Eventide blackhole vs VVV

[valhallasound]

I have VVV, but I would like to know how I can identify what linear interpolation artefacts sounds like.
If somebody could point it out to me once what it is I have to listen for, than I can do it on my own in the future.

The main artifact: Linear interpolation sounds darker. It doesn't necessarily introduce noise - linear interpolation can be very clean in that regard. The sonic difference tends to be a gentle rolloff of high frequencies, starting at around 1/4 of the sampling rate.

ValhallaShimmer is a really easy place to hear this. The dark color mode just switches over to linear interpolation. That's the only change.

In other plugins, you can listen for the following artifact: If the sound is fairly bright with the modulation depth at zero, but then gets darker as soon as the modulation depth is set to a non-zero value, the plugin is probably using linear interpolation. I remember hearing this artifact in Eventide UltraVerb - it was fairly bright sounding with no modulation, and then instantly got warmer and darker when the modulation depth was turned up. This is due to these plugins setting the delays to an integer value when the mod depth is at zero.

[deastman]

Okay, but which is better: VVV or VVVV? VVVV has one more V, but it doesn't have a vintage hall algorithm.

[ghettosynth]

Okay, but which is better: VVV or VVVV? VVVV has one more V, but it doesn't have a vintage hall algorithm.

The extra V is for vivacious. If that's something that you want in your reverb, you know what to do!

[Funkybot's Evil Twin]

Okay, but which is better: VVV or VVVV? VVVV has one more V, but it doesn't have a vintage hall algorithm.

Wait for Valhalla Vintage Verb version 5 (or VVV vV if you will).

[deastman]

Okay, but which is better: VVV or VVVV? VVVV has one more V, but it doesn't have a vintage hall algorithm.

My joke may have been too obscure for some of this audience...

https://vvvv.org/

[Hermetech Mastering]

I'll take your four and up you one: https://en.wikipedia.org/wiki/Vi_veri_u ... vivus_vici

[ghettosynth]

Okay, but which is better: VVV or VVVV? VVVV has one more V, but it doesn't have a vintage hall algorithm.

My joke may have been too obscure for some of this audience...

https://vvvv.org/

No, it just needed more funny

[Novalis]

The main artifact: Linear interpolation sounds darker. It doesn't necessarily introduce noise - linear interpolation can be very clean in that regard. The sonic difference tends to be a gentle rolloff of high frequencies, starting at around 1/4 of the sampling rate.

Thank you, Sean.

Seems quite a stretch to me to call a gentle rolloff of high frequencies an artefact, though
But I guess this is a question of definition

[valhallasound]

The main artifact: Linear interpolation sounds darker. It doesn't necessarily introduce noise - linear interpolation can be very clean in that regard. The sonic difference tends to be a gentle rolloff of high frequencies, starting at around 1/4 of the sampling rate.

Thank you, Sean.

Seems quite a stretch to me to call a gentle rolloff of high frequencies an artefact, though

Put 24 linearly interpolated delays in series, and then get back to me on that.

If you are listening to a single delay line in isolation, the high frequency loss of linear interpolation is really subtle. In a feedback loop, it becomes more obvious. Blackhole & ValhallaShimmer both use a ton of allpass delays in series, where each allpass uses a linear interpolated delay in its feedback loop. The slight amount of high frequency loss of the delay gets magnified by the feedback loop, and each allpass delay in series will result in additional high frequency loss.

The best way of hearing this is in ValhallaShimmer, in the mono mode. Turn the High Cut up to 15000 Hz, then switch between bright and dark color modes. The Bright mode will have high frequency reverb that lasts as long as the low frequency reverb. The Dark mode will have a much quicker attenuation of high frequencies in the decay.

I call the linear interpolation effects an "artifact," in that the high frequency attenuation is often viewed as an undesirable effect of linear interpolation. In reality, most algorithm developers that use linear interpolation will design the algorithms around these characteristics. Linear interpolated delay lines inside of allpass delays can help tame the high frequency decay of these blocks, which can otherwise sound brittle. In an FDN, you almost always want some high frequency attenuation, as real world acoustic spaces have a fair amount of attenuation at higher frequencies due to air absorption.

Sean Costello

[Novalis]

In an FDN, you almost always want some high frequency attenuation, as real world acoustic spaces have a fair amount of attenuation at higher frequencies due to air absorption.

Exactly, that's why I thought that it's a bit odd to call it an artefact - but I understand what you mean.

I usually cut the high-end of most of my reverbs anyway somewhat, so I guess in that case the results will sound very similar, with or without linear interpolation, right?

[Sparky77]

Is it possible to get close to the sound of the blackhole with Valhalla vintage verb? It's a unique ambienty lush sound. I found an echo-something preset in vvv that was somewhat similar.

Any thoughts? Or is the blackhole unimitable?

They sound very different.

BOTH have useful qualities.

Vintage verb does what its name implies, vintage verbs.
You could say the same about blackhole, it does a great job at doing uniquely deep, ambient spaces with lots of personality.

Blackhole doesn't sound like other reverbs.

[DGillespie]

Hey everyone, Hey Sean,

Another interesting thing about the filtering that comes from linear interpolation in a modulated delay line is that the amount of filtering changes changes as you modulate the delay. It's not always what you want, but it can create a nice secondary modulation effect, especially when used on multiple delays at once.

Dan Gillespie,
A developer at Eventide

[e@rs]

Hi Dan Eventide, I've been curious about this one for a while. Sorry for the off-topic, but I couldn't help it... What does 'Omnipressor it's a Mono-In Mono-Out' mean (written in the manual)? Also where are the changelogs for newer versions of your plugins?

[DGillespie]

That appears to be old information in the Omnipressor manual, I just updated it to correctly reflect that there is now a mono and a stereo version of Omnipressor.

I don't know what happened to the changelists, they seem to have mysteriously disappeared from the download section of the website. I'm going to try to figure out how we can get them back up.

Dan

[ghettosynth]

That appears to be old information in the Omnipressor manual, I just updated it to correctly reflect that there is now a mono and a stereo version of Omnipressor.

I don't know what happened to the changelists, they seem to have mysteriously disappeared from the download section of the website. I'm going to try to figure out how we can get them back up.

Dan

Dan, thanks for hanging out here. It's awesome to have developers from more established companies here chatting with us and giving that kind of customer support. The Ultrachannel giveaway put you guys on my radar and I have to say that I've been extremely happy with both the giveaways and my subsequent purchases.