Syncing Logic and DP

I am trying to get logic to trigger Digital Performer using 2 seperate computers. The reason for this is that I need to use Atmosphere on a project and Atmosphere drivers are not Intel ready yet. I am running logic into a MOTU traveller - and taking the midi out of that into the midi in of a MOTU fastlane which is plugged into the second computer where DP resides. DP does start running when triggered, however the clocks are about 1/4 beat off, and DP starts at bar 1900 instead of bar 1. I am using MTC as the trigger- Help!

Ok thanks.
I got it to sync up now but something is weird. It seems to drift off every so slightly.
I heard it may have to do with the frame rate being set to 30.
Is this correct? Where do I change that?
Thanks much.
Josh

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Syncing Logic and multitrack tape using smpte/mtc

Hi,
Has anyone managed to sync Logic to multitrack tape using smpte/mtc without major drift ? If you've tried this, let me know your experience.
Many thanks.

Never had a problem with wow and flutter - but I guess it depends on how good the tape machine is. I use a Studer A827, so it's not been an issue for me. I just use striped tape, usually at 15 ips, to record the basic tracks, and transfer a reference mix to PT and/or Logic, and transfer those files to Logic and carry on with overdubs, and only use the 24 track tapes again when it's time to mix. I'm not doing anything complex like sound to picture, or chasing the tape in the rest of the recording, so there may be issues lurking which I don't encounter.

Logic and Pro Tools

Hello all. I"ve got a few questions concerning Logic and Pro Tools. First, can you trigger Logic's sounds in Pro tools? ie Logic as the "slave" and Pro Tools as the "master" And can you record vocals into Logic using an MBox 2 or is there some other interface I need? If so, what would you suggest?
Thanks in advance for your time

You can use an Mbox2 with logic. If you already have pro tools, or plan on having it in addition to logic, thats what I would do, as both programs can use the mbox2. Although, they can't both use it at the same time. Which leads to this.
It is possible to have pro tools running using the mbox2 while logic is running, using your computers soundcard. I have done this, but I have found no real way to synch them. I've been looking at ways of syncing Logic and Pro Tools together on the same computer, and it seems to be not really doable, although I believe people have done it. A lot of people have one computer for Logic and one for Pro Tools and sync them together with time code, which works really well.
I'm really pretty new to logic, so I'm sure I dont have the best answers,
Good Luck!

Syncing issues with Logic and Akai MPC 1000

I followed the directions in the manual and even some advice on another forum related to MPC's, but I still keep having problems whether I sync as Logic being Master or Slave.
When I sync Logic as Master the Tracks are kept in time with each other but they are not syncing to the grid in Logic right. It's a little off even though I set a few blank bars at the beginning of the sequence I wanted to record, and set the the tempo in Logic to the exact same tempo on the MPC. When I go to copy and paste certain bars while arranging it's always off cause the tracks are not in time with the bars in the arrange window. I want the tracks to be in time with the grid so it is much easier to copy, paste and arrange.
When I try to sync Logic as Slave...I can't even get it to work at all. The transport location just seems to jog in place. The last digits in the transport just keeps repeating themselves but no others, and there is no movement of the play head. It's just stuck. I don't know why it's doing that. When I try to sync Logic as slave I make sure the MPC is NOT in slave mode whatsoever, and that Logic isn't sending (as far as I know) any Master info to the MPC, so I really don't understand why it locks up.
I'd really appreciate help in getting this sorted out as soon as possible.
Message was edited by: excLOUsiv

Ok, so I checked the SMPTE offset. I switched it so it will start at 00:00:00:00 or what have you. Good news is that the play head is no longer stuck. The first time I tried this I got an error message saying "System Overload. The Audio Engine was not able to process all required data in time. (-10011)" after about 8-10 bars of recording.
Next time I tried this I did I stereo pass of one track and it worked perfect. It recorded the whole sequence and the sync was perfect. It was only that one time. Now I can't even get the empty initial bars to go through without getting that error.
What is happening with this? I should have a powerful enough computer. I have a 2.2 ghz Intel core 2 duo Macbook pro, 2 gigs of ram, os 10.4.11

Questions and answers on DLM, sync speed and real ...

I was confused about some DML details and posted on a BE forum (https://avatar.bethere.co.uk/forum/viewtopic.php?t=43542) and got what was to me an incredibly helpful response from Tom (drsox). I thought it would be of interest to some readers here so copy it below. Once again, many thanks Tom.
1) FTTC DLM applies only between the cabinet and the modem?
>> Yes, as there isn't any broadband / data signal going anywhere further down the line to the exchange if you are on FTTC!
2) What are the different parameters that apply on this hop? I know there is a current sync speed, a current snr, a target snr and an ip profile. Anything else?
>> The IP profile isn't really related to DLM, it just "follows" your sync rate. In the past the IP profile would take up to 3 days to "follow upwards", leaving you with a high sync and awful speeds! This has been changed now on 21cn and "RE-ppp"ing (rebooting the router) would force the IP Profile to update instantly.
DLM changes the SNR target. So where BE have hard coded / set SNR targets such as 3db, 6db, 9db, 12db etc.. They only change upon user request. BT use their DLM system where line instability or line error counts are collected and analysed, the SNR target and interleaving settings are then modified in increments to try and stabilise the line.
This image shows quite well how, over a 6 day period, BTs DLM noticed that my line fault was fixed. I didn't get the full speed back for a week.
3) Is the ip profile the same as the BRAS profile?
>>Yes
4) The DLM keeps statistics of errors etc to dynamically change the ip profile?
>> Changes the SNR target and interleaving for the line which will reduce the speed, and therefor the IP profile.
5) There is a general theory that the DLM is incapable of telling the difference between an error and a modem power cycle, so that power cycling can cause your profile to lower. Is that correct?
>> Yes, if you resync / power cycle your router multiple times in a day it is likely to try and "combat the line errors" and reduce your sync rate by increasing the SNR and / or interleaving on the line.
6) Can other connections and disconnections have the same effect? For example, if I reboot the router (where this is separate from the modem)? Or use the router interface to disconnect/reconnect the broadband?
>> PPP drops (router reboots while leaving the BT Openreach VDSL modem on and connected) won't affect DLM. The IP profile will match your sync rate upon reconnection of the PPP session.
7) If you have a low ip profile, does this mean that the sync is limited to the ip profile?
>> Other way around, if you have a low sync rate then the IP profile will match the sync rate. If you get an awful sync rate and the IP profile follows downwards, then you resync higher but the router "keeps the PPP session open" (which is possible if you resync quick enough) then your IP profile will stay low, even though the sync is high. Until you reboot your router or disconnect and reconnect the PPP session.
8) Can the sync rate change dynamically without a reconnection? If the ip profile gradually rises, will the cabinet force a resync to make sure the customer is actually getting the benefit of the higher ip profile, or must the user intervene with a modem resync?
>> See above - Sync can rise without affecting the IP Profile and the cabinet does not force a RE-PPP.
8) As I understand it, if the ip profile gets stupidly low for some reason, it can only be reset by BT wholesale? This will only be done after a visit to your home and a telephone call from the engineer to the BT wholesale central admin?
>> Mixed reports plus I don't think people understand the difference between sync speeds, line faults, the delay in DLM increasing sync after a fault.. I expect half the reports on the BT forum are not related to a stuck BRAS / IP profile. It is possible for the ISP or a BT engineer to reset the IP profile and possibly DLM training.
