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Re: Multitrack looper (was: Loop features, FX processor)
At 6:18 PM 2/9/97, Matthias Grob wrote:
>Dr Pycraft said:
>>> >The JM is great; the only differences I'd make are
>>> >1. The ability to play different loops concurrently, ie like a
>>> > recorder where each could be muted, faded etc
>>> This is something many dream of...
>>> How would you like to control those in practical terms (a key that
>Dr Pycraft again:
>>Exactly the same way the JM deals with separate loops at the moment - by
>>scrolling thgrough them. If I remember correctly (I'm not a user of
>>multiple loops) the JM shows the current active loop on the front panel,
>>andd operations only apply to that loop. So if you have loops 1,2 and 3
>>and you want to fade 3, select it and hit "fade". The other loops
>>as before. OK you have to remember what's in what loop, but we have to
>>that for multiple loops anyway.
>Now I am confused. I was not aware the JM was able to play its various
Before we get too far with this, lets try to define some terminology. We
had to do this when we started thinking about these ideas at g-wiz long
Loop - a potentially complex set of media data, repeating in some fashion
in time. A "Loop" can contain one or more "tracks." The tracks repeat in
some relation to the loop repetition rate, and may all be synced together
in equal lengths or have complicated time relationships to each other. Any
looper, no matter what it's features, would only play one loop at a time.
When we talk about multiple loops, we mean things that are discreet from
each other in time. So you might switch from one loop to another, but you
wouldn't play two at once. If you did, you would still have one loop, but
it would just have more tracks. Got that?
Track - A singular set of media data, available to be repeated in some
fashion within a "loop." A track can be operated on with the various loop
functions we have available.
So the echoplex and jamman have multiple loops, but really only use one
track at a time in a loop. Some of the functions give the appearance of
multitracking, like overdubbing on both of them, and multiply and undo on
Then there are all sorts of things that can happen in a multitrack
environment. Grouping, copying, different processing on each track,
defining relationships between tracks, etc. Really a whole new set of
performance functions. How you put all that in a usable interface, that
makes sense for real-time, live usage, is the tricky part!
Kim Flint | Looper's Delight
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