I can live with using one duplex stereo. I would be much more comfortable with 16 audio IOs, but that's not important regarding to the MIDI jitter issue. Thank you. Ok, IIUC jackd hw:blabla is for audio, but for ALSA MIDI there would appear all devices?! > they'd best be the same kind of card, > and have their SPDIF used-up for syncing between them. And I'm > ignoring jack-midi entirely , as I don't use it that much; qjackctl's > patchbay integration of ALSA midi devices makes jack midi a bit > superfluous for my uses. > > Niels > http://nielsmayer.com You say I can use my ElCheapo EWX 24/96 with another ElCheapo for audio, by any other vendor, just by connecting S/PDIF to sync the channels? I read about this and I also read about some solutions using my 'roof gutter soldering iron'? I had a champagne breakfast, hence I didn't read the links, I just was curious for your reply. Again, thanx, I'll read the links in the evening. FWIW, there aren't jumpers on the Terratec and I guess the used MPU by the two provided by the EnvyChip is broken. For my old mobo's gameport I soldered an adapter without TTLs and opto-couplers. This cable wasn't fine for the Terratec, hence I took my BreadBoard and checked several circuits, without TTLs, but opto-couplers. While I was a professional using the soldering iron, today I should get glasses. I damaged the jack, because I wasn't able to see what I did solder, so I might be the one who killed the Envy's MPU ;). But maybe they do use some exotic pin allocation. Referring to you, it's more likely that the MPU was broken or that I did break it, because my arms were not long enough for my bad eyes. Ok, I'll get another ElCheapo just for MIDI and solder a usual adapter with or without opto-couplers, but by using a magnifier. The USB MIDI still is usable to dump sounds and it was < 20,-€ at Thomann. To be continued. Ralf _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
