Reviews and questions about the entry-level MPC500
By onedub2000xl Fri Jun 27, 2008 6:48 am
i just got logic pro8, cant seem to quite figure out the correct midi settings for logic. I know my 500 midi settings are correct, especially since there are not that many options. I got logic as master and mpc as slave, however when logic plays the mpc, it sounds like its messing up the midi signal and it plays the sequence wrong. Just wondering if anyone has had any successful sync setups with Logic and the 500 or any other mpc and am curious what your logic settings are. I've searched for a week straight in both mpc and logic forums with no clear answer. Anyone got any suggestions?
By Mandzo Fri Jun 27, 2008 8:53 am
Although I have Logic and the 500 I haven’t tried to sync them yet. Could you be more specific about what is really going on when you hit play? Are the midi channels set up right? Maybe you should try restricting the mpc to only 1 channel (manual page 60) and see if it works.
By brazeca Fri Jun 27, 2008 9:42 am
What exactly did you try to do: Logic sending MIDI signal from tracks in its sequencer, using MPC as a sound source? Or just syncing Logic's audio and MPC playback? I don't think that Logic could interfere with MPC's sequence, if it doesn't send any MIDI note signal into it.

The correct way of working with external MIDI instruments in Logic is to set them up in the Environment. There you can actually configure your entire MIDI studio, virtually representing and setting up every MIDI equipped device you may have. After that you can control everything from Logic. It goes without saying that the first thing you have to do, is to read Logic's manual on how to set up the Environment objects.
By onedub2000xl Fri Jun 27, 2008 2:17 pm
i shouldnt have to use the environment, im not trying to record the midi signal...im just trying to sync the audio and record each track into logic via track solos, so that when im done recording each individual track, they(the tracks) sync up and play as they did on my mpc. if you use the environment you cant record audio. tried solo tracks through individual midi channels, still didnt play correctly. I definately still think this is a logic issue.
By brazeca Fri Jun 27, 2008 3:24 pm
I must say, it's not Logic. Now, after you explained what you are up to, it's easy to recommend a workaround or two. Ok, let me start with Logic settings. Try setting audio driver to the lowest I/O buffer size possible, which wouldn't result in audio artefacts like pops and clicks. The problem which you are facing is latency: the amount of time (dozens of milliseconds, actually) between the moment you start playback and the moment the audio, that gets into Logic, starts being recorded. You know, Logic requires some time to prepare the disk space, create a file, etc. This time gap results in loosing the very beginning of the part, and when it's more than 3-6 ms, parts from different tracks can come out of time with each other. Especially rhythmic parts like drums, percussion and bass.

If you are recording using the built-in audio interface (or any other interface which doesn't allow low recording latency: 3-6 ms), then try recording each part separately without syncing MPC to Logic. You can first switch on the recording to Logic, then after it has begun, switch on the playback of your soloed track from MPC. After doing all the recording, you can use Zoom In feature in the Logic's Sample editor, or in the Arrange itself, and adjust the audio region's start point (you don't have to physically cut the initial silence out from recorded audio - leave audio file alone, just drag the region's left side to the point where the sound begins). In Logic you can do that with sample accuracy (there are some modifier keys combinations that allow you to regulate accuracy while dragging/adjusting elements of regions or while moving entire regions in the Arrange, so please refer to Logic's Manual for that, because I don't remember these key combinations by heart).

If some of the tracks in MPC's sequence don't start with a sound with sharp attack (like a kick drum or a hat) or there's a silence before any sound begins, you can use the following technique for recording: put a short sound with a fast attack (like a hat sound or a kick drum) in the beginning of each track which has silence in the beginning (or where it's hard to find the start point visually after recording) - you have to do it in MPC and program this tag sound manually in the Step mode: place it exactly at 001.01.01 position of each track, where it needs to be put. This way, when the track is recorded into Logic, you will know the exact position for the start point of audio region. Obviously, the rhythmic parts don't need such tags, because they already have sounds with fast attack in the beginning. After recording, you will be able to align the tracks manually, using these tags, so that they lock into each other in playback. And the tag sounds can be removed from the beginning of the tracks in Logic's sample editor by selecting them and inserting silence instead.
By onedub2000xl Sat Jun 28, 2008 6:33 pm
thanks for the advice. I will try the sample editor work around tomorrow. As far as the syncing, i think ive given up...hahaha.
I know about the latency issues you are talking about but its way different, unless its an extreme latency issue...i first tried recording a whole sequence into one track just to test the syncing and it actually plays the sequence segmented and out of order...it would play random pieces with 3-4 seconds of silence in between the random segments of sound...thats why i thought it was a logic issue because logic was the master. can you upload audio clips on this forum? i wish i could let you guys listen to get a better understanding of the problem. For now though, i think the sample editor work around sounds easiest. good lookin out again on the advice.
By brazeca Sun Jun 29, 2008 12:15 pm
You can post links to your audio files, but please compress them to MP3 or other format to make it easier to download.

What audio-interface are you using with Logic? What are the settings in the Audio -> Driver tab in the Logic's Preferences panel?