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Bob Sellon JamMan upgrade was midi-locked delays and stuff



max valentino  wrote:

> I have my JamDude loaded with Bob Sellon's latest software, and have 
>found
> it to be a remarkable improvement over the original's "limitations".

and

> And...al of this is controlable "sans-midi" (via two three button
> footswitches), which is very good as even though the new software has
> improved the versatilty and functions of the JamMan, the midi 
>implementation
> is still prone to latency.

I think to access a lot of the things in the new ROM, you really do need a
MIDI controller unless you want to twiddle knobs while you play.
I don't really notice any latency with the JamMan myself and I often do
rhythmic loops, so maybe I've gotten used to it and compensate 
subconciously
for any latency. This is all subjective on my part as I don't have a way to
measure any possible latency. I'm using a Digitech PMC 10 midi controller.

This is a quote from an email I got from Bob a while back regarding the 
MIDI
latency with the JamMan

Bob Sellon wrote:

> Controlling the JamMan via MIDI will indeed be slower than via the 
>footswitch.
> MIDI is at approx 32k baud. I seem to remember new data arriving every 
>320
> microseconds but when I do the calculation now it comes out to 32
> microseconds. At any rate it takes some time for the data to actually be 
>sent
> from one device to the next, then takes additional time for JamMan to 
>respond
> to it. My main focus on the JamMan was the MIDI clock but I think the 
>general
> purpose MIDI was pretty good as well. I'd be surprised if the latency is 
>more
> than 5ms but I'm not 100% sure.

Max are you using Version 4 of the special ROM?  Make sure you report back
to Bob with any of your observations or possible bugs, so he can possibly
fix them in future versions (see below).  My favorite thing in the new
upgrade is the Delay mode which is much like the Delay mode in the original
JamMan software with adjustable feedback except you can go back and forth
between loop and delay.  Lately I've been playing around with the Sampler
mode which lets you trigger 4 samples independently and asynchronously of
each other.  I haven't tried the "Mellotron" mode at all.

For those interested, Bob is working on a new update for the JamMan.
I don't think it's going to have many new features from Version 4, mostly
bug fixes and making the functionality that's in there more "robust" to
quote him. I don't think he has a lot of code space left on the ROM for 
much
new stuff. I don't know when the new update might be available so please
don't bug him.  I think he's doing all this because these are features he
wants to have when he uses the JamMan.  I think Bob is finally going to
charge for the new ROM when it's ready so he can get some compensation for
all of the time he has put into it but I don't know how much it will be.

Bob has also mentioned to me in the past that he was working on a JamMan 
app
for Windows but since I have a Mac I can't help him test this.  Any of you
Windows users that have JamMen might want to contact him and see if this is
still in the works.


Ed