midi-entry / data saving

[AM]

dear all

 

as so often i try out strange things i switch on midi-entry, read the pitches which i enter from a keyboard. everything clear so far. I am now trying to do this in a 2-second-loop (with sleep-function), so that variable X would always be assigned new values. at the end of the loop sequence, however, X is NIL. only when I evaluate X again are the values assigned. (see video)

 

(the idea is... to IMPORT live-midi into a "realtime-process")

 

some ideas?

 

thanx
andré

 

 

 

 

[JulioHerrlein]

I don´t know if I got the whole idea but you can send a bunch of midi notes from any DAW to Opusmodus using a virtual midi cable.

Record whatever you like onto reaper, logic, ableton live, etc and set a virtual midi output port to Opusmodus.

You can send this midi notes at 3x the speed of original tempo if you like.

The length information can be obtained only by import midi, however.

Best,

Julio

 

It´s a sort of "mechamical solution" but I like it

[AM]

thanx! but... it's "only a LISP problem"

 

with LOOP and SLEEP my code should read X (the midi-values) every 2 seconds - (sleep 2). i don't know why "LISP don't safe" variable X inside the loop when i'm doing "midi-entry".... 

[opmo]

Nothing to do with MIDI Entry - I wonder if this is possible with in the loop.

[AM]

with OSC - (with the external osc-library i've sended you) - it should work similiar?

loop-function which PRINT the revcevied osc-values over and over (it works). i would like to do that with MIDI

 

but i'm not a lisp pro....

(code not by me)

 

 

(defparameter *in-port* 9999)
(defparameter *in-socket* (make-socket :type :datagram :local-port *in-port* :format :binary))

(setq *osc-receive*
      (process-run-function "osc-receive-process"
        #'(lambda ()

            (loop do (print (osc::decode-message (receive-from *in-socket* 2048)) #.*terminal-io*)))))

(process-kill *osc-receive*)  ;; Prozess wieder anhalten

 

[AM]

I have now found a SOLUTION that might be also interesting for LIVE CODING:

 

With the APP OSCulator you can convert midi-input (by an external keyboard) into OSC and then read it in real time (via osc-library + code) in OPMO (see video).

 

Of course, it could also be done directly from OSC (then via an APP such as TouchOSC from the mobile or tablet). you just have to reread the values (by a loop-function) as you can see in the video; in this way, certain parameters of the LIVE-CODING could be controlled / influenced from the outside.

 

LINKS:

 

OSC to LISP:

GitHub - zzkt/osc: a common lisp implementation of the Open Sound Control protocol aka OSC

GITHUB.COM

---

a common lisp implementation of the Open Sound Control protocol aka OSC - GitHub - zzkt/osc: a common lisp implementation of the Open Sound Control protocol aka OSC

 

OSCulator:

Home | OSCulator

OSCULATOR.NET

---

Links your controllers to your favorite music and video software. Works with Nintendo Wiimote, iPhone and more.

 

TouchOSC:

TouchOSC | hexler.net

HEXLER.NET

 

 

VIDEO:

 

left-  PROTOKOL to see what's MIDI-in

right - midi to osc (OSCulator)

bottom - OPMO with midi-data PRINT in the listener 

 

 

BASIC CODE:

 

(defparameter *remote-host* "127.0.0.1")
(defparameter *in-port* 1234)
(defparameter *in-socket* (make-socket :type :datagram :local-port *in-port* :format :binary))

(setq *osc-receive*
      (process-run-function "osc-receive-process"
        #'(lambda ()
            (loop do (print (osc::decode-message (receive-from *in-socket* 2048)) #.*terminal-io*))))) ;; instead of PRINT you could use SETF

(process-kill *osc-receive*)  ;; STOP "listening process"

;;; CODE by philippe kocher

 

 

[AM]

here is a short sketch of how you can integrate a midi keyboard into live coding. evaluate the BASIC SETUP as before but in a LOOP (here 10 times) the LIVE-CODING setup, so a new value X (the PITCH (midi number) from the external keyboard) is always read in (which comes from the keyboard)...  

 

these values can now be used on various parameters. for this sketch only pitch + tempo (see: tempo (list (* x 3))

 

VIDEO: at the beginnig you see data coming in from midi keyboard

 

 

 

some code/sketch

 

(defparameter *remote-host* "127.0.0.1")
(defparameter *in-port* 1234)
(defparameter *in-socket* (make-socket :type :datagram :local-port *in-port* :format :binary))

(setq *osc-receive*
      (process-run-function "osc-receive-process"
        #'(lambda ()
            (loop 
              do (print (setf x (second (osc::decode-message (receive-from *in-socket* 2048)))) #.*terminal-io*)))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(loop repeat 10
  do (progn
       (def-score test1
                  (:key-signature '(c maj)
                                  :time-signature '(4 4)
                                  :tempo (list (* x 3))
                                  :start 1 :end 4)
         
         (part1
          :omn (make-omn :pitch (list (midi-to-pitch x))
                         :length (gen-length-cartesian 1 1 'n 'n 'q '(2 3) '(13 4) '(1 2 3 4 5 6))
                         :span :length)
          :port 4
          :channel 1
          :sound 'gm
          :program 0
          :volume 127))
       
       (live-coding-midi (compile-score 'test1)))
  do (print x)
  do (sleep 3))


(process-kill *osc-receive*)  ;; Prozess wieder anhalten

 

[opmo]

It is no clear how all this work and where is the midi (x) coming from.

[AM]

MIDI KEYBOARD

to

OSCulator (translates MIDI to OSC)

to

OPMO (reading pitch (midi number) and set to variable X)

 

1) evaluate (setq *osc-receive*.......)

2) start/evaluate LOOP-section

3) start LIVE-CODE

4) play your midi-keyboard

 

=> in every cycle of LIVE-CODING the "keyboard-pitch" will be read --- to variable X -> tempo and pitch are changing (by new cycle start)

 

5) stop all, incl.  evaluate (process-kill *osc-receive*)

[JulioHerrlein]

It´s also possible (using MAX or Pure Data) to convert audio impulses to length values using a value in milliseconds as reference for beats and then convert the results to OMN syntax.

 

Nice Solution, Andre !

[AM]

i know, of course, that LISP is not an environment for REALTIME actions (pure data / max would be much more suitable) - so I had to outsmart the system a little to import data (from a modularsynth and other applications) almost "on the fly" to generate a LIVE-SCORE (with the influence of this datas) at the concert/on the stage....

 

maybe i should learn MAX... for more smart-coded REALTIME things

 

 

[JulioHerrlein]

Dear André,

 

Here is a project I did some years ago, with PD and Lilypond. Kind of realtime converter of beats to rhythmic notation.

 

 

[AM]

thanks, julio!!