[PD] readanysf_duration_speed

[oskoff lovich]

Hi August,

> 	Cool.  Abuse it, please.    But, what do you mean by crashing dsp?
> 	Ideally, readanysf~ shouldn't crash, ever.  Please let me know if it
> 	does.
>
> 	I'm not sure I understand you correctly.  Does it crash PD all
> 	together, or does it lock up your DSP?   The later could happen if
> 	your computer is too slow, I imagine.

Sorry for confusing; the crashed was with a lot readanysf~ at high
speed and a lot of other proccess running in extreme and for shure
that something i did wrong.... it is irrelevant this crashed....

But i test readanysf in more isolated conditions:

1) - Pd running at 44100 samplerate and default block size
    - Audio file 44100 stereo
    -readanysf~ with default creation arguments (samples per frame in
the internal buffer = 24)

   in this case working  in a good way  max speed= 20 or 25  up of this valours
   starting to "lock up" DSP and the loop mode doesn't work  and I have to
   push "stop" and then "play" but then start  at speed=1.......

2)  -with the same Pd samplerate  and audio file
     -readanysf~ with (sample per frame in the internal buffer=32 and
a blocksize= 256)
                              the same that in the help file..

    working much better i can play at speed=100-120

         -from speed=1 to speed=60 in this range it works perfect also
with the loop mode on
         -from speed=60 to speed=120 it is  more unestable, with some
glitches, and sometimes
           "lock up" DSP, when "lock up" the same that before ( the
loop mode doesn't work
             and I have to  push "stop" and then "play" and start to
play but at speed=1.......
             and "the procesor" go to 50/60%...



 I am in Ubuntu 9.10 Karmic Koala

          acer aspire 1810TZ
          Intel Pentium processor  SU4100    ( for shure this is not so fast)
          4GB ram

  readanysf~ 0.36




 oscar








2010/10/12, august <august at alien.mur.at>:
>>   Hi August,
>>
>>   thanks for the clarifications and the formula..
>>
>>   only for comments; I like to force readanysf~ with
>>   high valors to the speed i mean 20 o 25 ( up of these valors crash the
>> dsP:)
>
> 	Cool.  Abuse it, please.    But, what do you mean by crashing dsp?
> 	Ideally, readanysf~ shouldn't crash, ever.  Please let me know if it
> 	does.
>
> 	I'm not sure I understand you correctly.  Does it crash PD all
> 	together, or does it lock up your DSP?   The later could happen if
> 	your computer is too slow, I imagine.
>
> 	And, just so you know, there is an upper and lower limit to how much
> 	you can speed up or slow down a file.
>
> 	It can be as high as 256 or as low as 1/256 .
>
>>   It generate interesting textures (with longer files)
>>   Did it some kind of time-stretching when its running with this high
>> speeds ??  or something similar..
>
> 	It simply uses libresample to resample the audio file.
>
> 	So, yes, it "stretches" or "shrinks" the audio.
>
>
> 	-a.
>


-- 
>>>http://noconventions.mobi/noish