audio tracks not in sync

joejon wrote on 1/14/2015, 7:08 PM

The default setting for sample rate is 48k Hz and 16 bit which is fine for video. But my son is doing just audio recording from a keyboard and electric drum set. Should he switch the sample rate to 44k Hz or doesn't it matter? Also, when he listens to a track and then records a second track they are out of sync like there is a delay. Is there a setting that he needs to look at or how does he fix this?

Comments

Chienworks wrote on 1/14/2015, 10:09 PM

The sample rate doesn't matter. As long as it's accurately recorded in the file header Vegas will resample them on the fly to the project rate.

There are latency settings that can be adjusted. You should probably use ASIO drivers instead of the sound card manufacturer's drivers to get the lowest latency possible. Still, no matter how close you get it there will probably be some delay since the digital sound pathway can never be instantaneous. You may end up simply shifting the new track back a hair to line it up each time.

joejon wrote on 1/15/2015, 9:56 AM

Thanks for the reply. He plugs his keyboard or drum set into a M-Audio Plus usb interface and is using those drivers. I guess he will just have to move the tracks.
This is a stupid question but what do you mean by project rate and being recorded in the file header? Is that a setting in one of the menus that we need to set?

musicvid10 wrote on 1/15/2015, 10:45 AM

You are experiencing latency.
Chienworks is correct about minimizing audio latency.
MIDI instrument latency through an M-Audio is not something you can address.
Just slip the track in post. Audio tracks can be moved with snapping off.

Chienworks wrote on 1/15/2015, 11:52 AM

[i]"Is that a setting in one of the menus that we need to set?"[\i]

Sorry, that was probably a completely unnecessary bit of tech to inject into the conversation. If the M-Audio system is recording the keyboard & drum at 44.1K, and Vegas sees it as 44.1K, then all is well. If it wasn't working then you'd be hearing his parts play back substantially faster and higher pitch. Occasionally we se a report about some sub-standard audio recording done at 44.1K but marked as 48K in the file header. Since this isn't the case, don't worry about it.

joejon wrote on 1/22/2015, 4:10 PM

Thanks for the information. One additional question. I see if preferences that the audio device track buffer is set to .14, would it be beneficial to increase that? And what would be a recommended amount?