score-player latency??

[o_e]

Hi,

 

When I run the following code I get a terrible latency between the voices. Do I miss something or is it a bug?

 

Thanks!

 

(setf pattern (gen-repeat 50 '(s e4 fs4 b4 cs5 d5 fs4 e4 cs5 b4 fs4 d5 cs5)))
(setf tempo (mclist (gen-integer 10 70) (gen-repeat 100 1)))

(def-score score1
           (
            :key-signature 'chromatic
            :time-signature '(1 4)                             
            :tempo tempo
            )
  
  (inst1 :omn pattern
         :sound 'gm
         :channel 1
         :program 0
         :pan 127))

(def-score score2
           (
            :key-signature 'chromatic
            :time-signature '(1 4)                             
            :tempo tempo
            )
  
  (inst1 :omn pattern
         :sound 'gm
         :channel 2
         :program 12
         :pan 1))



(progn
  (score-player 'score1)
  (score-player 'score2))

 

[opmo]

Possibly something to do with your midi setup.

The SCORE-PLAYER is no an official OM function, it was written for Andre with all the limitations - pure hack

 

[AM]

i am very thankful for the HACK. lisp is not a language for real-time things, but for me it suits the approximate simulation perfectly!! thanx janusz!! 

 

but: you can try out how it is not to evaluate everything at once, step by step, maybe then there will be less LATENCY?

[o_e]

Thanks for the super quick answer!

So you don't have latency?

I've tried it both with Vienna Ensemble and GM-MIDI Player- same result

 

@Andre: Can you explain what do you mean by evaluating step by step, please?

Did you tried the example that I posted?

 

 

[AM]

step by step => every code-line for itself cmd-E!

i have also some LATENCY with conTimbre-player... but that's LISP in realtime

 

 

the score player wasn't even intended to play things in parallel (i made a HACK from a HACK :-)). for precise POLYTEMPO things it is best to work via OSC and an external PLAYER (that's how I do it). I only need it in OPMO for sketching

Edited February 6, 2022 by AM

[o_e]

 

That evaluating one after the other def-score did the trick, thank you very much!

I like these Conlon Nancarrow possibilities a lot 

[AM]

if you are interested, i could show you some SOFTWARE to calculate really special tempo curves, in a very handy way. just write me a PM....