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        MIDI-OX >> Questions and Discussion >> MT-32 Editing
        
(Message started by: george on Mar 20^th, 2005, 10:33am)

Title: MT-32 Editing
Post by george on Mar 20^th, 2005, 10:33am

Can someone please help me edit the patches on my MT-32. As a relative newcomer to computer music and midi I am having great difficulty changing the octaves on my MT-32.I really need the process explained in as simple terms as possible. I have installed MIDI-OX and connected the midi in / out but can.t get any further. I am using the module with a midi accordion but the sound is 2 octaves too high. There is no external adjustment on the accordion. Please help George

Title: Re: MT-32 Editing
Post by Peter L Jones on Mar 20^th, 2005, 2:16pm

I typed MT-32 into Google and this was the fourth entry on the first page:
http://www.queststudios.com/roland/utilities.html

What were you hoping to achieve with MIDI OX?

Title: Re: MT-32 Editing
Post by Jamie OConnell on Mar 22^nd, 2005, 7:58pm

Changing the octaves, how? You mean, like playing a note an octave higher (or lower?), or do you mean the display of which octave a note is in?

Title: Re: MT-32 Editing
Post by george on Mar 23^rd, 2005, 5:04pm

on 03/22/05 at 19:58:03, Jamie OConnell wrote:

Changing the octaves, how? You mean, like playing a note an octave higher (or lower?), or do you mean the display of which octave a note is in?

Hi Jamie, sorry if I sound confusing. I need to lower the overall pitch of the MT-32 by 2 octaves. I am using it with a midi accordion which has no octave change but sounds 2 octaves too high George

Title: Re: MT-32 Editing
Post by Peter L Jones on Mar 24^th, 2005, 4:30am

Ah, so it's not the MT-32 you want to change - it's the accordian...

Options->Data Mapping...
Click the "Insert" button
In the "When Input matches" section,
Set the "Event Type" to Note On
Set the "Min Value" to 24 and the "Max Value" to 127

In the "Set Output to" section,
Set the "Min Value" to 0 and the "Max Value" to 103
Click OK

Repeat the above (from "Insert") but set the Event Type to Note Off.

Make sure "Turn Map On (after OK)" has a tick then click OK.

That should do you.

Title: Re: MT-32 Editing
Post by george on Mar 24^th, 2005, 3:46pm

Hi Peter, it's really the KEY Shift I need to change. George

Title: Re: MT-32 Editing
Post by Peter L Jones on Mar 24^th, 2005, 6:26pm

Sorry, you're using a term I don't understand. What's "key shift"?

Title: Re: MT-32 Editing
Post by george on Mar 25^th, 2005, 5:25pm

Hi Peter, it's on page 7 of the MT-32 implementation chart where I assume you can edit the notes in semitones, plus or minus 24 George

Title: Re: MT-32 Editing
Post by Peter L Jones on Mar 26^th, 2005, 3:10am

Sorry, you've lost me again. What MIDI events are we talking about?

Title: Re: MT-32 Editing
Post by Jamie OConnell on Mar 28^th, 2005, 12:35am

There is no standard 'key shift' in MIDI -- Instead a MIDI Note Pitch is just a value between 0 and 127 (Middle C is note #60). It could be that the MT32 has some special controller to change the octave, but I don't know what that is.