Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
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By glissando Sat Aug 18, 2007 10:58 pm
hi folks my name ralf,


I want to improve the live capabilities of our MPC 1000/2500 JJ Software.

To sequence the MPC live over the top of a DJ set, the >Tempo Control< feature is not pricise enough, due to the low pitch resolution (1%)

The >new Tempo Control< allows the user to adjust the tempo of the MPC with one or two Q-Link Control(s),- to a fantastic degree of precision.


Here it comes:
(i used some formulations from : stan steezs manual)


Assigning >Tempo Change< to Q-Link Sliders

Highlight the BPM column and Press
[WINDOW] to enter the >Tempo Change< screen.

Turn Tempo Change ›ON‹ using the DATA wheel.

Image


In the ›Q-Link‹ column, select slider 1, 2, or 1+2

With the ›Q-Link Range‹ you set the width of the
range in which the original tempo will vary. In
this example, it is set between 90% and 100%.
the total range is shown as +/- 10% (20%)
With the >Q-Link Resolution< you set the number
of steps in which the tempo will vary. In this example,
it is set to 200 steps. as we have a total range of 20%
(+/- 10%), one step resolution would be 0,1 % change
in tempo.

N.B. The >Q-Link Resolution< is not inconclusively necessary.
The resolution could always set to the max of 200 steps.


Image

Screen 2 will show you an improved version of the
new Tempo Control (nTC) feature.
The ›Q-Link Range‹ is controlled only by one parameter.
In this example, it is set to +/- 10%. this would be a
total range of 20%.
With the ›Q-Link Resolution, you set the number
of steps in which the tempo will vary. In this example,
it is set to 200 steps. as we have a total range of 20%
(+/- 10%), one step resolution would be 0,1 % change
in tempo.

N.B. The >Q-Link Resolution< is not inconclusively necessary.
The resolution could always set to the max of 200 steps.
In order that percentage change in tempo is only determined by
the value of the ›Q-Link Range‹

e.g if the value is set to +/- 5%, that means a total range
of 10 %, one step resolution would be 0,05 % change in tempo.

This high resolution is absolutely necessary for proper beatmixing.


Image

If you choose in the column select, slider 1+2 you will
get a very powerful feature.
No need to set a >Q-Link Range< and no need to set a
›Q-Link Resoultion.

Press ›Close‹ (F4) to save your settings. Back
on the MAIN screen a second BPM indicator
will appear below the original, displaying Q1, Q2
or Q1,2 and the actual tempo of the sequence.
Play back the sequence and use
both faders to coarse and fine control the speed.
the range of the coarse control (Q-link 1)
is +/- 100 % (total range 200%)
internally it has 200 steps, that gives you a
resolution of 1%.
the range of the fine tune control (Q-link 2)
is +/- 5 % (total range 10%)
internaly it has 200 steps, that gives you a
resolution of 0,05%.

greetings from germany
ralf
Last edited by glissando on Wed Aug 29, 2007 9:54 am, edited 1 time in total.
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By Antonym Sun Aug 19, 2007 1:18 pm
A+, excellent first post
well thought out and finely written

i agree that it's too imprecise. this makes this function almost unusable because of the "grit" of the sweep: 1% with no .00 control is too coarse!!!
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By mikolo Sun Aug 19, 2007 3:24 pm
A finer resolution here would be great.
Also for live MPC work id find Qlink>tempo and Qlink>swing way more useful if the settings were specific to a particular program. So if your on a particular track you can adjust tempo or swing via the Qlink and when you move to another track(with a different program) you can do all the other Qlink stuff, without having to open windows to turn off the Qlink tempo or swing.
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By glissando Wed Aug 29, 2007 9:53 am
4.83

Bug fixes

-------------------------------------------------------
Bug fixes & Addition & Delete: New OS Ver4.83 29-Aug-2007
-------------------------------------------------------

4. [TEMPO]
??[Q-link - > tempo change.]
??Resolution is rude when a range is narrow.


Hi folks,

it looks that the rough resolution in earlier os versions was a bug!

Now, in 4.83. the resolution is only depending on the width of the ›Q-Link Range‹.

As smaller the width, as finer the resolution is.

This makes this function absolutely usable.

No need for "The new Tempo Control feature".
User avatar

By Antonym Wed Aug 29, 2007 1:08 pm
thanks for calling attention to this issue, your idea yielded the solution, though it wasn't what you had in mind.

excellent work all around, you and the programmer both
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By rinseout Wed Aug 29, 2007 5:01 pm
Thanks ralps, didnt even know you could control the tempo woth a qlink :roll:

Will surely use this feature, now that it is working so nice :wink: