![]() Some synchronizers send Full Frame Messages (instead of MTC) to locate the slave device (Logic Pro in this case) to a new position, without implicitly starting playback. Once again, incoming MTC data has higher priority, if conflicting information is received. Logic Pro also obeys Full Frame Messages, and sets the playhead to a new location, without starting playback. Logic Pro ignores these messages when incoming external MTC (MIDI time code) commands are detected. ![]() There is no noticeable difference in the response of Logic Pro to the Play and Deferred Play commands, as Logic Pro can locate to any position almost instantly. Rather than having the machine play immediately, it is asked to reach the desired SMPTE position before playback is started. Logic Pro recognizes these commands when listening to MMC Input:ĭeferred Play is a special command for mechanically slow synchronization slaves such as reel-based tape recorders. Listen to MMC Input checkbox: Select this checkbox to control Logic Pro by MMC (MIDI Machine Control) and so-called Full Frame Messages. This setting will not be altered by the “Auto detect format of MTC” function. If you want to synchronize Logic Pro to one of these unconventional frame rates, you need to define the format manually. The “Auto detect format of MTC” option only switches to 29.97 (drop frame) or 30 fps (non drop) if one of the other conventional formats was previously set. This interpretation will usually be correct, because these two formats are used as a standard. Logic Pro automatically interprets frame rates of “approximately 30 fps” as either 29.97 (drop frame) or 30 fps (non drop), depending on whether or not the drop frame format is used. The MTC standard does not allow a distinction.Ī measured rate of 30 fps could also be 29.97 fps time code running too fast, and vice versa. Note that it is not possible to automatically distinguish between the 29.97 and 30 fps MTC frame rates: You should generally leave this option selected. “Auto detect format of MTC” checkbox: This checkbox, when active, analyzes the incoming time code and automatically sets the correct frame rate.
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