Axe-FX Ultra - Is it possible to send 2 byte values in a different way?

Question

Hi Dan,

Great product! I am using MIDI Designer Pro for a number of studio related things and I ran into a problem controlling my Axe-FX Ultra. After using MIDI Monitor to sniff messages and fiddling with the Sysex settings for a while I think I know how to ask my questions.

Setup:

Knob: Normal

Display Min/Max: 0-254

Ticks: 255

MIDI Min/Max: 0-254

Sysex Bytes: 00 01 74 01 02 0A 06  01 00 V

Checksum: None

Bytes in Value: 2

Question 1: Can MIDI Designer be setup to send the values 0 - 254 across 2 bytes as shown in the Axe-FX value grid located here?:

http://axefx.fr/AxeFXArchive/Docs%20%26%20Manuals/Axe-FX%20SysEx%20Messages.htm#hex

Explanation on the WIKI:

The old Standard/Ultra devices used to store the parameter values on *most* knobs as 0-254. This was split into two bytes, XX YY where XX was the lowest 4 bits of the value, and YY was the highest 4 bits.

Question 2: If the above can be accomplished as an option, can the knob be setup so that 0 is the "7 o'clock" position and 254 is the "5 o'clock" position? Right now, no matter what I do the 0 - 254 range is stuck between 7 o'clock and roughly 9 o'clock. I am guessing this is due to the maximum range of the 2 bytes being from 0 - 16,383.

Thanks! If you can do this I will will happily provide a bunch of Axe-FX Ultra layouts - using MIDI Designer with my fingers is far less stressful than reaching for a mouse and Axe Edit.

Rock on!

Mike 

Answer 1

NOTE: Final answer is here, placed by user.

---

Hi and thanks for your question and the love. We've been discussing this over the Support channel (email), but I'll include some of what I've said over there.

You noted that you need these values to be output:

0 - 00 00 

1 - 01 00 

2 - 02 00 

3 - 03 00 

4 - 04 00 

5 - 05 00 

6 - 06 00 

7 - 07 00 

8 - 08 00 

9 - 09 00 

10 - 0A 00 

11 - 0B 00 

12 - 0C 00 

13 - 0D 00 

14 - 0E 00 

15 - 0F 00 

16 - 00 01 

17 - 01 01 

18 - 02 01 

19 - 03 01 

20 - 04 01 

21 - 05 01 

22 - 06 01 

23 - 07 01 

24 - 08 01 

25 - 09 01 

26 - 0A 01 

27 - 0B 01

 

Which requires Named Ticks.

 

Notes on Named Ticks in This Problem

1. This is a sysex with 2 bytes and LSB first.
2. Named ticks allow you to edit text, so you can create the values in Excel (or whatever) and then copy and paste them into your knob. Example here for CamelPhat.
3. The values that you need don't go continuously, or you wouldn't need Named Ticks. Use our MIDI Byte Calculator to figure stuff out.  Here are some examples:

• What you call 15 is just 15
  
  http://mididesigner.com/help/midi-byte-calculator/?midi_bytes=f+0&lsb_first=on 
• What you call 16 is really 128! 
  
  http://mididesigner.com/help/midi-byte-calculator/?midi_bytes=0+1&lsb_first=on
• What you call 27 is actually 139!
  
  http://mididesigner.com/help/midi-byte-calculator/?midi_bytes=b+1&lsb_first=on

Etc. etc... with a bit of spelunking in a spreadsheet you would be able to figure out the pattern. Hopefully, when you're done you'll post the Named Ticks Edit Text box contents here... 

Thanks!

HERE'S A TEXT FILE WITH THE NAMED TICKS

http://mididesigner.com/qa/?qa=blob&qa_blobid=336646786596711650

AND THE EXCEL DOC THAT GOT ME THERE, TWEAKING AND TRYING

http://mididesigner.com/qa/?qa=blob&qa_blobid=17456442014572487446

 

 

Comments

Dan, thanks so much for helping me out with this! The 4 bit LSB nibble thing really had me stumped and the named ticks solution works perfectly. Several of the ranges in the file you sent needed tweaking but I will post for everyone. My particular situation needed 0 - 254. I hope it helps someone else as well!

Amazing support!!! Some apps are abandoned at the store, but not this one!!!

---

Thanks so much, it means a lot.

Here's a link to your own answer on the Named Ticks question. Good luck with the insanely powerful Axe-FX:

http://mididesigner.com/qa/2938/named-ticks-for-various-uses?show=3030#a3030

Answer 2

NOTE: Final answer is here, placed by user.

---

Hi and thanks for your question and the love. We've been discussing this over the Support channel (email), but I'll include some of what I've said over there.

You noted that you need these values to be output:

0 - 00 00 

1 - 01 00 

2 - 02 00 

3 - 03 00 

4 - 04 00 

5 - 05 00 

6 - 06 00 

7 - 07 00 

8 - 08 00 

9 - 09 00 

10 - 0A 00 

11 - 0B 00 

12 - 0C 00 

13 - 0D 00 

14 - 0E 00 

15 - 0F 00 

16 - 00 01 

17 - 01 01 

18 - 02 01 

19 - 03 01 

20 - 04 01 

21 - 05 01 

22 - 06 01 

23 - 07 01 

24 - 08 01 

25 - 09 01 

26 - 0A 01 

27 - 0B 01

 

Which requires Named Ticks.

 

Notes on Named Ticks in This Problem

1. This is a sysex with 2 bytes and LSB first.
2. Named ticks allow you to edit text, so you can create the values in Excel (or whatever) and then copy and paste them into your knob. Example here for CamelPhat.
3. The values that you need don't go continuously, or you wouldn't need Named Ticks. Use our MIDI Byte Calculator to figure stuff out.  Here are some examples:

• What you call 15 is just 15
  
  http://mididesigner.com/help/midi-byte-calculator/?midi_bytes=f+0&lsb_first=on 
• What you call 16 is really 128! 
  
  http://mididesigner.com/help/midi-byte-calculator/?midi_bytes=0+1&lsb_first=on
• What you call 27 is actually 139!
  
  http://mididesigner.com/help/midi-byte-calculator/?midi_bytes=b+1&lsb_first=on

Etc. etc... with a bit of spelunking in a spreadsheet you would be able to figure out the pattern. Hopefully, when you're done you'll post the Named Ticks Edit Text box contents here... 

Thanks!

HERE'S A TEXT FILE WITH THE NAMED TICKS

http://mididesigner.com/qa/?qa=blob&qa_blobid=336646786596711650

AND THE EXCEL DOC THAT GOT ME THERE, TWEAKING AND TRYING

http://mididesigner.com/qa/?qa=blob&qa_blobid=17456442014572487446