Avid Pro Audio Community

mgmartino · #1 09-28-2017, 10:10 PM

So when I use MTC to place Logic Pro X to Pro Tools I notice a lag. especially if I am working on drum stuff where it is some obvious. Noticed If you make sure the buffer sizes match that it works a little better but even if the first kick drum hit is on it seems to lag buy the 3rd.

Any suggestion on how to stop this. I tried sending the audio from logic into ProTools using aggregate device. And It just made the delay way worse so forget that idea lol

john1192 · #2 09-29-2017, 08:16 AM

Quote:

Originally Posted by mgmartino

So when I use MTC to place Logic Pro X to Pro Tools I notice a lag. especially if I am working on drum stuff where it is some obvious. Noticed If you make sure the buffer sizes match that it works a little better but even if the first kick drum hit is on it seems to lag buy the 3rd.

Any suggestion on how to stop this. I tried sending the audio from logic into ProTools using aggregate device. And It just made the delay way worse so forget that idea lol

sample rates, buffer sizes, TC rates all the same ?? right !!

what interface ?? more than one audio interface ??

how are you clocking your interface ??

more info please

mgmartino · #3 10-02-2017, 10:58 PM

- Sample rates all 44.1
- I tried all buffer sizes (the same for LPX and PT)
- TC rates both 25

-I am using a Universal Audio Apollo twin Duo as my interface
Its sample rate is 44.1 as well

john1192 · #4 10-03-2017, 07:37 AM

Quote:

Originally Posted by mgmartino

- Sample rates all 44.1
- I tried all buffer sizes (the same for LPX and PT)
- TC rates both 25

-I am using a Universal Audio Apollo twin Duo as my interface
Its sample rate is 44.1 as well

i assume you are using the IAC bus to send TC ?? if not, how are you doing this ..

are you also sending Machine Control ??

need to go through all your settings .. you are getting the start but not the continuing sync

can you share more info .. please

mgmartino · #5 10-07-2017, 05:27 AM

Yes I am using the IAC bus.

What is Machine Control?

Extreme Mixing · #6 10-08-2017, 01:29 PM

SMPTE and MTC were never sample locked. Ever. At least not in the 30 years that I've been paying attention. I actually think it's better for timing to render the tracks in Logic and then import the audio into Pro Tools to mix. If you need the audio from Pro Tools to program, then Bounce it and use that audio file in Logic.

Steve