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        MIDI-OX >> Questions and Discussion >> Please explainme more about NRPN
        
(Message started by: enb141 on May 15^th, 2002, 4:08pm)

Title: Please explainme more about NRPN
Post by enb141 on May 15^th, 2002, 4:08pm

I want to know what values to insert in Value1 , Value2 like this

1 NRPN ? ? ? ? | 1 NRPN ? ? ? ?

note that ? is what I need to know to put

Title: Re: Please explainme more about NRPN
Post by Jamie OConnell on May 15^th, 2002, 7:28pm

NRPN Mapping

You can map multi-message NRPN number and value to MIDI messages, SysEx or other NRPN numbers. When you choose NRPN as event type, the number and value fields have greater range than normal MIDI values. NRPN numbers and values are represented by 14 bit quantities: 0 - 16383 decimal. This is because 2 MIDI bytes (MSB and LSB) are used to formulate the number. When only MSB is transmitted, the magnitude of the value is similar (0 - 16256), but the granularity is not as fine. There are several MAP level options available for NRPNS:

[x] Wait for Complete NRPN data entry (Ctrl 38)

When checked, causes MIDI-OX to wait until all 4 messages comprising an NRPN have been received. When unchecked, reacts as soon as Ctrl-6 (Data Entry MSB) has arrived (3 messages total).

[x] Map NRPN data increments (Ctrl 96,97)

When checked, causes MIDI-OX to consider data increment and data decrement messages as if they were Data Entry values

[x] Send Full NRPN

When checked, causes MIDI-OX to send both MSB and LSB of the NRPN value. When unchecked, only the MSB (Ctrl-6) is transmitted.

You can use the NRPN Calculator in MIDI-OX to construct NRPN's from MSB, LSB. Also check out Glatts NRPN Tutorial (http://www.borg.com/~jglatt/tutr/rpn.htm)

Title: Re: Please explainme more about NRPN
Post by enb141 on May 16^th, 2002, 4:12pm

The info is really good but can you show us some examples with NRPN