9) (8) This applies to all ISPs using BT Wholesale: some may be more willing to force this process to happen on behalf of their customers, but none can cirumvent it?
>> GEA providers (I believe) still have DLM but don't have BRAS / IP profiles unless they implement their own.
10) Who sets the snr? As I understand it, the customer has no direct control. Is this different for different ISPs?
>> Mixed information again, I believe that BT Wholesale give providers DLM override controls and SNR settings but none? (or few) ISPs use this system.
11) Real download/upload speeds are physically limited by the sync rate. They are also naturally limited by local limitations (such as wireless connections), server limitations, and congestion at various points along the route? Any more? The congestion along the route will vary bewteen ISPs as they use different routes with different capabilitues.
>> It is possible for BTs regional or local cabinet network to become congested. Supposedly the minimum speed you should achieve over the BT part of the network is 15mbps. ISPs such as Plusnet, BT etc.. then layer their own "discriminatory" traffic management on top of that (ie, slow down torrents etc.).
12) Real speeds are 'unnaturally' limited by throttling. This will also vary from ISP to ISP. Sky claims to have none, and BT none except for p2p. PlusNet and John Lewis have significant (but well explained)throttling. All the more expensive operators have none.
>> What you said
13) The ip profile affects the sync rate, and therefore actual speeds. Does the ip profile effect actual speeds in any other way?
>> Not quite right. The IP profile directly affects the speeds you can achieve but the sync rate affects the IP profile. The sync rate is determined by the stability and quality of your line and what DLM thinks it can cope with.
14) Many people (including AndrueC above) report real speeds from speedtests that are consistent and not close to the ip profile. These can't be explained by congestion (that would make them inconsistent). They can't be explained by server limitations, as they are consistent accross servers and the same servers give better speeds to other people. They can't be explained by local limitations, too many people claim sudden drops where the local conditions have not changed. They should not be able to be explained by throttling, as they as seen for many ISPs who do not throttle (I don't hold with the ISP lying theory here). What other factors are there that can explain these cases?
>> AndrueC and some other Sky customers have strange symptoms where speeds are around 20mbps rather than the full sync speed. The only logical explanation is either local cabinet congestion, contention between BT and the provider's network (not enough investment by the provider) or artificial traffic management on the providers side. It is also possible that the router that the customer has attached to their line is unsuitable for the higher speeds. For example an old ethernet router may only be able to cope with 20 or 30mbps! A friend of mine has a TP-Link ethernet router running Tomato on a BT 80mbps service but the TP-Link's CPU limitation causes his service to only perform at around 68mbps; he has a replacement router on order. (Obviously wifi will significantly reduce performance).
15) If you get a stupidly low ip profile, how long can you except it to take before it climbs to something more reasonable? (eg in my particular case, my profile is currently around 15Mb, and from BT service line tests should be around 58Mb). And the classic question, is it best to power cycle the modem (1) never, (2) occasionally (how often) or (3) never if at all possible? Mine did jump from 3.5Mb to 15Mb on one power cycle. Was that just coincidence?
>> My FTTC line took about 6 to 7 days to go from 40mbps to 80mbps after a line fault. It is possible that your 3.5mbps to 15mbps increase was the "re-ppp" affecting the BRAS profile and that your sync had slowly been increasing over time.

