andrea

Thank yu Bill, I am going to test it and I will let you know!! I am sure that it will be great. Andrea

Ok bill, you are great!! The most important is curve 1 (that is curve that I usually use). I can draw more curves, but I need time to set up my feeling with the dynamics. I think that you can edit random curve 2, curve 3..(just putting random values or leave linear relation:000---000, 001---001... 027---027 etc...) and you can show me how I can modify by my self the conversion table of these curve.( I think 4 or 5 curve will be more than enought). In this way I can edit and correct the values any time I need without disturb you...are you agree?? Do you think that it is possible to see on LCD which curve I am using??and if the unit is working of no? Thank you again for your time!!!! This is my curve 1. const char curve1[127] = { //out // in 0, // 0 2, // 1 3, // 2 5, // 3 7, // 4 8, // 5 10, // 6 12, // 7 14, // 8 15, // 9 17, // 10 19, // 11 20, // 12 22, // 13 24, // 14 25, // 15 27, // 16 29, // 17 30, // 18 32, // 19 34, // 20 36, // 21 37, // 22 39, // 23 41, // 24 42, // 25 44, // 26 45, // 27 46, // 28 48, // 29 49, // 30 50, // 31 51, // 32 52, // 33 53, // 34 55, // 35 56, // 36 57, // 37 58, // 38 59, // 39 61, // 40 63, // 42 64, // 43 65, // 44 67, // 45 68, // 46 70, // 48 72, // 49 73, // 50 74, // 51 75, // 52 77, // 53 78, // 54 79, // 55 80, // 56 81, // 57 82, // 58 83, // 59 84, // 60 85, // 61 86, // 62 86, // 63 87, // 64 88, // 65 89, // 66 90, // 67 91, // 68 92, // 69 93, // 70 94, // 71 95, // 72 96, // 73 96, // 74 97, // 75 98, // 76 99, // 77 100, // 78 101, // 79 101, // 80 102, // 81 103, // 82 104, // 83 105, // 84 106, // 85 106, // 86 107, // 87 108, // 88 109, // 89 110, // 90 110, // 91 111, // 92 112, // 93 113, // 94 114, // 95 114, // 96 115, // 97 116, // 98 117, // 99 117, // 100 118, // 101 118, // 102 119, // 103 120, // 105 121, // 106 121, // 107 122, // 108 122, // 109 123, // 110 123, // 111 124, // 112 124, // 113 124, // 114 125, // 115 125, // 116 125, // 117 125, // 118 125, // 119 126 // 120 126, // 121 126, // 122 126, // 123 126, // 124 127, // 125 127, // 126 127, // 127 };

Hi, you are right bill, I don't need a unit with curves editable from a control surface but I am interested to have just a fixed and precalculated conversion between velocity in input and velocity in output. I mean, using Midi Velocity Changer, I found the suitable conversion curve that I need to adapt my keyboard to the expander.This program is able to display the change between in and out and so I have a table of conversion of vel. in to vel. out Here I reported a piece of that table for example: In OUt 000 --> 000 001 --> 002 002 --> 003 004 --> 007 005 008 . . . 103 119 104 119 . . 125 127 126 127 127 127 I need just a unit that apply this fixed conversion between midi velocity in Input and midi velocity in output. Eventually it could be interesting the possibility of choosing diffrent conversion table (precalculated with Velocity Changer) from the control surface...but it is not necessary. I will be very happy to have just a single conversion table. with this unit I will be able to play live my keybord and my expander without a computer with Velocity changer. Thank you bill!!!! By

Thank you Bill, you are wery kind. The converter that I am talking about is similar to Velocity Converter from Midi Solutions but a more simple one could be usefull. The converter is able to transorm a velocity value of an incoming midi message into another value. In this way you are able to change the velocity curve for your MIDI keyboard. It means that it let's you remap the function which maps the strength you hit the key to the volume the note plays. The problem is that my keyboard doesn't have a function to customize the velocity curve. When I use it with a external sound module the dynamic response is completely different. For example, you have to hit wery strongly (I mean very!!) if you want to send a velocity level of 127 to the expander. There is a freeware software that allow you to change velocity curve : Midi velocity curve changer (Trombettworks Software) http://www.trombettworks.com/velocity.php but I am looking for something that works without pc. I am sure that this can accomplished with MIDIBOX, but unfortunately I am just a piano player and I don't have any programming skill. This can be an additional use of mIDIBOX that can solve a lot of problem in a simple way. Thanks Andrea

Unfortunately no... Andrea

hi, I was wander if someone could help me with this project. I would like to build something like Velocity Converter from Midi Solutions... http://www.midisolutions.com/prodvel.htm Does anyone know some DIY project for that converter? Thanks Andrea

Thank you MTE! I have PIC16F877-20/P and I red in this forum that it can be used for this project in place of PIC16F874. Do I have to change something in the firmware or I can load floorboard_v1001.hex file without any change? I'm sorry for these stupid question but I'm new!

Thank you for your great reply!! I am glad to find someone that could help me to build this project;I am new in electronic and PIC world ; :) Just another question: which programmed did you use to flash the PIC? Thank you again

Hi, I am planning to build a simple controller tha sends program change message when you push a button. I think that the old foorboard project suit perfectly my need. It would be great if someone would show me where I can find the PCB. Meanwhile I was wandering that I can build a simple midibox64, connecting only few push button and few pot( for example 32 button and 32 put) In this case I have a question: can I load the complete midibox64_v2.4 in the pic or I have to program a new application. Thank you very much for you kind attention. By

Thank you for your kind reply. I will try to understand how to programm the midibox for my porpouse... but it would be great if you have some suggestion to share with me ! Thank you andrea

Hello.. I'am new here, and I am really impressed about the great projects present in this site. I need a controller that could send a program change and simultaneously control a relay controller swich jack for amp selector, just pressing a button. I was wandering if I could build a simple controller like that and It would be great if someone could tell me if it is possible with MBHP project or no. Is is a tipical application of a midi floorboard for guitar; for example the FCB1010 (behringer). This floorboard allows to trasmit simultaneously 5 program change and two MIDI controller commands per preset and control a relay swich with a note-on signal ( I think). Thanks a lot Bye bye Andrea