Logic creates a Sampler Track with all your regions loaded into the EXS24. From the pop-up, make sure you choose Create Zones From Regions (Screen 2). From the drop-down menu, choose ‘Convert Regions to New Sampler Track’. Now that our preparatory work is done, let’s convert our regions to a sampler instrument, select all the regions on the track and then Ctrl-click on one of them. Screen 2: We can create a Sampler Instrument containing all of our edited regions by selecting them and using the Convert Regions to New Sampler Track option. Once zoomed in you can finesse your region start points with the pointer tool and then check the result by using Fn+Ctrl+Left arrow: the key command for ‘Go To Selection Start’. Once you have added your rough split points you can tighten up your edits by quickly zooming in and out using Command+Z, the key command for ‘Zoom To Fit Selection’. To quickly rewind the track you can hit comma/full stop, which are the key commands for rewind/forward. This will split your region whilst listening to your track. A great gestural way to insert edits is to hit Play and then Command+T - the key command for Split Regions/Events at the Playhead Position. Listen to the track and split the region at any musical events that are of interest, for example, a stab or chord we may wish to trigger from our sampler later on. Ctrl-click on the audio region and choose ‘Bounce In Place’ then delete the old audio track. Later on, we are going to load sections of this track into the EXS24 sampler, but in order not to lose our edits we should make our changes to the timing permanent. Observe how your track now plays at the desired tempo throughout. Now that you have all your Flex markers in place, you can set your project to the tempo you want to work at by adjusting the bpm in the Control Bar. The frequency at which you need to insert markers depends on the song and you may well find putting a marker every four to eight bars is enough to keep the track at a constant tempo. Go through your song and insert Flex markers in the upper half of the region at the start of each bar, then drag each marker so it conforms to the bar lines on the arrange page (Screen 1, above). From the Arrange page go to Edit / Show Flex Pitch/Time, then from the audio tracks header choose the Polyphonic Flex mode, if it isn’t already selected. Let’s now use Logic’s real-time time-stretching to ensure each bar conforms to that tempo. For ‘Impeach the President’ I set my tempo to 96.4 bpm. Next, set your sequencer clock to this bpm value. Play the track and wait as the BPM Counter estimates the tempo (this may take four bars). On an insert slot call up the BPM Counter plug-in and open it. This will make it easier when arranging things later as your chops will always trigger at the same tempo no matter where they are taken from. You will find that many older tracks will not have been played to a click so, if this is the case, then edit your track to a consistent tempo throughout. This may be the first 30 seconds or it may be the whole track if there are lots of interesting, different sections. Next, pull the audio region’s end marker inwards until you have as much of the song as you are likely to want to chop. This key command makes editing really easy, and since your edit snaps to the transient you don’t need to zoom in and out to accomplish a rough edit. Do this until you have moved the start point of the region to the kick drum transient at beat 1 of the first whole bar. This is the key command for ‘Trim Region Start to Next Transient’. An efficient way to accomplish this is to repeatedly press Ctrl+Shift+]. If your track is like mine and doesn’t begin on the bar you will need to trim the region to the first downbeat. I’m going to use one of the most sampled tracks of all time, ‘Impeach The President’ by The Honey Drippers. President Selectīegin by dragging the song you would like to chop up onto an Audio Track in Logic. In this month’s workshop, I’m going to walk you through how you can use Logic’s Flex Time to put any track at a constant tempo, use the audio editing facilities to chop the track into regions, and finally load those regions into the EXS24 sampler. However, while the facilities are extensive it is not immediately obvious how to join the different features together. Logic has always had extensive facilities for chopping and editing audio and then triggering those edits in a sampler. Sample chopping still forms the backbone of many popular music tracks - for example, Kanye West’s 2016 track ‘Fade’ was built from many samples across multiple records. Logic Pro X sports extensive sampling tools. We can use Logic’s Flex Time to edit a song to a consistent tempo throughout. Screen 1: If you are going to chop up a song into sections to be triggered from a sampler then it helps if it’s all at the same tempo.
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