what a waste of money sending an engineer to "fix a fault" which does not exist. Precisely.
In my original BE post to which Tom so helpfully responded, I began: It seems to me that DLM is an excellent concept with a highly flawed implementation, both technically and administratively. I think that sending out an engineer to fix an obviously flawed profile is the main example of an adminastrative flaw. I understand (I can't remember source, maybe Tom again) that they are sometimes relaxing the requirement for a visit before reset.
Maybe the DLM system is too keen on stability vs speed. This will keep complaints down from many people: most users won't notice speed too much as long as it is reasonable, but will be upset if their Skype calls and browsing are being interrupted too often.
However, it does lead to complaints from people who notice the drops after an incidence (as in your thread that has drawn lots of interest), or who only get 50 instead of 60. The main technical flaw is that DLM can so easily be confused by drops from loss of power, too much modem recycling, etc, and then takes so long to recover.

Pop up saying error while trying to sync audi and midi

HELP! is there anyone who is experiencing or has experienced an error pop up saying error while trying to sync audio and midi in your logic pro8? it's doing it on every song I pull up now. I've tried buffering, reloading, Help? all was fine the night before.
Sincere, The Silver Conductor

Check the clock source on your audio interface if you're using one. It should be set to internal. What's your setup?

Trouble syncing logic pro 9 to my vs2480

Hi I am trying to sync Logic Pro 9 to my Roland VS2480 using MTC so I can control the transport section using the buttons on my VSA2480, When I press play on my VS2480 the play button on logic lights up ok but logic seems to be stuck in a in a small loop starting at -8.1.1.1. with only the last 1 digit moveing it gets to around -8.1.1.48 then reverts to -8.1.1.1. .If i then reset logic to bar 1 and press play again on my VS2480 Logic jumps back to position -8.1.1.1. and gets stuck in this loop again ,I have tried every thing I can think of to get round this but nothing seems to fix this ,I can get Cubase to sync ok wit MTC and Reason with midi clock Reason ,so I know my midi cables are fine.I have also tried using MMC but to no avail.Has anyone else had a simular problem and I can not find an email address to ask Logic Pro support .
Maybe the answer is simple and I am not seeing it ,but any help would be welcome
Thanks Kevin

Hi,
it seems that the VS2480 is starting at a different SMPTE/MTC time than Logic Pro.
It should work if you would adjust the SMPTE/MTC offset for Logic Pro accordingly.
Another solution (because Logic acts better as a SMPTE/MTC master than a slave):
Sync the VS as a slave to MTC (Logic MTC mster) and engage MMC for VS to be able to
control Logic's transport controls via VS control buttons.
Best,
21

Syncing Logic to ADATS via MOTU 896HD

Greetings, I'm trying to load ADAT multi tracks into Logic Pro 8 via my MOTU 896HD. I've got the light pipe and ADAT sync cables connected and I'm getting eight tracks of audio at a time. No problem. My problem is syncing the next set of eight tracks with the first eight tracks. The only options I see in Logic for syncing is via MIDI. The 896 hasn't any MIDI at all. Yet my MOTU control panel gives me the ADAT Optical clock source, or the ADAT 9-pin options. I am unable to find those options in Logic. How can I slave Logic to my ADATS so I can load my ADATS in sync.?

If it's anything like the way the 896HD works with SMPTE, then Logic won't sync to it, as in when you press play on the ADAT Logic won't do anything. MOTU software will. You should still Sync to the ADAT optical, that will sync the clocks and stop things glitching and falling out of time.
What I suggest you do to keep the sets of 8 channels sync'd is what I'd normally do. It causes things to take a TINY bit longer but is fool proof.
1. Record channels 1-8
2. Record channels 1, and 9-15
3. Record channels 1, and 16+
4. Group your first 8 channels together in Logic, and the second set of 8 channels together, and the last 2 channels together.
5. Use your 3 channel 1's to sync the 3 groups, this can be done with sample accuracy so although it's a little more work it's as good as using ADAT sync. It really doesn't take long.
Good luck, let us know how you get on.
Alternatively use AudioDesk which comes with your MOTU as that SHOULD work with ADAT sync.

Help with "Error syncing Audio and Midi" message. How to fix?

Hi,
I'm running Logic Pro 7.1 on a G5 Dual 2.5 PowerMac. My audio interface is a Digidisign Digi002R, and my MIDI interface is a MOTU Fastlane. Up until a few days ago everything was working fine. I didn't install any new software or anything.
All of a sudden in any Logic session I open (new or saved) I get all kinds of artifacts that sound like they're associated with sample rate problems.
True to form, on playback after 4 or 5 seconds a message comes up telling me that there is an error syncing audio and midi. It tells me that a sample rate of 88209, or 88213, or 88207 (each time it's different) was detected, and that there is a conflict between Logic and my external device.
My Digi002R is set to 44.1, and Logic is set to 44.1 as well. I have no idea where this problem came from.
The only thing I do know is that I've been using the Peachtree Press Apple Pro Training Series to study for my Level 1 Logic certification. it comes with a CD with Logic sessions to use with the text. The CD comes with a Logic Epress Demo but I didn't download that as I've already got Logic Pro. I dragged those session files to my desktop, and the problem occured for the first time when iopened up that first session from the CD. After that, every single session has this problem and I have no idea how to fix it.
Sorry for the incredibly long message, but can anybody help?
Thanks
PowerBook G4 15", PowerMac G5 Dual 2.5 Mac OS X (10.4.7)

Hey,
Thanks. I appreciate the help, but I've tried all of that. I just don't get it. I've unplugged everything, I've shut down, powered down, relaunched everything a dozen times and the problem doesn't go away. I know that the problem is with Logic because the interface works perfectly fnie with everything else, from Pro Tools to iTunes.
I'm having Logic Pro 7.2 shipped to me so I'm hoping that installing that will reset everything, but until then I can't do anything in Logic.
Anybody ever encounter anything like this?

