3.1.3 BPM Sync Problems

[Fordster]

Happy New Year, all...

I've been working with 3.1.3 for a wee while, and recently purchased the full version. We used this during our shows at New Year and, though it crashed once or twice, a bigger problem was that after a while, the BPM of the loops and effects become "detached" from the actual tempo. Though the main tempo is staying exactly in thime with the audio, anything assigned to BPM doesn't match it. The loops and effects still show their length in bars, and the resync button starts everything at the same time, but anything assigned to BPM (timeline, effects etc) seem to play far slower than the actual tempo.

Much like the recent problem described here http://www.resolume.com/forum/viewtopic.php?f=13&t=6238 by GeeEs, the problem gets worse over time. Even closing and re-opening the program doesn't solve the problem.

Any ideas? Although 3.1.1 worked fine, the new effects and better deck switching in 3.1.3 mean I'd like to stay with that version.

[Joris]

Hey Fordster

Thanks for reporting your findings.

Can you give us a bit more information on what your setup was like (what machine specs, what kind of audio and video clips, what sort of effects, after how long was this sync issue becoming noticeable etc)? Then we can do some testing to see if we can track this down.

Thanks

Joris

[Fordster]

Hey Joris, thanks for the reply. Machine is a Dell Inspiron 1720 Centrino (256Mb dedicated G Ram - Taken to 1024Mb using shared memory, 4Gb RAM, T7250 processor, Samsung SSD for OS and video files). O/S is Windows 7 Pro

No audio was playing at all - I was VJing for a DJ, so I was using the tap tempo button to sync to his set. The tempo was staying bang-on with the music, but each loop that was set to tempo sync was way out (too slow - i.e. if loop length was set to 1 bar, it may only get through 3 beats by the time the metronome had counted 1 bar)

I use many effects in my set, all set to bypass, with the composition keymap set to un-bypass them. I just tap the keyboard to trigger the effects, and only ever use one or two at a time.

The viseo clips were all source footage from the Resolume site.

As to when it started to happen, well that varied. Sometimes it was as soon as the program was started (after a full reset of the laptop), and sometimes it was after half an hour.

The laptop, and my entire stock of video clips work well with Arkaos Grand VJ and Resolume 3.1.1. I've not tried 3.1.2, but went straight to 3.1.3. when I purchased the license.

Thanks in advance for any help you can give me.

[Joris]

Hey Fordster

Thanks for the info! We're looking into this...

Stay tuned!

Joris

[Tim Walther]

Hi,

I've been trying to reproduce your bug in order to fix it, but I haven't had any succes.. So, here are some questions.

If understand correctly, EVERTHING that is synced to bpm runs slower than the main tempo.
Could you say that there is moment that it start's to go wrong, or is it just drifting out from the start?

How many clips are playing simultanously? Does playing more clips together have any effect on the rate the tempo "drifts"? What's the resolution of the clips? What does the Avenue's cpu usage (in windows task manager) look like?

If you try to add an audio clip to the composition and keep it running for as long you're busy, does the audio play smoothly at all times, or does it hiccup and glitch from time to time?
If it does, try increasing the audio buffer size in the audio preferences and see if it will play smootly / stay in sync.

[Fordster]

Hi Tim, thanks for your reply.

>> If understand correctly, EVERTHING that is synced to bpm runs slower than the main tempo.

That's correct!

>> Could you say that there is moment that it start's to go wrong, or is it just drifting out from the start?

It's intermittent - The only thing that is consistent is that it will happen in every performance. Sometimes it runs fine for a while, then for no reason it starts to lag. Other times it does it from the start (even after a fresh re-boot). I've tested with the same clips in the same set-up for continuity.

It will do it with only one clip playing, but more clips will force further delays. Resolution is 640x480. CPU usage is sitting between 30-50%. Framerate showing as >50fps.

A simple test I do is a "1 bar" .mov with the numbers 1, 2, 3 and 4 in it. When set to BPM sync, the mov and the tempo are perfectly synched. After anywhere between 10 and 30 bars, the numbers are lagging behind the bar count, and the lag gets bigger as time goes on. Hitting re-sync will pull it back in, but I don't want to do this every 10 bars.

Any clip I trigger is triggered in time with the tempo, so it will be "out" relative to any current layer

I'm not using any audio in my compositions, but when I use the demo resolume A/V set, the audio and video stay perfectly in time, but will drift out relative to the tempo. Audio is my "main" job ) and my soundcard is very well specced. Average latency is <4ms, 24bit 96kHz with no glitches in Avenue, Ableton or Cubase...

Thanks again for your help.

[Fordster]

So running 3.1.1 I cannot reproduce any of the delays no matter how many layers of movies I have! It stays perfectly in sync.

Though I miss the additional features of 3.1.3, the stable tempo sync is more important so I'm happy to stay on 3.1.1 until someone in the know can work out what's happening

[rxfromparis]

Ok it seems i have the same problem : to check it out i made a 4 sec movie with numbers going from 1 to 4 at each 1 sec each (25images). So i put this clip in avenue, fire up the beatsync, set it to 4 bars and start the clip at 120 bpm. Starts good, but really fast it starts to fall out of sync. I made a small clip on dailymotion so you can see for yourself,

http://www.dailymotion.com/video/xbypzr ... nepak_tech

if you put it in virtualdub and go image by image, you can see that the beatsync clip isn't following the internal clock. Dont have a 3.1.1 around to see if it worked then

you can download the bpm count movie here
http://www.mediafire.com/?sharekey=46d7 ... 77b478cd6c

hope this helps

edit : tested in both Seven 32 abd 64 bit versions

[Joris]

Hey guys

Thanks for the help and info.

Just wanted to let you know that at the moment Tim is very busy tapping away rhythms, trying hard to track down this issue.

[rxfromparis]

Ok, no problemo