After recording or importing audio samples, you can make edits to cut out unwanted regions, to slice regions and copy, paste or repeat them, and so on. You do not need to worry about losing your original audio data, since the edits are non-destructive. This means that you do not edit the actual samples, but you edit a reference to them. We'll explain that: the waveforms that you see in the time line area are actually references to the original data on disk/sdcard. Editing these sample regions will not alter any audio data, it simply alters the offset or start- or end points of references to the original sample files.
For example, if you would split a sample into two halves, you end up having two sample regions. Each region references the same audio sample on disk, but the first part will have its end point changed to halve the sample and the second region has its start point changed to halve the sample. Moving a sample will just indicate to the playback engine to start playback of that sample at a certain time. Therefore, editing is extremely fast since no audio data is changed on disk!
As an additional benefit, you can undo and redo every editing action you perform using the curly icons on top, and it will be just as fast.
Editing is done using several modes, accessed by a number of top-row icons.
This is not really an editing mode, but extremely important when performing edits. In this mode you can zoom and scroll around the time line without having to worry that you accidentally edit anything. Although you can perform zooming and scrolling under certain conditions in the other modes, this is always a good mode to fall back to.
To scroll around the time line, slide your finger up/down/left/right in the sample area. Zooming in/out is done by 'pinching' with two fingers simultaneously, just as you would do in the web browser for example.
This mode allows you to move and trim samples. Tap in the middle of a sample and move it around on the same track or onto another track. Note that when you are zoomed in and you see only part of the sample, it is assumed that you want to align the sample to another track. In this case, the yellow box around the sample is not displayed, but you see the sample moving in real-time. Zoom out until one or both of the sample's edges are visible to be able to move the sample to another track.
Trimming (altering the start/end-point of a sample) is done by selecting an edge of the sample and moving it around. You cannot trim beyond the original (referenced) sample data, so you can only make regions smaller. Useful for cutting out unwanted noise at the start and end of a recording for example.
Note: When you have difficulty in grabbing the sample's edge for trimming, either zoom in more or increase the Touch Range from the Preferences.
Using the split mode, you can slice sample regions to cut them in two parts. When this mode is activated, tap and move your finger on the screen to where you would like to perform the split. A vertically dotted line will appear that will let you see where the split will actually take place: on desktops this is trivial since your mouse is a very fine pointing device, but using a thick finger is a bit more tricky. Hint: for small horizontal adjustments when sliding your finger, it helps to slide in a 45-degree angle. Note that only the region which is indicated by your finger is split.
Using this mode, you can perform cut, copy and paste actions just as you are used to in word processors. You can select an area that covers a certain time span and one or more tracks, cut or copy that and paste that anywhere else on the time line.
Make sure that the range you want to define is visible (use the Scroll mode if needed). Don't worry if the range will first be inaccurate, you can change the start- and endpoints more accurately later on. Then activate the Range mode. If the clipboard is empty, you can start to define the range: tap on the position and track where you want the range to start and slide your finger to the end point. Release you finger. This can be on another track if you want the range to span more than one track. A blue area will now appear which indicates your range.
If you want, you can now adjust the start and end points of the range to make them more accurate. Zoom in onto the start point and tap near the blue line. While holding your finger on the screen, slide the blue line to where you want the start point to be and release it. You can do the same for the end point.
Note: you can zoom and scroll by going back to the Scroll mode or by performing zoom/scroll gestures in an area where no sample regions are displayed. For example, if you only have one track, you can use the grey area beneath it to zoom and scroll without going back to the Scroll mode.
Now that you have defined your range, there are different options to select cut/copy, depending on your screen size:
When you have selected cut or copy, the blue range area will disappear and now it's time to set the position (time and track) you want to paste on. If you just wanted to cut this area, you do not need this step of course. Move to the position you want to paste to and tap your finger there. A pop-up menu will appear that will ask you to paste or clear the range. If the position you picked was in error and you want to paste elsewhere, press your device's Back button to get rid of the pop-up menu and tap again where you want to paste.
When you enter Range mode and you already have a range displayed, you can define a new range by simply starting to define a range as you are used to, but at another location. You can also tap on the middle of an existing range and select 'Clear range' in the pop-up menu.
Cut and Paste do not move the existing audio/MIDI regions. If you want to cut a range and move all regions behind it to the left, then you need to select Cut (Ripple) in the pop-up or More menu. If you want to paste a range and move all regions behind it to the right, select Paste (Ripple).
When this mode is active, selecting a sample will result in removing that sample piece from the track. Note that this action does not remove the sample from disk.
You can use editing in combination with the Grid options. This quantizes your editing operations to the grid size selected. For example, when you have selected a grid of 1/8th note, any move/split/trim/range operation will be performed in steps of an 1/8th note and nothing smaller than that. Activate the grid using a top-row icon or the list icon and set a tempo by tapping the time indicator at the bottom.