File plays fine, then I get "Error Syncing Audio and Midi"

Hi, I just installed my upgrade to Logic 9 from 8. When I play a file , it goes fine at first, then if I save it, a crackling sound takes over and I get a message like "Error syncing Audio and Midi". Saving the file is not the only thing that will cause this to occur but I can't pinpoint exactly what and when these other times happen.
I did some troubleshooting with an Apple Rep by phone the other day and it seemed we had it figured out that the problem was about bringing projects over from Logic 8 and opening them in Logic 9. The suggested solution was to export audio tracks from 8 and import them into 9 as a fresh project.
It then seemed that when I started a project from scratch in Logic 9, I had no problems. This no longer seems to hold water as a theory. The problem I'm having now is with a project I started fresh in Logic 9.
When the crackling sound starts, the play speed seems to slow down as if I were playing an old 78 on the wrong speed or something.
Also I can't bounce to make an Mp3 in Real time - that causes this crackling sound/speed issue to occur as well. When I try to bounce an Mp3 offline, it re-hashes the first Mp3 I did and I don't hear my changes even as I choose to replace the file. This is screwy,...really.
I appreciate any assistance or ideas on this.
Thanks, Frank B.

I was getting the same issue last night with a stereo track and one instance of Addictive Drums with just tom fills and a few crash cymbals in the sequence. I thought it might be a AD issue because I assigned a multi instrument to AD which is not necessary but I forgot that. I deleted the multi instrument and this seems like it solved it for me. I just ran the track and no Midi Audio sync errors or the crackling sound. Do you have any multi instruments in your setup?

Error Trying to Sync Audio and MIDI - Please Help!

Hey everyone, I know this is a fairly common problem, and I've tried following the Logic Help and manual, but it hasn't solved it.
Last night, I was recording and mixing with my MOTU 828mkII into my Powerbook G4 running Logic Pro 6.4, and everything was working perfectly. Today, when I opened up Logic again to work on mixing the song I recorded last night, after not having changed a single preference anywhere, something bizarre happened. When I clicked the play button, the song began playing, but no sound came out, except for a high-pitched digital howling sound, and after about 5 seconds, an error message came up saying, "Error Trying to Sync Audio and MIDI." I tried other song files I'd recorded months ago, and even with brand new song files, and the same exact problem occurred!
Apparently, it's a discrepancy in the sample rates between my MOTU and Logic? But both have been set to 44.1 for months, and I haven't changed anything. The Logic Help said to change the Sync Mode to MTC Continuous (which I believe it was already set to) or MTC Trigger/ASD (which didn't help).
I even tried re-installing Logic altogether, and changing the sample rates both on my MOTU and Logic to 48 and then back to 44.1, and nothing works.
Please help me! What should I do?
Thanks very much,
TB

I suffered from this problem, and it was particularly frustrating to me since I was not even using MIDI, or so I thought. The "Error Trying to Sync Audio and MIDI" message seemed to crop up just as I was ready to print a final mix.
I did some research and learned that the Logic automation is actually MIDI data, furthermore, I learned that The sample accurate automation feature in Logic Audio results in randomly sized audio buffers being passed to plug-ins.
My solution?
Turn OFF "sample accurate automation" in the menu Logic Pro / Preferences / Audio...
The automation is very accurate even with this option disabled.

OK, What's Wrong Here--Logic and Reason

OK, before anyone goes off on me about this post, I have searched the topics in this forum and followed all the advice for hooking up Rewire applications (and the manual is absolutely useless on this, I might add). However, after creating two separate audio objects in the Environment (L and R Rewire channels) and assigning them to their own Bus, (see below)I still can't here any sound. I get to see the faders gleefully bouncing up and down as if they're saying "You can't hear me, You Can't hear me". Is there something in Logic 7.1 that's not covered in these posts about Rewiring or have I just missed something? Here's what I've done which I got from another post on this topic:
Environment Window
In the Middle section of the parameters on the Left select Create
Name it Rewire
Under that windows "New" pull down (Top Left), pull down to Audio Object
In the "Channel" pop up (Left, bottom section) select>Rewire (Left, right, 3,4... What ever you want.
Double Click the Audio Object to expand it
Pan Left or right, or whatever you need.
Rename if you wish
Do the same for the other stereo side. Now's the fun part. Assign these stereo pairs to a bus (above the fader, the default is "Out 1-2")
Go to the Mixer window
Double click the Bus you assigned, this puts it in the arrange window
Arrange window
Name the Bus "Rewire" or "ReDrum" or something great like that.
Been there. done that but still no sound. Thanks, as always, for your help.

