[CM] glissandi

[stephane boussuge]

Thanks Henrich,
it is exactly what i need for solve my problem.

thank you very much


stf

Le 2 déc. 2011 à 22:21, Heinrich Taube a écrit :

> not sure what you are trying to do but this plays a note and then  
> bends it.  bend values are just midi  magic numbers: 8192 is no bend,  
> 16383 is max bend 0 is min bend. what a device does to respond to bend  
> values depends on each device -- max might be a whole step or an  
> octave, for example.
> 
> (define (play-and-bend num dur)
>   (process repeat num
>            do
>            (mp:midi :key (between 60 90) :dur 4 :amp .8 :chan 0)
>            (loop for i from 1 to 5
>                  do
>                  (mp:bend :time (* .1 i)
>                           :val (discrete i 1 5 8192 16383)
>                           :chan 0))
>            (mp:bend :time dur :val  8192) ; reset to no bend at end  
> of note
>            (wait dur)))
> 
> (sprout (play-and-bend 1 2) )
> 
> 
> On Dec 2, 2011, at 6:57 AM, stephane boussuge wrote:
> 
>> Hi,
>> i'm trying to do some glissandi but with no success, here's my  
>> attempt, could you help me please ?
>> 
>> ;;; -*- syntax: Lisp; font-size: 16; theme: "Emacs"; -*-
>> 
>> 
>> (define (gliss1 pc oct pbstrt pbend dur chan)
>> (process repeat 1
>>          do
>>          (send "mp:midi" :key (+ pc oct) :dur dur :chan chan)
>>          (process for i from pbstrt to pbend
>>                   do
>>                   (send "mp:bend" :val i :chan chan)
>>                   (wait (/ dur (- pbstrt pbend)))
>>                   )
>>          ))
>> 
>> (sprout (gliss1 0 72 8000 0 12 0))
>> 
>> 
>> ;;une autre maniere de le faire:
>> 
>> (define (glis pbstrt pbend dur chan)
>> (process for i from pbstrt to pbend
>>                   do
>>                   (send "mp:bend" :val i :chan chan)
>>                   (wait (/ dur (- pbstrt pbend)))
>>                   ))
>> 
>> 
>> (define (gliss2 pc oct pbstrt pbend dur chan)
>> (process repeat 1
>>          with p1 = pbstrt
>>          with p2 = pbend
>>          do
>>          (send "mp:midi" :key (+ pc oct) :dur dur :chan chan)
>>          (sprout (glis p1 p2 dur chan))
>>          ))
>> 
>> (sprout (gliss2 0 60 8000 0 12 0))
>> 
>> (define (glistest pbstrt pbend dur chan)
>> (process for i from pbstrt to pbend
>>                   do
>>                   (print i)
>>                   (wait (/ dur (- pbstrt pbend)))
>>                   ))
>> 
>> (sprout (glistest 1000 0 12 0))
>> 
>> 
>> 
>> Stéphane Boussuge
>> s_boussuge at yahoo.fr
>> www.stephaneboussuge.blogspot.com
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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> 
> 
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Stéphane Boussuge
s_boussuge at yahoo.fr
www.stephaneboussuge.blogspot.com









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