question on using gnx4 as input and output
i got one of those \"digital amp\" demos on a guitar world cd ... its called \"NI AC-Box Combo\" anyways, I use my GNX4 as the input to my computer then set the output (on the program) as my sound card ... so the signal is going thru the gnx4 and coming out processed by the prog out my comp's speakers ... this works fine EXCEPT, the signal coming out is delayed (lagged) just a little bit enough to make it hard to play along with .... i realize this must be from the program processing etc etc .... whatever .... SO .... i thought i could solve the \"lagging\" problem and select the output (on the prog yep) as my GNX4 (i tried 1/2 AND 3/4) so the programs processed signal would come out my amp and there wouls be no lagging ... so now when i have the input and output set to the gnx the program freezes and for awhile then the computer just shuts down so that idea didnt work out for the best .... so it is not possible for the GNX to be used as an input AND output device at the SAME time then? also, how could i solve that lagging issue? do i need a good sound card or do i need a sound card that i can plug a 1/4\" straight into? (which would probably be a good sound card to me since im using the integrated sound card on my compaq) ... i messed around with the latency settings and found they dont really solve anything except add or take away a scrachy like sound ... and what does \"latency\" mean anyways? any suggestions or do i just deal with it? pm me if there is any questions thanks!!! 
Comments
latency is the time taken for a signal to go in the soundcard, be recorded/processed then come back out again. that is your \"lag\"
if your seriously into recording buy a decent sound card. I bought a low latency M-Audio Delta 66 - 4x 1/4 inch ins and outs. Also you can route the signal directly back out the outs as well as going to the computer so you have no (0 ms) latency. Also you have way better sound quality etc etc. THis allows you an additional 4 channels as well, and a sturdy set of plugs that reside in a breakout box (outside of the computer) that is connected via a serial cable to the computer so you dont have to mess about behind you computer. Trust me, a pro sound card is worth it.
The problem with integrated sound cards is that they are half-duplex, meaning the can only send a signal or receive signal, whereas semi-pro or pro sound cards are full duplex, allowing them to send as well as receive.
With the computer freezing etc i'm not sure but you might of set up a feedback loop. Setup you gnx so that only the guitar goes out the 1/2, because if its stereo all, whats coming in the 3/4 goes out the 1/2 etc , feedback.
I hope that helps a little.
I have not experienced any probs with using the gnx4 as my main audiocard. Did you remove/disable the onboard card?
hootman : so now i have to setup the GNX to mono all and that shoudl just send the signal out 1/2 and not 3/4? ... if thats the case then i shoudl be able to set up this program as \"Input - GNX 1/2 In/Out\" and then \"Output - GNX 3/4 In Only\" ... am i wrong? btw you guys have helped ALOT and im looking into a decent priced sound card as i type this .... im looking at www.emu.com ... i was checking out an ad in guitar world and like what i hear so ill let you guys know what i think or what iom gonna decide to go with ... i dont need anything huge just something that has zero latency, a few quarter inch in and outs and is compatible with PTP (which im sure ALL pro sound cards are )
try the other output schemes and routing ways coz i cant tell you from memory what each of them do.
the output schemes dont have an effect like this on the USB , all it can change is mono or stereo settings for the USB, like what goes to what tracks ... nothing to do about the \"one way at a time\" direction of the usb line
according to digitech you should be able to, as it says record 4 channels of audio and moniter 2 channels...
I guess the problem is you have it connected to your amp, so you can't really use it as a general soundcard right? Just to clear all the misinformation, yes you can have 4 streams up to the computer from USB and 2 down to the GNX4.
The problem is you don't want any latency if you apply effects on Pro-Tracks. That's impossible. You'll always get some. However I'm able to get with the ASIO4ALL drivers, 4ms of latency in SONAR 5. Here's what you need to do to listen only to the processed sound (processed by plugins on Pro-Tracks/Sonar)
1. Go to the 8-Track recorder or Audio Setup on X-Edit and locate USB PLAY MIX. Set it so that the screen reads GNX MIX 0. That basically disables the output from the GNX4 itself.
2. In Pro-Tracks/Sonar turn on Input monitoring so that'll it echoes the processed sound back to the GNX4.
Walla... Processed sound with low latency (depends on system) using the ASIO4ALL drivers and no new card...
- very true - check out the thread - \"Optimising you PC for recording\" because there may be too many processes going that ovreload your CPU and RAM
You can get it here:
http://www.asio4all.com/
You have to change Pro-Tracks/Sonar into ASIO driver mode.
Then open the ASIO Panel from within Pro-Tracks or Sonar. Disable everything but DigiTech USB 1-2 (make sure it's not selected as your windows audio device or it won't work).
Set the latency compensation sliders to 0.
Uncheck Use Hardware buffer.
Uncheck Always resample 44.1Khz<->48Khz
Uncheck Force WDM driver to 16-bit
The latency will be determined by the ASIO Buffer size. Start with 128 samples and check if you have stable playback/recording (not stuttering, not breakup in playback, no stopping of audio engine). Increase to 256 and retry. Increase again until stable.
nm i found it ... ill mess with it and let ya know how it works out
ok ... after i set it up all my GNX drivers are gone so that means i have no input ... on all the tracks it has the input set to my sound card ... but im not plugged into my sound card , im plugged into the GNX going thru usb ... so how does it work now? im so confused!
lol nm agiain i was paying attention to what you said
i got it to work and it works perfect!
thank U so much!
USB 1-2 SRC - StereoFX and USB 3-4 SRC - Dry mic
when i hit record the tracks pop up but my guitar with FX comes thru on both tracks or all tracks im recording on ...
i enabled 3/4 in ASIO, and now im getting no sound to PTP? so i can't record dry tracks etc anymore now? ...
Sadly that is one of the cons of using ASIO with the Pro-Tracks/Sonar. You can only use one ASIO device at a time. So only USB 1-2 I'm afraid. I should have mentioned that.
In any case, you don't have to uninstall ASIO4ALL. You can go back to WDM driver mode in Pro-Tracks and it should work. Go to ASIO when you need the low latency.
It's always something isn't it?