Kamilion
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Waveform getting cutoff?
I can't figure out why the first beat of the track I record gets cutoff. During recording it records the waveform that I want from the start of the sound, but when I stop recording and press play for playback then it moves the waveform backwards to the beginning of the clip, cutting off the initial peak or attack. In other words, it cuts off about 1 second of the sound. Why is it doing this and how do I get it to playback what I record? Is it a setting? Snap or nudge settings doesn't make a difference.
If anyone knows how I can attach a file let me know so I can give a visual, but I don't see that option anywhere.
Kamilion 
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John
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Re: Waveform getting cutoff?
2014/10/28 21:08:58
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I never heard of this before but see if automatic delay compensation is causing this issue.
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scook
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Re: Waveform getting cutoff?
2014/10/28 21:11:05
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To attach an image, upload the file to a server somewhere and post the link to the image.
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The Maillard Reaction
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Re: Waveform getting cutoff?
2014/10/28 21:12:50
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That seems like it might be a latency issue or a Delay Compensation issue.
Have you compared your real life latency to that which is reported in SONAR?
What size sample buffer are you using?
Do you have any effects in your project that use look ahead functions or have some other feature that increases latency?
Those are the kind of questions you'll want to consider.
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 21:20:36
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Where is the automatic delay compensation? My "buffers in playback queue" is set to 4 and buffer size is 240 ms
Kamilion
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 21:24:47
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I hear what you're saying Mike, but latency and SONAR cutting off the waveform seems like to different issues. The track plays back fine with no delays it just cuts off the initial attack. For instance, when I tried to record the kick it only plays back the sustain part of the kick and not the attack
Kamilion
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 21:25:05
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Kamilion
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John
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Re: Waveform getting cutoff?
2014/10/28 21:39:43
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Look for the PDC button in the Control bar.
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 21:42:54
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Ok, here is a visual. The left clip is a screenshot during actual recording and the clip on the right is what it turns into after I've pressed stop. As you can see that the peak is cutoff on the right, but on the left you can see that it initially recorded it. 
Kamilion
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 21:45:31
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Kamilion
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The Maillard Reaction
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Re: Waveform getting cutoff?
2014/10/28 21:48:14
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Kamilion
I hear what you're saying Mike, but latency and SONAR cutting off the waveform seems like to different issues. The track plays back fine with no delays it just cuts off the initial attack. For instance, when I tried to record the kick it only plays back the sustain part of the kick and not the attack
Heck, I'm just throwing out a guess... there are a lot of things I'd want to know before I could figure it out with certainty, but the premise of my suggestion is based on the idea that what you hear when you are recording alongside already recorded material is synced by compensating for the playback delay... then when you hit stop the freshly recorded clip is synced again to the other tracks... and this is done by sliding along the timeline to an earlier position so that the next time you hit play all the tracks in the project that are recorded play in sync. The waveform drawing that is made during recording is an approximation, so to speak, and when you hit stop it is redrawn in it's synced position. This is why I suspect it has something to do with the latency compensation, or perhaps your latency settings. Good luck.
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 21:59:08
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I hear you Mike, it is all a part of troubleshooting :-)
John, the PDC button isn't clicked.
Click on the youtube link above, if possible
Kamilion
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The Maillard Reaction
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Re: Waveform getting cutoff?
2014/10/28 22:05:14
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 22:13:17
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I did try it, it didn't make a difference with it on nor off..it still does the same thing
Kamilion
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The Maillard Reaction
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Re: Waveform getting cutoff?
2014/10/28 22:14:31
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Kamilion
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Re: Waveform getting cutoff?
2014/10/28 22:32:46
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Hey Mike, I appreciate your time on this. Those are my exact settings in your link
Kamilion
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Sanderxpander
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Re: Waveform getting cutoff?
2014/10/29 05:21:48
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It seems too much of a coincidence that you have four buffers at 240ms and are losing "about a second". Does anything change if you change those settings?
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The Maillard Reaction
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Re: Waveform getting cutoff?
2014/10/29 08:47:45
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Kamilion
Hey Mike, I appreciate your time on this. Those are my exact settings in your link
I am suggesting that after you read the section on Record Latency Adjustment (samples) That you run the loop test they describe and see if "0" is the best choice for you. If it is not there may be a couple reasons why... on my system the reason is that the Hardware simply doesn't report the total latency so I have to make a supplementary manual adjustment to make it all work well. You may find that there is another reason, and you may or may not have to adjust it manually or you may or may not be able to solve the reason your sync isn't synced. You'll just have to see what's going on, and the loop test is a good first step. Which brings me back too: What Effects are in your project? What happens if you remove any and all effects and try to test the sync? If the results are different when you use effects and when you don't you can learn when and why some effects mess with latency sync. Good luck. Finally, are you running WDM, MME, or ASIO audio drivers?
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The Maillard Reaction
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Re: Waveform getting cutoff?
2014/10/30 08:15:42
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