By
nogginj
Thu Oct 21, 2010 3:47 pm
this is all about zero crossings and learning how to loop cyclical waveforms properly.
the point is, the beginning of the loop has to be almost exactly the same as the end, and i'm talking on the sample level. this is why zero crossings are so important - if it starts on a zero crossing and ends on a zero crossing, there will be no 'click' as the waveform tries to jump from one value to the next.
Think of it like a wave...a natural sound follows a wave pattern and, even if it's very fast, it eases from one value to the next. This is especially true for bass notes where the waves ARE actually slow.
Try to keep your loop as short as possible, trying to loop only one repetition of the base timbre of the sound.
Another trick you can try, is to take the loop, copy it to a new sound, reverse it, and then paste it right at the end of the loop. now make the loop cover both this forward and backwards traveling of the wave...however this technique is more useful on pads and strings.
TLDR; Find the absolute shortest section of your wave that repeats, and loop it with the start and end points both on zero crossings.