Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
By dtaa pla muk Mon May 02, 2011 6:08 pm
here's an idea to combat the issue of double notes that occur when the pads are used (this is not a thread about the free jj os pad issues or sensitivity settings).

often when i am finger drumming, i will get double hits. this is particularly noticeable when the pgm is in MONO, FULL LEVEL is OFF, and there is a reasonable velocity curve (default of 50 is fine). you'll notice that your first, hard hit is cut off by a 2nd hit a split second later w/ much less velocity.

this has less to do with technique and more to do with software. the MPC is simply responding to what's happening on the drum sensor and interpreting it accordingly.

now, my idea is to have a simple, user-definable duplicate filter to help trim some of those extra hits. the parameter in use is "window" and it will be conceptually measured in ticks or milliseconds. follow my pseudo code.

Code: Select allwindow = 5 ticks
if(pad is struck)
  { sample is played and/or note is recorded.  }
if(pad is struck again before 5 ticks)
  { sample is NOT played and/or note is NOT recorded   }
if(pad is struck again after 5 ticks)
  { sample is played and/or note is recorded.  }



this could be considered "micro timecorrect" in that it does the same thing as TC but in a much smaller time frame.