On a side note everyone, does anyone have trouble with Reason and Logic looping together? Everytime I try to get a Reason song to loop with Logic it might loop once or twice (or not at all) but Reason will eventually lock up and its playback marker will stick on it's right loop marker and I'll hear no sound from Reason as Logic just keeps on looping. Then, if I let Logic keep playing, Reason might sync-up and start looping with Logic again or more often it doesn't. Could take 5 to 10 times around before it catches again, if at all.
I thought these types of issues were a thing of the past with modern software?
What's the deal?
Noah

Sync Logic with another application

Hi, I would like to sync Logic Pro with another program (Band in a Box). I am pressing "synchronize" and "record" get the program on hold (with a red/pink band at the top). I then set Band in a box to send "midi sync" to the virtual port. I expect logic to start recording, but it doesn't. On the other hand, I can see the midi notes coming in ( see them in logic's transport bar); also if I manually start recording, the notes get recorded. If I get the midi notes, why doesn't logic start authomatically? Manually I can not synchronies properly both programs...I have tried all different options in logics midi and synchronies options, but don't get it to work...appreciate any help

Logic does not sync to MIDI Clock. Anymore. Send MTC from BIAB or from Logic (in case BIAB can sync to MTC) instead.
Christian

Sync logic key commands?

hi.
anyone know if its possible to sync logic key commands with more than one mac?
the sharing prefs in logic dont work and i dont use mobileme anymore.
thanks.

benjamingordon wrote:
the sharing prefs in logic dont work
Hi
Yes they do, but they can be a bit fiddly to get right.
Step 1
All Macs on the same Local Network?
Step 2
Preferences:Sharing
On the 'Primary' Mac tick the "Key Commands" box in the Bonjour section. You might want to do this for all Macs on the network?
On the "Slave" Macs, tick the box to look for Shared Data on the LAN (might want to do this for all Macs on the LAN?)
Step 3
On the 'Primary Mac', save the current Key Commands using the Options:Export function in the Key Commands window.
Step 4
Depending on your firewall preferences, you may need to restart Logic on the slave Macs (and you may get an alert about in-coming network/firewall messages... Accept).
Step 5
On the Slave Mac, open the key commands window; Options:Presets.... under Bonjour, you should see your "Primary' key commands listed.
Alternatively, Save (Export) the KC's from one Mac, copy the file to the others, then open them using KC Window:Options:Presets.
The KC files are saved in
<User>:Library:Application Support:Logic:Key Commands
CCT

Pro Logic and Access Virus Ti Polar

Does anyone have any experience using the Virus Polar with Logic Pro? The Virus is supposed to be an audio interface. However; Logic does not recognize it. Any help would be appreciated.
Secondly, recording through an Apogee unit, either Ensemble or Duet with the Virus synth would sound better?

Did you go into the Audio preference in Logic and select the Ti from the drop down list? If it doesn't show in this list, does the Ti show in Audio Midi Preferences in the Utilities folder?
As far as I remember, the Ti is only a 16 bit audio interface whilst the Apogee gear is 24 bit. Access mention some massive sample rate / bit depth in their marketing but that is for the analog converters only, not the audio interface via USB specs. It's really a bit of a con.
I sold my Ti because it's not what Access advertise both in sound quality (as a plug in) and as far as "Total Integration" is concerned. I had all sort of problems with sync and arps going out of sequence. The moment I started using a dedicated audio interface instead of the Ti, all my problems with latency, popping and crackling stopped. I sold it and bought Zebra 2.
HTH.
D.

Syncing Logic and DP

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