Re-amping multiple Tracks from one DI-track via SPDIF. Horrible Phasing / Sound. Constant Latency enabled

I've never heard of the constant latency switch. I've reamped and merged with analog and the Kemper USB without an issue. This is one heavy tone that had several mic'd cabs (3-5) to get one sound. I like it.

Maybe turn off that switch?

Very few situations where constant latency is needed. This doesn't sound like one of them.

First start with two tracks. Then nudge one track slightly backwards until it sounds good. Perhaps only one sample at a time.

I too find it hard to reamp because the tracks end up out of phase.

Constant latency can indeed be important. The magic is to introduce the Kemper into your DAW as an outboard gear, e.g. for me as an external effect in Cubase. When setting this up you can let the DAW measure the overall latency of the whole chain: Going out from DAW to Kemper, processing in Kemper, sending back to DAW. Now once this latency is figured out the DAW will automatically align the tracks exactly when this is used for reamping

If "Constant Latency" would be disabled then the measured value would only be true for the particular rig and settings. Again you'd have phasing then.

Yes, I know, not all DAWs do offer that latency adjustment for external gear. But the better ones do!

And yes, you can reamp without that but then, exactly as musicmad wrote it, you'll need to manually align the tracks to make sure you do not run in phasing issues.

Try zooming in as much as possible on the recorded tracks, to see if they indeed line up.

Do you have any plugins loaded in the session - anywhere?

Quote from DonPetersen

reamping the same DI through multiple PROFILEs is one of the very reasons it was implemented.

I stand corrected.

Quote from Metallsau

i think they can´t line up perfectly as every "amp" alters the Waves anyways - am i right?

Yeah, the waveforms will not be exactly alike - but sometimes you are able to see that one starts significantly earlier than the other one when zooming in. Especially if you start with a good, sharp transient.

Quote from Metallsau

without constant latency the Tracks will be out off phase anyways because the

latency in ms is different with different rigs.

so Constant latency is as far as i know exactly for that situation.

but it does sound absolutely horrible.

i try to bounce some examples.

thick sound!

how was your process ?

what do you mean by merge?

so you re-amped the same di into the Kemper

several times with the same Amp but different ir´s for each pass ?

and then blend it in the DAW?

thanks

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Each reamp gets a new profile. If you want, you can use the same cab on each profile but I use whichever comes with the profile's default. Then I take those individual reamped tracks and merge --->send them to a master bus (master track) so I can apply one FX/EQ to all them equally. It should not sound horrible at all but remember to lower the gain on each profile you reamp or you will get into fuzzland pretty quickly.

Another thing to note is that the initial profile that you used to make the DI can be muted/or deleted. Yo don't have to include that one because that's usually why you reamp -- to get a better sound on the next run.

Try reamping and merging a Mesa profile with a Plexi and a 5150. Play each profile at a tone you like then cut the gain on each one by 1.5-2.0 on the reamp then merge. I would even be temped to add a Vox or Fender profile into the merge.

Quote from Metallsau

no plugins.

i think they can´t line up perfectly as every "amp" alters the Waves anyways - am i right?

i ran it through Auto Align Plugin but it still sounds like trash.

True. But did you try nudging them as I suggested?

Quote from BayouTexan

Another thing to note is that the initial profile that you used to make the DI can be muted/or deleted. Yo don't have to include that one because that's usually why you reamp -- to get a better sound on the next run.

Yeah, good point - because that one will NOT be aligned in time with the reamped ones

After trying many times with multiple amps, both Kemper and real, I've never found something that is really great.

Finding a better profile form a single source, or playing more DIs for each reamp is a much better tone for me. So if one rhythm each side isn't fat enough, I'll play 4 parts and maybe use a different amp then.

Quote from Michael_dk

Yeah, good point - because that one will NOT be aligned in time with the reamped ones

Which is actually a bit wierd. I patched in the Kemper as an outboard effect in Cubase, and Cubase measured the latency and compensated (as it does). Still it sounded wierd.

Also noted that if I record DI/Stack in Cubase over spdif on two different tracks, then the DI is DELAYED in relation to the stack. It's wierd.

Quote from musicmad

I patched in the Kemper as an outboard effect in Cubase, and Cubase measured the latency and compensated (as it does).

Which I do exactly the same way, see my post above. Nevertheless I do not have the phenomenon you describe. If I record DI/Stack on two tracks and then reamp the DI track with the exact profile I get exactly the same "wet" track. And if the latency compensation did the job well they are so well aligned that they eliminate each other if I flip the phase of one "wet" track. Silence then. Perfect for me.

So what goes wrong where?

Quote from musicmad

Which is actually a bit wierd. I patched in the Kemper as an outboard effect in Cubase, and Cubase measured the latency and compensated (as it does). Still it sounded wierd.

Also noted that if I record DI/Stack in Cubase over spdif on two different tracks, then the DI is DELAYED in relation to the stack. It's wierd.

Could you try deactivating all other tracks, or use a fresh session to try reamping?

Quote from deadman42

Which I do exactly the same way, see my post above. Nevertheless I do not have the phenomenon you describe. If I record DI/Stack on two tracks and then reamp the DI track with the exact profile I get exactly the same "wet" track. And if the latency compensation did the job well they are so well aligned that they eliminate each other if I flip the phase of one "wet" track. Silence then. Perfect for me.

So what goes wrong where?

Not sure. I might try again. It's been a while since I gave up on it. I can also reamp using USB now on my stage.