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Forum: Old versions

Topic: Bugs in 5.0 rev6 - hesitations/squeal, mystery start

Questo argomento è obsoleto e potrebbe contenere informazioni obsolete o errate.

I ran rev 5.0 rev 6 on XP for 40 hours this weekend, trying to figure out any issues.

1. Squeals (and hesitations)

Even with every unnecessary service turned off (on a brand new DELL Core 2 DUO), I get hesitations and squeals occasionally (using a MOTU 828 Mark II firewire interface, thats been perfect for 6 years). I ran PROCEXP (which can show a simulataneous graph of all processes) to find the culprit, and the culprit always seemed to be Virtual DJ itself. I would see a big processor spike in VDJ whenever the squeal occured - no other windows processor was spiking). [wireless, etc are all off].

It appears that the interface, analyzing an unknown track, or searching can simply swamp the CPUs. This needs to be throttled, because squeals are not something I can live with. I used a much weaker machine to do perfect editing with 24 audio tracks and effects in Cakewalk SONAR. This machine should be able to play two tracks in its sleep.

I have latency at 1024 (high) and all quality setting low to try to eliminate it, but its very frustrating, because you know there is no reason to have playback problems on a dual-core 3GB machine.

2. Mystery starts. This one is annoying because now I can't walk away from my machine with confidence. Using the new auto-play, everything is fine for 3 or 4 songs (playing out of one deck). Then the other deck magically starts playing. I'm in the other room, so its definate nothing I'm doing. I need to run over and pause the other deck. Then its fine for 3 or 4 more songs. ARRRRG.

 

Inviato Mon 28 Jan 08 @ 5:45 am
1. Possible update on this item 1. I found that my DELL had a DVD driver with too high of a DPC Latency behavior, so I've disabled it. Bummer to have to disable it (because now I can't rip a CD during a show), but no stops or squeals in the 60 minutes since I did that, so maybe I've got it fixed.

Here's an unrelated performance issue that is on both 5.0 rev6 and also on 4.3: It's always been easy to reproducde, even on fast machines, to cause a hesistation in audio playback by doing the following... play a track on both turntables and then open a third track for preview. Then try to advance to some later point in the preview window. Everything (including the graphic turntables) stops for a split second. Unfortunately, this is quite often a real-world situation, as I'll often have two songs on the decks, want to preview something, and want to jump to the middle of the preview to check tempo. Anybody else have this?

As always, its not ever desirable for a pro to have a gap in the sound. I wonder if it has anything to do with the GUI item used for "preview track" - maybe the control generates a bunch of reposition events when you move the slider, instead of just one.
 

ebinary wrote :
Here's an unrelated performance issue that is on both 5.0 rev6 and also on 4.3: It's always been easy to reproducde, even on fast machines, to cause a hesistation in audio playback by doing the following... play a track on both turntables and then open a third track for preview. Then try to advance to some later point in the preview window. Everything (including the graphic turntables) stops for a split second. Unfortunately, this is quite often a real-world situation, as I'll often have two songs on the decks, want to preview something, and want to jump to the middle of the preview to check tempo. Anybody else have this?

It's a known problem but only when you fastly move the slider.
 

OK, thanks for the tip. I'd prefer that it doesn't try to locate into the song until you release the mouse. I prefer anything that doesn't cause a drop out ;-)
 

ebinary wrote :
I ran rev 5.0 rev 6 on XP for 40 hours this weekend, trying to figure out any issues.

1. Squeals (and hesitations)

Even with every unnecessary service turned off (on a brand new DELL Core 2 DUO), I get hesitations and squeals occasionally (using a MOTU 828 Mark II firewire interface, thats been perfect for 6 years). I ran PROCEXP (which can show a simulataneous graph of all processes) to find the culprit, and the culprit always seemed to be Virtual DJ itself. I would see a big processor spike in VDJ whenever the squeal occured - no other windows processor was spiking). [wireless, etc are all off].

It appears that the interface, analyzing an unknown track, or searching can simply swamp the CPUs. This needs to be throttled, because squeals are not something I can live with. I used a much weaker machine to do perfect editing with 24 audio tracks and effects in Cakewalk SONAR. This machine should be able to play two tracks in its sleep.

I have latency at 1024 (high) and all quality setting low to try to eliminate it, but its very frustrating, because you know there is no reason to have playback problems on a dual-core 3GB machine.

2. Mystery starts. This one is annoying because now I can't walk away from my machine with confidence. Using the new auto-play, everything is fine for 3 or 4 songs (playing out of one deck). Then the other deck magically starts playing. I'm in the other room, so its definate nothing I'm doing. I need to run over and pause the other deck. Then its fine for 3 or 4 more songs. ARRRRG.


Have you used vista at all ?
 

nope - no vista. I've got too many machines to support to add an OS. I think I'd rather add a Mac if I want to relearn the names of everything on my control panel ;-)
 

I also have a problem with "mystery starts", and they always happen after I've used Automix. (And when I've walked out of the DJ booth for a moment.)
 

Thats scary, I hoped maybe it was a hardware glitch. I am trying to get in the habit of "dumping" the first deck so it won't cause problems if it starts. Mixlab skin has a dump button.

In tech support: noone has read the issue yet (sent Monday).
 



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