Re: Sp-202 loop pop

[Mark <sine@zerocrossing.net>]

yeah, what your getting is a pop due to a sudden change in frequency 
because
you've cut a waveform at a point where it isn't at "zero"  This is called 
the
zerocrossing point.  You're probably better off sampling it into a computer
and using a decent audio editor to either fix the loop in and out points, 
or
do a very quick fade to nothing at the begining and end of the loop.  Then,
use a smart media reader/writer to put it on the Flash card that goes into
the 202.  I have the 303, but I imagine the 202 works pretty similarly.

Another way of doing it is to use the fine loop length control to try and 
get
at a point where the sound is at "zero"  There should be specific
instructions in your manual.

Mark
(sine@zerocrossing.net ha ha)


klem klemmingberg wrote:

> I was slapping a loop into my SP-202, a repeating pattern from a synth.
> My problem was that regardless of how I set the length, I always got
> a pop.  I sampled at different levels, through a compressor, etc.,
> but still got the pop.  I don't know if this is  a common occurrence
> with the sp-202 (I've only had it a couple of weeks, & this is the first
> instance of this problem.)
> My suspicion is that it has to do with varying volume levels & frequency
> content at the start & end points (the synth patch has rises & falls, but
> is never free of a little noise.)  I suspect the problem could easily
> be solved by a crossfade function, which the 202 does not appear to have.
> My questions are two:
> 1.  Any one have any suggestions for disposing of the pop on the 202?
> 2.  Are there any relatively inexpensive looping devices out there with
> a crossfade feature of some sort.
>
> thanks
> T om