Recording: offset(?)

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jsoh

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In the multitrack mode, I insert a beat loop (wave block) and duplicate it several times, then I record bass guitar. Once I stop recording, however, the recorded track seems to offset itself a bit, so it is no longer in synch with the other wav blocks.

I think it has to do with the wav or loop properties; for the beat loop, I disabled looping, but it doesn't seem to have solved the problem. In the beat loop Wave properties\Loop Info: I select one shot, fixed length (no stretching). Still hasn't solved the problem. I think I had this fixed for a bit, but once I started a new session the problem came back, and I don't remember exactly what I did last time, though I do think I messed with the wave/loop properties. Any ideas?
 
sounds to me that your problem isn't with the loop tracks, but with the track you've recorded. it sounds like you have a latency problem. so, when you're recording and playing the bass in time with loop-playback, it sounds fine, but in the meantime, your computer is processing and recording it slightly behind (because it can't really cope). i had this problem once, and solved it by manually shifting all the tracks around 500 milliseconds back, and they were in sync again. what a shlep, but at the time it was all i could do.

what system are you running?
 
Paging Ozpeter....

I believe there is a function which allows you to distinguish the time discrepancy due to latency, and CEP will auto-correct based on this number. You need to view the timestamp of the track with the latency issue, and subtract it from the timestamp of your imported loop to find out by how much you need to offset the latency correction in the device properties.

Am I right Oz?
 
Off the top of my head, which here in Australia should be on its night-time pillow, there's some good stuff in the help file on "latency" if you use the search facility there.
 
Latency

To determine the latency in your setup, record something with a sharp attack (a drum machine handclap works fine) in Multitrack View, then play it back while recording into the next track. You will be able to see the offset between the first track and the second: this is the latency. Using the scale below the waveform display, calculate the time difference in milliseconds...in other words, subtract the time where the point of the peak on the first waveform hits from the time where the point of the peak of the second waveform hits. Transfer that number to Options/Device Properties/Wave In: there's a window where you enter the latency in milliseconds. Then repeat the experiment until you nail it and the peaks line up.
 
I think this is the exact problem I'm having. If it's not too much trouble, can anyone tell me how to record playback? I'm currently using a mic but I think direct recording of the playback would yield more accurate results. Thanks.
 
not sure what you mean there jsoh... do you want to RE-record what you've already got everytime you lay a new track down? i guess that might solve your problem, but i'm not sure that it's going to sound any good, and then you can't mix anything post-record, which is a no-good place to be! you'd have to run a line out of your machine and back into your machine unless your soundcard (like mine) has got "re-wiring" software which allows you to take sounds from anywhere and directly send them anywhere else INTERNALLY.

i think you'd be best off working out the latency and shifting the sound back into sync. or upgrading your machine.
 
What I meant was, I have a wav block in multitrack view, and I'd like to record it as it plays (in multitrack view) so I can really accurately determine the latency.
 
jsoh, you'll need to run a cable from your line out on the soundcard to the line in on the same recording sound card to do this. Unless you're running 2 seperate soundcards through a mixer like me, then all you have to do is direct the signal back to the soundcard by pushing a button. :D
 
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