Sonic Reality

woodie · Post by **woodie** » Mon Dec 04, 2006 1:08 pm

for those of you who have both Ampeg SVX & Amplitube 2 - are you noticing a big increase in CPU Usage between the two?

I'm using Live 5.2.2 and if I drop either in a blank project with just 1 MIDI track - I'm getting the below CPU percentages...no patch selecting, just whatever the default is in both when pulling it up:

Amplitube 2 - v2.1.0 build 6K16 (recent update): 8-9%
Ampeg SVX - v1.1.0 build 6K24 (recent update): 19-20%

* CPU bumps up to those numbers when interfaces are open; if closed/minimized but still "active"...both go down to 0%
* tried the same in LIVE 6.0.1 Demo and getting the same numbers
* also...didn't take notice until after I applied the recent updates, so no idea if it was doing that in the previous version.

I just thought that since the two are virtually the same, they shouldn't be THAT much of a difference. Anyway...just want to run it by you guys and see if anyone is seeing the same thing.

ADDED NOTE: in case anyone asks - both figures were the result of testing them *by themselves* in the project of course....not simultaneously.

Squids · Post by **Squids** » Mon Dec 04, 2006 2:37 pm

Try testing out the updates of both now that they are both currently updated online to their 2.1 versions.

woodie · Post by **woodie** » Mon Dec 04, 2006 2:53 pm

oops....made a one number blunder there, squids - I meant Amplitube v2.1...not v1.2!

fixed. also just checked the IK site and these 2 versions are the latest.

Squids · Post by **Squids** » Mon Dec 04, 2006 3:34 pm

holymoly wrote:oops....made a one number blunder there, squids - I meant Amplitube v2.1...not v1.2!

fixed. also just checked the IK site and these 2 versions are the latest.

So you downloaded the latest update to Ampeg SVX for this test? It was just uploaded very recently.

woodie · Post by **woodie** » Mon Dec 04, 2006 4:01 pm

yep...double-double confirmed using the latest here, squids. straight from the IK site as well:

Ampeg SVX version 1.1 (Build 6K24)
Date: 2006-11-29

AmpliTube 2 version 2.1 (Build 6K16)
Date: 2006-11-17

Squids · Post by **Squids** » Mon Dec 04, 2006 4:09 pm

holymoly wrote:yep...double-double confirmed using the latest here, squids. straight from the IK site as well:

Ampeg SVX version 1.1 (Build 6K24)
Date: 2006-11-29

AmpliTube 2 version 2.1 (Build 6K16)
Date: 2006-11-17

Interesting. Maybe Ampeg SVX just requires more juice I guess then. I will test the difference myself out of curiosity. Still though... worth it eh? Ampeg SVX sounds amazing on just about every bass track I put it on.

woodie · Post by **woodie** » Mon Dec 04, 2006 4:28 pm

OH YEAH - I'm thinking it's going to have to go on pretty much every bass track now! I use Trilogy for most of my bass stuff right now, so the little that I've played around on it, Ampeg definitely adds a certain oomph and character that I really like esp for the "electric" stuff, but there's SO MUCH I need to learn and experiment with though and mind you - I only have had the TSB for not too long now, so I'm still getting to know the whole package!

Ampeg is great for me as eventually I'll be getting a bass (long overdue)...too many guitars on the wall, although Santa just ordered a mandolin for x-mas so I can finally play Maggie May with the actual instrument.

let me know how the test goes on your side.

flynn · Post by **flynn** » Mon Dec 04, 2006 5:17 pm

I think the main reason for the difference you got is that Ampeg has "high resolution" as default in the prefs, but Amplitube2 doesn't. If I uncheck "high resolution" in Ampeg, it goes down to appx. 12% If I check all "high resolution" and oversamplings in AT2, it goes to appx. 20%

So Ampeq is heavier, but not that much (and it's worth it. Sounds amazing

)

EF

woodie · Post by **woodie** » Mon Dec 04, 2006 5:36 pm

ahhh!! looks like you're indeed correct, flynn. just had a minute to quickly test it and there was indeed a noticeable difference and at first go...unchecking the High Resolution in Ampeg, dropped it down to 12-13%. I'll have to do more testing later (busy now)....but that surely looks like that's reason for the differences...and yeah, Amplitube 2 was unchecked on those settings, so I probably changed the settings and totally forgot about it.

perfect example of why forums are so great!

cheers...

hibidy · Post by **hibidy** » Thu Dec 14, 2006 4:46 am

this method helps allot but what I've noticed is that if you turn the cabs off, the cpu drops 25%.........doesn't seem right to me but hey....

hibidy · Post by **hibidy** » Tue Dec 19, 2006 3:37 am

Yeppers, after using the demo of svx on macintel I'm sold except for one thing. The bass cabs add a considerable amount of cpu usage.

To reproduce this, open one of the presets that pushes up pretty hard, and ditch the cab (bypass) and on my system I get a substantial cpu decrease. Of course alternatively, you can just load up a non-cab setup from the gound up (maybe do a comp/fx to help push up the cpu some for testing purposes) and THEN add a cabinet. The lowest seems to be the 15"...the other cabs seem to to push the cpu as much as 25 percent. Sorry, my demo expired so I don't have a way to give specifics right now.

joeykusack · Post by **joeykusack** » Fri Jan 05, 2007 9:47 am

wow, I too had the same experience! I couldn't understand why the cpu useage was so high (recently seen many reviews stating how low it was) but sure enough, turned the speaker emulation off and the cpu dropped a bunch!

Sorry, can't buy this one with that isue

A3ntar · Post by **A3ntar** » Wed Jan 10, 2007 5:31 am

holymoly wrote:for those of you who have both Ampeg SVX & Amplitube 2 - are you noticing a big increase in CPU Usage between the two?

I'm using Live 5.2.2 and if I drop either in a blank project with just 1 MIDI track - I'm getting the below CPU percentages...no patch selecting, just whatever the default is in both when pulling it up:

Amplitube 2 - v2.1.0 build 6K16 (recent update): 8-9%
Ampeg SVX - v1.1.0 build 6K24 (recent update): 19-20%

* CPU bumps up to those numbers when interfaces are open; if closed/minimized but still "active"...both go down to 0%
* tried the same in LIVE 6.0.1 Demo and getting the same numbers
* also...didn't take notice until after I applied the recent updates, so no idea if it was doing that in the previous version.

I just thought that since the two are virtually the same, they shouldn't be THAT much of a difference. Anyway...just want to run it by you guys and see if anyone is seeing the same thing.

ADDED NOTE: in case anyone asks - both figures were the result of testing them *by themselves* in the project of course....not simultaneously.

Why would you assume that they should have the same CPU useage? They are two different applications.

I don't think that 20% CPU should be a deal breaker though.

hibidy · Post by **hibidy** » Wed Jan 10, 2007 6:56 am

I dunno about any of it, but I cannot believe nobody has chimed in about the cabinet or/off thing I mentioned.

It's dramatic.......

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Ampeg SVX vs Amplitube2 - CPU Usage