Check out Bas Rutten's Liver Shot on MMA Surge: http://bit.ly/MMASurgeEp1 Offsetting MIDI tracks is basically designed to compensate for any amount of latency or lag time that may occur in your recording. When you record audio, latency can occur on a regular basis. This is the delay that occurs between the audio being processed in your computer and coming out of your speakers. When you record MIDI, however, latency may not occur because of the instantaneousness that MIDI has the ability to create. So, when you play a recorded audio track with a recorded MIDI track, the two can sound like they are not in sync. To correct this, you can offset your MIDI track so that the notes played sync up exactly with your audio track. Navigate to the top menu bar and click Setup -- Preferences. In the Pro Tools Preferences dialog box that appears, choose the MIDI tab to enable and adjust any sort of offsetting. To do so, enter a number between -10,000 and 10,000 in the Global MIDI Playback Offset field. The number you input will refer to the number of samples that are offset on the track. Use a negative number to compensate for any delay that may occur. For instance, the MIDI notes might occur slightly ahead of the audio notes, so a negative number will help delay those MIDI notes to occur simultaneously as the audio notes. In order to figure out how many samples to input in that field, try navigating back up to the top menu bar and clicking Setup -- Playback Engine. This dialog box will tell you how many samples you are actually playing at with regard to your Hardware Buffer Size (H/W Buffer Size). Find that amount and input the negative of that number. For instance, if you recorded at 512 samples, put -512 in the Global MIDI Playback Offset field. Read more by visiting our page at: http://www.mahalo.com/courses/learn-pro-tools-9-part-3/prepare-to-record-midi/offset-midi-track//
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