AP 7.0a and midi tracks= SLOW performance -ACID Product Family

Subject:AP 7.0a and midi tracks= SLOW performance Posted by: Clifford Date:1/27/2009 3:01:28 AM I have been having issues with AP- removed ASIO drivers and ProTools software- reinstalled the ASIO drivers for Echo Indigo- One project was painfully slow- Acid exe was low cpu until you tried to scroll or zoom, etc. Eventually discovered it was because of a 3 minute midi track composed of a single 4 bar loop drawn across 3 minutes. If I shorten it the performance issue lessens and goes away entirely if the track is removed. The synth it was outputting to was Addictive Drums but AD has caused no issues in the other projects I am using it in. Not sure why a 4 bar repeated midi loop can bring AP to it's knees but it does. C
Subject:RE: AP 7.0a and midi tracks= SLOW performance Reply by: pwppch Date:1/27/2009 7:57:16 AM Clifford, Could you characterize the midi loop? Is this a file you imported or did you create it in ACID? Does it have a lot of notes or is it sparse? Thanks Peter
Subject:RE: AP 7.0a and midi tracks= SLOW performance Reply by: Clifford Date:1/27/2009 11:59:39 AM Very sparse- dragged to midi track from Addictive Drums library- you can grab the demo and see the file if needed- file is Straight Beat 001 - 8th HH Clean (closed) It is a 2 bar loop- hats on 8th beats, kick and snare single hits alternatingon 1/4 notes- 16 hats, 4 kick, 4 snare= 24 notes total The track has only 24 note on events in the list editor It seems to have a custom controller map for Addictive Drums Tried setting the midi track output to off but no difference. Also the midi is set to loop so I just drag it out and it repeats. I created a blank project with no soft synths and a midi track with a 2 bar loop of basic drum beat- same thing- once I drag it out for a few minutes the project becomes painfully slow and cpu is 100% just to scroll left to right. Even when the midi track is shorter there is still dramatic cpu spike and usage when scrolling- only with midi tracks involved- audio only does not have this issue. EDIT- I just tested the same project on my desktop computer which is a Pentium D 820 (dual core at 2.8GHz) with 3GB of RAM and it behaves exactly the same although it never uses 100% of both cores- only 75% of one but performs the same in terms of how slow it scrolls with midi file drawn out. C Message last edited on1/28/2009 2:51:13 AM byClifford.

Subject:AP 7.0a and midi tracks= SLOW performance

Posted by: Clifford

Date:1/27/2009 3:01:28 AM

I have been having issues with AP- removed ASIO drivers and ProTools software- reinstalled the ASIO drivers for Echo Indigo-
One project was painfully slow- Acid exe was low cpu until you tried to scroll or zoom, etc. Eventually discovered it was because of a 3 minute midi track composed of a single 4 bar loop drawn across 3 minutes. If I shorten it the performance issue lessens and goes away entirely if the track is removed. The synth it was outputting to was Addictive Drums but AD has caused no issues in the other projects I am using it in.

Not sure why a 4 bar repeated midi loop can bring AP to it's knees but it does.

C

Subject:RE: AP 7.0a and midi tracks= SLOW performance

Reply by: pwppch

Date:1/27/2009 7:57:16 AM

Clifford,

Could you characterize the midi loop?
Is this a file you imported or did you create it in ACID?
Does it have a lot of notes or is it sparse?

Thanks
Peter

Subject:RE: AP 7.0a and midi tracks= SLOW performance

Reply by: Clifford

Date:1/27/2009 11:59:39 AM

Very sparse- dragged to midi track from Addictive Drums library- you can grab the demo and see the file if needed- file is Straight Beat 001 - 8th HH Clean (closed)
It is a 2 bar loop- hats on 8th beats, kick and snare single hits alternatingon 1/4 notes-
16 hats, 4 kick, 4 snare= 24 notes total
The track has only 24 note on events in the list editor
It seems to have a custom controller map for Addictive Drums

Tried setting the midi track output to off but no difference. Also the midi is set to loop so I just drag it out and it repeats.

I created a blank project with no soft synths and a midi track with a 2 bar loop of basic drum beat- same thing- once I drag it out for a few minutes the project becomes painfully slow and cpu is 100% just to scroll left to right. Even when the midi track is shorter there is still dramatic cpu spike and usage when scrolling- only with midi tracks involved- audio only does not have this issue.

EDIT- I just tested the same project on my desktop computer which is a Pentium D 820 (dual core at 2.8GHz) with 3GB of RAM and it behaves exactly the same although it never uses 100% of both cores- only 75% of one but performs the same in terms of how slow it scrolls with midi file drawn out.

C

Message last edited on1/28/2009 2:51:13 AM byClifford.