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Subject:Tempo Glitch Problem
Posted by: buddy
Date:4/10/2003 5:58:23 AM

Having recently installed and began using Acid-Pro 3.0, I find that there is an occasional glitch in tempo which throws the acoustic guitar track completely out of synch with the vocals and drum tracks. This is what we have been doing:
1. Take a drum track from drum tools at the required tempo.
2. Recording a guide vocal and acoustic guitar track to that tempo.
3. Recording a live drum track while the drummer listens to tracks 1 and 2 on headphones.
4. Deleting tracks 1 and 2 so that we have a live drum track in perfect tempo.
5. Recording an acoustic guitar track while listening to the live drum track.
6. Recording a live vocal track while listening to live drum and acoustic tracks.

At this stage, on playback, the acoustic guitar track is out of synch with the other tracks and on some bars of the drum track there is a drag or a slight delay almost like a fifth beat in a 4-beat bar. Can anyone suggest a solution to this problem?

Subject:RE: Tempo Glitch Problem
Reply by: Iacobus
Date:4/10/2003 1:23:58 PM

There could many causes to this problem.

Anything running in the background while ACID is running? Does your soundcard have an IRQ all its own? (Sharing resources can hamper performance.)

Did you try updating your soundcard's drivers, if possible? Video card drivers? (Try reducing video acceleration too.)

Go to the Audio tab under Options>Preferences and manually adjust recording latency to see if that helps.

Overall performance of your soundcard/audio interface (and its drivers) really does matter. A plain-vanilla Sound Blaster or compatible can't hold a candle to pro-level offerings from Echo, M-Audio, MOTU, et al.

What kind of tracks are these in your project? ACID is not a true multitracker in the strictest sense of the term. (That's a job belonging to Vegas.) You can probably playback about 4 or 5 disk-based tracks in your project, maybe more depending on the config of your system. It doesn't sound like that could be your problem but it's worth covering.

HTH,
Iacobus

Subject:RE: Tempo Glitch Problem
Reply by: buddy
Date:4/11/2003 12:55:02 PM

Thanks, maybe you are right. Should I invest in Vegas for recording real instruments and voices?

Subject:RE: Tempo Glitch Problem
Reply by: Iacobus
Date:4/12/2003 3:49:44 PM

If you want to record and playback multiple disk-based tracks at once (thereby implementing true multitracking), then Vegas should be considered. Even better is if you have both, as Vegas and ACID Pro have features that complement each other.

A fast, 7200 RPM hard drive would definitely help out too. (I believe Vegas actually requires such a drive.)

HTH,
Iacobus

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