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Resolved Increasing Drum note level by Sysex.

  1. Technical Question
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  1. Joe Watt
    Joe Watt
  3. Creating with MIDI
  4. Monday, 01 April 2019
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I program my songs using a roland mc-50 into a roland sc8850. I would like to incease only the snare drum volume (note 38 and 40) by sysex. in certain files. I select either Standard 1 or Standard 2 drum kits. I have used the NRPN 99/98 (26) cc6 - 127 but I'd like the snare to be louder without dropping the overall volume of the file.. Any help would be well appreciated. Joe
  1. sysex
  2. MIDI messages
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Eddie Lotter
Eddie Lotter
Sherlock Holmes The Voice
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Have a look at the section "Drum setup parameters" on page 240 of your manual.
The address you want to write to is "41 m2 rr" where m is the drum map and rr is the note number.
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  1. more than a month ago
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Joe Watt
Joe Watt
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Thanks for your response Eddie. Now I see it in the manual. I'll have a go at it..
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  1. more than a month ago
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  3. # 1
Joe Watt
Joe Watt
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Struggling with this Eddie. I understand Hex decimal ok and calculating the checksum, but getting confused with the choice of Map1 or Map2. Can u give me an example of increasing note 40 to a level of 127 in the STANDARD 2 Drum kit please. Joe.
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  1. more than a month ago
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  3. # 2
Eddie Lotter
Eddie Lotter
Sherlock Holmes The Voice
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Sure. The attached MIDI file will play the same note at the same velocity, but altering its volume with SysEx messages.
(I had to zip the MIDI file to get the forum software to accept it.)
Attachments (1)
example1.zip
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  1. more than a month ago
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  3. # 3
Joe Watt
Joe Watt
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Brilliant Eddie. Now I've got it. I appreciate your immediate response. Best regards, Joe..
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  1. more than a month ago
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  3. # 4
Geoff
Geoff
Sherlock Holmes The Voice
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Joe,

Just in case it might help a little, I've done a 'decode' of Eddie's .mid file to .txt, so it's rather more readable for reference.

ZIP of .TXT attached.

Geoff
Attachments (1)
EXAMPLE2.ZIP
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  1. more than a month ago
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  3. # 5
Joe Watt
Joe Watt
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Hi Geoff, just noticed your response. I've now downloaded the text. Thanks for helping. Regards, Joe.
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  1. more than a month ago
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  3. # 6
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