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Author Topic: Latency with SPX90  (Read 690 times)

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Chip Roberts

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Latency with SPX90
« on: Time Format »

I recently completed my Rack of Back with an SPX90II (new battery), but at rehearsal I noticed about a half second of latency between patches when using it with my footswitch.  Any idea what might be causing this?

I have it going MP1 - MIDI Thru - SPX90 - MIDI In
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Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/Yamaha SPX90II/MosValve 1160

Pedalboard:
Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/Digitech Control 7/

Cabinet:
Custom 2X12 with WGS Retro 30/HM75

Guitars:
Gibson Custom Shop Flying V - Dimarzio X2Ns
Gibson Les Paul Standard - Dimarzio Crunch Lab/Tone Zone
Gibson Custom Shop Explorer - Dimarzio MegaDrive/Air Norton
CC Clarke Superstrat - Dimarzio Evolution
No-Name Superstrat - Dimarzio Steve's Special/HS4/HS4
Ovation Matrix
Ibanez AC130
Washburn Lyon LB21

Other Rack Gear:
Peavey TG Raxx
Digitech GSP21 Legend

Other Pedals:
Morley Bad Horsie 2
Boss NS2
Digitech Whammy

Wishlist:
Carvin X100B
Laney AOR
Marshall JCM800
Marshall Jubilee
ADA Microtube 100
Roland GP8
Rocktron Intellifex Blackface
Lee Jackson SP1000

rnolan

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Re: Latency with SPX90
« Reply #1 on: Time Format »

Hey Chip, a bit of a guess  :dunno: , I remember a time (and it's from the era of the SPX90)when you sometimes had to program some midi latency to get certain devices to play (behave) with each other (this is back in the Atari sequencing days using Quebase or Notator and Alesis drum machines and Korg MOne Keyboards etc. recording analog was still using tape with a SMPTE track on the tape to lock them together).  Now I have an original SPX90 and never midi'd it up, just changed programs on the front.  However, yours is a later variant and "may" (pure guess here BTW) have midi latency options in the menu some where (worth a look).  Otherwise, it should change ~instantly given you are feeding it from midi through (unless the MP-1 has latency options for the midi through which I don't recall it does).
Then again, it may just be that gadgets from that era didn't react as fast ?? but half a second is allot.  That said, the original MP-2 had quite a lag between program changes which ADA fixed with a firmware upgrade.

It may also be program dependent, i.e. if you change from a big reverb/delay whatever, the SPX may delay the change until the tail of the signal/effect is finished so you don't get a glitch (smoothness)??
« Last Edit: Time Format by rnolan »
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

van Sinn

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Re: Latency with SPX90
« Reply #2 on: Time Format »

The MP-1 has no programmable options for MIDI-through; it's purely MIDI-in with an analog buffer.
To my memory, the SPX90 doesn't delay midi switching based on effects, but don't take my word for it..
Sounds fair that it could be a matter programed latency for matching other gear; interesting..
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MikeB

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Re: Latency with SPX90
« Reply #3 on: Time Format »

When I first patched in my gmajor2 i went to its midi in and through to the mp1.  There was a lag so I changed it to go into the mp1 and through to the gmajor2. Now it's fine. I don't think your problem is in the mp1.
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Chip Roberts

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Re: Latency with SPX90
« Reply #4 on: Time Format »

Mike,

So if I'm understanding correctly, you're saying just plug my footswitch into the Yamaha and then that'll talk to the MP1 versus the other way around?
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Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/Yamaha SPX90II/MosValve 1160

Pedalboard:
Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/Digitech Control 7/

Cabinet:
Custom 2X12 with WGS Retro 30/HM75

Guitars:
Gibson Custom Shop Flying V - Dimarzio X2Ns
Gibson Les Paul Standard - Dimarzio Crunch Lab/Tone Zone
Gibson Custom Shop Explorer - Dimarzio MegaDrive/Air Norton
CC Clarke Superstrat - Dimarzio Evolution
No-Name Superstrat - Dimarzio Steve's Special/HS4/HS4
Ovation Matrix
Ibanez AC130
Washburn Lyon LB21

Other Rack Gear:
Peavey TG Raxx
Digitech GSP21 Legend

Other Pedals:
Morley Bad Horsie 2
Boss NS2
Digitech Whammy

Wishlist:
Carvin X100B
Laney AOR
Marshall JCM800
Marshall Jubilee
ADA Microtube 100
Roland GP8
Rocktron Intellifex Blackface
Lee Jackson SP1000

MikeB

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Re: Latency with SPX90
« Reply #5 on: Time Format »

No,  I  go footswitch - > mp1 midi in - > mp1 midi through - > gmajor2 midi in
I believe that's the way around that you have it. When I had it the reverse, I noticed some latency. I was only trying to say that I don't think the issue is in the mp1.
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Chip Roberts

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Re: Latency with SPX90
« Reply #6 on: Time Format »

Thanks for clearing that up, Mike.  I'll give that a shot when I get back to The Pleasuredome.

I don't think it's an issue with the MP1 either because I had it in my main rig for several months and never had any latency trouble, though that was with my Midiverb, so who knows  :dunno:
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Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/Yamaha SPX90II/MosValve 1160

Pedalboard:
Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/Digitech Control 7/

Cabinet:
Custom 2X12 with WGS Retro 30/HM75

Guitars:
Gibson Custom Shop Flying V - Dimarzio X2Ns
Gibson Les Paul Standard - Dimarzio Crunch Lab/Tone Zone
Gibson Custom Shop Explorer - Dimarzio MegaDrive/Air Norton
CC Clarke Superstrat - Dimarzio Evolution
No-Name Superstrat - Dimarzio Steve's Special/HS4/HS4
Ovation Matrix
Ibanez AC130
Washburn Lyon LB21

Other Rack Gear:
Peavey TG Raxx
Digitech GSP21 Legend

Other Pedals:
Morley Bad Horsie 2
Boss NS2
Digitech Whammy

Wishlist:
Carvin X100B
Laney AOR
Marshall JCM800
Marshall Jubilee
ADA Microtube 100
Roland GP8
Rocktron Intellifex Blackface
Lee Jackson SP1000
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