However, if there's no downbeat event at all in the audio for that bar, select the Items on both sides of the slice and 'Heal Splits In Items'. When you're done with the first slice point, make sure the track is selected and use 'Select And Move To Next Item' to bring up the next slice point without changing your zoom setting.ĭon't worry if you're not sure exactly which bit of the signal waveform actually constitutes the downbeat just guess as best you can. When adjusting boundaries simultaneously, the trim cursor should show a double‑headed horizontal arrow.As a safety measure against inadvertent overlaps, activate the main toolbar's Auto‑crossfade button so that they become visually more obvious. Clicking this icon switches Snap on and off.Drag on the slice point to adjust the boundaries of both Items simultaneously without creating gaps or overlaps the trim cursor should show a double‑headed horizontal arrow if you're doing it right. When you've finished, zoom in on your first slice point, switch off Snap, using Alt‑S, and align the slice point with the downbeat's waveform as accurately as possible. This makes the project easier to work on, bar by bar.The more accurately you can do this, the easier the fine editing work will be later. 'Split Items At Play Cursor' has been used on each bar's downbeat while the project is playing through. Much better to work in terms of bar‑long chunks instead, so, first of all, play your project from the start and 'Split Items At Play Cursor' ('S' by default) in real time on each bar's downbeat. Now open the Actions window by typing '?' (Shift‑'/') and check that the following are all assigned to convenient locations on your keyboard: Slice & DiceĪ big danger is trying to map the tempo in too much detail, because that tends to leave you with lumpy‑sounding MIDI parts. However, for the sake of simplicity I'll assume that we're working with a single mono/stereo audio Item. If your initial recording is in multitrack format, it also makes sense to Group all those Items together for the time being (select them all and type 'G'). This stops any audio shifting around while you're extracting the tempo information. Right‑click the Locking button in the main toolbar and set it up so that there are ticks in both the Enable Locking and Items (Prevent Left/Right Movement) boxes.
This prevents any Items from time stretching during the tempo‑mapping process. The first thing you need to do is select all the Items in your project (Ctrl‑A), open the Item Properties dialogue window (press F2 and click the subsequent 'All At Once' button), and select 'Time' from the Item Timebase pull‑down menu. This kind of tempo mapping can be quite laborious, though, so in this month's Reaper workshop I'm going to suggest a simple approach that gets the job done efficiently.
Reaper make a click map how to#
However, it's not always possible (or, indeed, musically desirable!) to use a click track, so it's handy, on occasion, to know how to synchronise the grid to a free‑running recorded performance after the fact. That way, their performances should line up nicely with Reaper's bars/beats grid. If you're starting your production with live audio recordings, but want to add MIDI parts or sampled loops later on, it often makes sense to ask the performers to play along to a programmed click track (or simply Reaper's internal metronome) during the tracking sessions. Tempo mapping in Reaper can be quick and easy - so switch off that click and get playing!
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