anyone know how to generate random midi in real time?

A couple of things I know are...

1/ Noatikl = define parameters etc and it will generate midi (notes and cc) and can integrate via IAC into Logic

2/ Spiral (NI Reaktor) = more based around a strange spherical grid system but ends up pretty random.

I don't know how to do this in Logic itself, but I believe Noatikl is pretty comprehensive in this area. Expect a learning curve I think.

Random notes are difficult because a MIDI Note actually consists of two events, Note On and Note Off a while later. If you transform either to something random, you'd get hanging notes all over the place especially when doing it live. Logic actively prevents this so a little trickery is needed. One quick but admittedly dirty way to do it goes like this:

Create three Transformers and one Voice Limiter in the Environment and cable them serially, then insert that string of objects between PhysicalIn>SUM and SequencerIn

In *Transformer 1*, Set Conditions to Note and the Operation to P-Press (converts Notes to Poly Pressure)

In *Transformer 2*, Set the Conditions to P-Press (so only these get affected) and the Operation to Random for DataByte 1 (which was Note Pitch before we converted to P-Press)

In *Transformer 3*, Set Conditions to P-Press and the Operation to Note (converts Poly Pressure back to Notes)

Now you get random and hanging notes. To cut down the amout of hanging notes, set the *Voice Limiter* to the number of notes ou can bear at the same time.

Obviously this approach works far better with percussive, decaying sounds and not so nice with an organ sound.

Christian

I sometimes turn off the sound and just play the keyboard randomly.

Put a young child in front of a MIDI keyboard, and have at it. Record whatver they push.

Cheers

Ps don't forget to pay in Ice Cream...

christianobermaier wrote:
Random notes are difficult because a MIDI Note actually consists of two events, Note On and Note Off a while later. If you transform either to something random, you'd get hanging notes all over the place especially when doing it live.

You are quite right Christian, but I still think there are some ways to solve that in the Environment. For some reason I created such a tool in the pass ( it was a Logic custom offer or something like that ... ). I just converted this old LSO to L8 project. Here is a short description of the Macro "Elements" below:

*INPUT NOTE RANDOMIZER - ELEMENTS*

1."On/Off" CC# Assign box - you can set any CC# 0-127 here to control the Global ON/OFF Macro button(2) externally.
2.Global ON/OFF Macro button - switches the Macro ON/OFF. In OFF mode the macro is bypassed.
3.Note Pitch Low Randomization range box - determines the low range randomization value.
4.Note Pitch Top Randomization range box - ( determines the top range randomization value ).
5."Panic" CC# Assign box - you can set any CC# 0-127 here to control the "Panic" button (6) externally.
6.Panic Button - resets any playing or hanging notes in both Macro ON/OFF modes.
7.Note Velocity Low Randomization range box - determines the low range randomization value.
8.Note Velocity Top Randomization range box - ( determines the top range randomization value ).

Note: +There is a Stand Alone Macro layer in the template project so the macro tool can be easy imported as an Environment layer into other Logic projects. The tool is Polyphonic ( no Voice Limiter is applied ) so you can use it to generate random chords playing same chord rhythmically etc.+

Also is it possible to generate random midi events by just letting something run in the background?

I think so - something like Arpeggiator object may do the job as a Note generator in a combination with some Enviro gear or Macro...

*Live Input Logic Note Randomizer v1.0* - [DOWNLOAD|http://audiogrocery.com/files/in note_randv1.0.zip]

!http://img59.imageshack.us/img59/699/innoterand.gif!

!http://img59.imageshack.us/img59/4967/aglogo45.gif!

apple know what's wrong wrote:
When i've got time his weekend i'll give Vacheto's input note randomizer a thorough testing.

I had some free time yesterday to make a short review of the input Randomizer version cause it was old one made by some other requirements. I found out a few things I had to fix in the new Update (below) like:
1. The original Note Input order is changed after the randomization which is fixed now ( the original input order is not changed in the new version ).
2. If you have held some chord or notes and switch the global On/Of Macro button, the notes hanged in the previous version (it is fixed now by sending an auto-reset ).

In major, now the Live Input Randomizer (pre midi processing) works as the Transform Window (post midi processing). I guarantee no hang notes, though I decided to leave the "Panic" function which may be useful for other purposes.
In the screenset the Macro stays as float window, but its original is patched/cabled in the Click & Ports Environment layer between the Physical Input and the Sequencer Input. There is a copy of the Macro tool placed in a separate Environment layer named as "In Randomizer" which can be used for easy import into other Logic projects. This version is recommended !

*Live Input Logic Note Randomizer v1.1* - [DOWNLOAD|http://audiogrocery.com/files/in randv1.1.zip]

!http://img59.imageshack.us/img59/4967/aglogo45.gif!

This isn't random but if you're into Cage, check this out.

http://www.apple.com/downloads/macosx/audio/elysium.html

It's a free app that I use to feed midi into Logic. Produces some lovely Cagey results (sometimes!!!)

cheers

How hard it is to disorganise... LOL 😉