Voyager XL - R output channel is ~1.5db softer than L

mustgroove · Post by **mustgroove** » Mon Jul 18, 2011 11:47 pm

Just noticed something of a quirk with my Voyager XL - the Right output channel is about 1.5db softer than the Left channel... I'm pretty sure it wasn't quite like that when I first got it, but can't be 100% sure...

It's definitely not the inputs on my soundcard, I tested each input individually with another synth and there's no discrepancy in levels between them... plus swapping over the L and R channel cables at the back of the Voyager makes the L channel the soft one, so it appears to be the L & R outputs on the back of the synth itself...

It's only ~1.5db and I'm perfectly aware of the quirks of analogue gear, but still, wanted to post anyway - is this something anyone else has noticed on their Voyager (normal or XL)?

latigid on · Post by **latigid on** » Tue Jul 19, 2011 12:22 am

Hi, is the filter spacing at zero?

mustgroove · Post by **mustgroove** » Tue Jul 19, 2011 1:01 am

Yes, filter spacing is off... the difference is apparent even on a very simple patch setting - 1 oscillator, filter opened all the way up, filter spacing at zero, no envelopes or modulation, and the R channel is softer than the L channel by 1 to 1.5db consistently...

RL · Post by RL » Tue Jul 19, 2011 3:11 am

How are the filter poles A and B on EDIT page 4.2?

mustgroove · Post by **mustgroove** » Tue Jul 19, 2011 3:32 am

Both are set to 4 Pole...

I've got a couple sound clips to share, hopefully this might shed some light & help get to the bottom of this...

Clip 1 - http://dl.dropbox.com/u/7988988/voyager ... olling.wav - this is a recording of the Voyager's output with no notes being triggered either by MIDI or by the keyboard, which I've then applied ~70db of (digital) gain to to see what's going on all the way down there... I'm scrolling through preset bank A throughout this clip, and you can hear some of the oscillators bleeding into the R channel even though no notes are being triggered

Clip 2 - http://dl.dropbox.com/u/7988988/voyager ... preset.wav - this is a recording of essentially a blank preset (which I generated from the totally blank "Default PROG" preset, G-128 by (a) turning on Osc1, (b) turning Osc1 volume all the way up, and (c) setting filter spacing to zero... no other parameters were touched)... as you can see from the file, the R channel is softer than the L channel... hopefully this test should eliminate variables like filter pole settings, filter spacing, etc. etc.

Signal chain: Voyager XL -> Prism Orpheus inputs 1 & 2, which are inst inputs... gain set to +20db per channel on the Orpheus... No DIs, mixers or anything else in the signal chain whatsoever... cables are Mogami Gold 1/4" mono and are basically new...

If I'm just being pedantic and this is all just a quirk that's well within normal experience for an analogue synth please do let me know

But the responses so far tend to make me think there might be something up?

RL · Post by RL » Tue Jul 19, 2011 3:39 am

Is it possible for you to send me a sysex file of the preset to my email rudi at moogmusic dot de ?

latigid on · Post by **latigid on** » Tue Jul 19, 2011 3:43 am

Or Initialise Parameters?

mustgroove · Post by **mustgroove** » Tue Jul 19, 2011 3:55 am

Rudi - email incoming

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Voyager XL - R output channel is ~1.5db softer than L

Voyager XL - R output channel is ~1.5db softer than L

Re: Voyager XL - R output channel is ~1.5db softer than L

Re: Voyager XL - R output channel is ~1.5db softer than L

Re: Voyager XL - R output channel is ~1.5db softer than L

Re: Voyager XL - R output channel is ~1.5db softer than L

Re: Voyager XL - R output channel is ~1.5db softer than L

Re: Voyager XL - R output channel is ~1.5db softer than L

Re: Voyager XL - R output channel is ~1.5db softer than L