Muff's Modules & More

richardm123uk · Posted: Sat May 23, 2009 10:28 pm Post subject: Calibration Problems

Hi there all,

I am having difficulty with Volta calibrating my VCO's. I have tried without success with my RS95 and AFG.

I think that the cables I am using are fine. I had them custom made last week. I can effect the signal with all the settings in Volta (LFO's, Triggers.......) but just cannot get it to calibrate.

The red line is working fine (moves during change of pitch). I am using Live 7.

So the live set up simply is Audio from 1- Volta> cv-output 1/2 volta Audio To Ext. Out 1/2 (Ext. Out 1/2 being the outputs from my Ultralite MK3 into my eurorack).

2nd audio channel Audio from Ext.in 7/8 (output of VCO goes in here) audio to 1 - Volta.

Any suggestions. Also should I be hearing anything when I calibrate. Even with preview is on I just here a click or two?.

Cheers,
Richard

richardm123uk · Posted: Sun May 24, 2009 6:43 pm Post subject:

So I just got everything working. A strange thing is when I set Volta to send CV's from Volta 1/2 to my Ultralite outputs 1 & 2 it seems to send from outputs (Ultralite) 3&4 even though nothing is plugged out from 3&4. Confused!!!!!.

Anyhow it seems that if I use my Frequenstiener in BP mode Freq & Res around 12:00 then Volta calibrates everytime.

Cheers,
R

system700 · Guest

Audio in is 5.

Volta dont see to send a signal out in cali mode?

I do not get the red point in calibration modus. meh

Plus there is a bug with my source. See Picture.

Thank you for your Help.

TWINSTATES · Posted: Fri Jun 05, 2009 9:21 am Post subject:

System 700,

I have the same issue exactly.

I am not sure if I am running the latest update however.

Gonnna check now.

TWINSTATES · Posted: Fri Jun 05, 2009 9:46 am Post subject:

Latest update fixed it.
smile

stretta · Posted: Fri Jun 05, 2009 9:59 am Post subject:

system700 · Guest

goiks · Posted: Tue Jun 23, 2009 12:45 pm Post subject:

If anyone can help me, I'd sure appreciate it. I had Volta running fine with my Traveler, but now I have an 896mk3 and I can't seem to calibrate. I've exhausted all I know how to do, watched the video several times and used the troubleshooting flowchart.

Mac OSX 10.5.7, Live 8.0.4, Volta 1.03. DSP on the 896 is off. Cables and levels have been checked, tried with multiple oscillators. Screenshot attached. An LFO in Volta works fine to modulate oscillator pitch. Preview gives me my oscillator tone. When I try to calibrate, Volta sends a series of voltages, and instead of discrete voltage steps changing pitch like they did with the traveler, I get a portamento effect between steps and calibration fails. I'm probably missing something obvious, but I'm at a loss to see what it is.

stretta · Posted: Tue Jun 23, 2009 12:49 pm Post subject:

The 896mk3 is not DC coupled.

The 896 and the 896HD are DC coupled.

goiks · Posted: Tue Jun 23, 2009 12:59 pm Post subject:

goiks · Posted: Tue Jun 23, 2009 12:59 pm Post subject:

d'oh. thanks.

rezzn8r · Posted: Tue Jun 23, 2009 1:54 pm Post subject:

1nput0utput · Posted: Tue Jun 23, 2009 3:03 pm Post subject:

auricle · Posted: Tue Jun 23, 2009 3:11 pm Post subject:

Interestingly, it says on the Volta page of MOTU's website that any of their interfaces will work.

stretta · Posted: Tue Jun 23, 2009 3:15 pm Post subject:

stretta · Posted: Tue Jun 23, 2009 3:17 pm Post subject:

auricle · Posted: Tue Jun 23, 2009 3:34 pm Post subject:

stretta · Posted: Tue Jun 23, 2009 4:00 pm Post subject:

auricle · Posted: Tue Jun 23, 2009 6:06 pm Post subject:

goiks · Posted: Mon Jun 29, 2009 11:33 pm Post subject:

I'm sorry to keep posting here with what feels like stupid questions, but now I'm trying to use my 896mk3 for audio, and a traveler (not mk3) exclusively for volta. mac osx current, live 8.0.4, volta 1.03. i think i have a handle on how it should be set up, and had it working fine without the 896 in the picture.

i have the traveler hooked up to the 896 via firewire (a long one, 10'), and the 896 to my computer. calibration doesn't stick. i have to try multiple times to calibrate, and when it does work it drifts upward when playing notes at the higher end of the range.

i don't have a dc adapter to power the traveler directly. could that be the problem, or the length of the firewire cable? thanks for any help.

stretta · Posted: Tue Jun 30, 2009 10:41 am Post subject:

goiks · Posted: Tue Jun 30, 2009 10:53 am Post subject:

thanks stretta. the pitch appears to be slightly mis-calibrated (<10Hz too high) in the higher registers when i initially hit a key, and then continues to drift 2-5 Hz further (i have the square output of the osc i'm calibrating feeding the z3000's external in which i'm using to observe these values). i'll go home at lunch and retry, removing the 896 if necessary to attempt to isolate what's going on. knowing it's probably not the firewire cable length helps, thanks. oh, and i tried it with the plan b m15 and livewire afg.

goiks · Posted: Tue Jun 30, 2009 3:37 pm Post subject:

tried again at lunch, got everything working ok starting from scratch; i really appreciate you trying to duplicate the problem stretta. thumbs up

i don't know exactly what the issue was.

fwiw - the problem appeared right after i attempted to go to 48kHz (to use the mk3 spectral analysis/oscilloscope) instead of 96kHz. that caused some weirdness with live for a bit, but after several restarts things seem to be back to normal.

syncretism · Posted: Tue Jun 30, 2009 7:45 pm Post subject:

I think it's natural to assume that TRS and XLR would be functionally the same for use with Volta - at least, I'd interpret it as "don't use an interface with TS jacks." Stating specifically that the 896 Mk3 doesn't work is desirable, IMHO.

doctorvague · Posted: Wed Jul 01, 2009 7:12 am Post subject:

1nput0utput · Posted: Wed Jul 01, 2009 8:17 am Post subject: