Highlight the sampler module, then tap 'edit' in the module properties. At this point you've probably run into the problem of hearing clicks, which can be alleviated by adjusting the sample volume envelope. Drawing in values to the far right (no sample playback) is a quick and easy way to enter note rests. Pressing play to hear your changes will automatically lock the pattern for you. Make a mistake? Use the 'undo' in the main menu (upper left). To hand draw in specific values, tap the lock in the upper right. All the way to the left indicates the beginning, middle (numeric value of 4000) means sample will play back at the 50% point, and far right means you won't hear anything because the sample starts at the end. The bars indicate at what point the sample will begin playback for each line. After entering randomization values on the third row and tapping the 'interpolate' button you should see values entered in the pattern, visually represented by yellow bars. For this example, randomization is required, because there are no values entered as of yet. It's purpose is so that you don't have to enter values by hand. When you tap the interpolate button it will enter values ranging from the top of the highlighted section to the bottom. Another way to adjust values is to use the 'apply envelope' button, do this by adjusting the 'envelope start' and 'envelope end' sliders in the fourth row, and it will apply those values. The interpolate button in the bottom row applies the settings to the highlighted selection of the pattern. When all the way to the left no randomization occurs. The next row has 2 sliders for randomizing. On the next row choose the far right option 'XXYY' so that values will be entered (for future reference, you can interpolate notes 'NN' too, for random melodies, volume level 'VV', etc.). The step is handy if you only want the curve to apply to every 2nd line, 3rd line, etc. The top row lets you select the type of curve, ping pong on/off, and step. In the pattern menu (upper right) choose 'select all' to highlight the pattern, then also 'enable level drawing' to give you a visual representation as well as the option to quickly adjust by hand, and then finally choose 'Interpolate' to open the interpolator. Also enter '07' in the effect column (EE) for each note, which is the 'sample offset by percentage' effect. In the pattern editor enter C5 (default sample pitch) on every fourth line (or 2nd, or 8th, or whatever). Use the main menu (upper left) to match the project tempo to the sample tempo. This will automatically import the sample to SunVox in a Sampler module, ready to connect to the output. Use 'Open In' in AudioShare to import a sample to Sunvox. Been playing around with the new interpolator in SunVox, and it works great for sample slicing.

Sunvox samples