[PD] readsf re-blocked up-sampled

Miller Puckette msp at ucsd.edu
Sat Mar 3 05:26:02 CET 2018


Here's a quick test I made.. it seems to work OK:

#N canvas 575 153 544 389 10;
#N canvas 167 97 714 533 sr 1;
#X obj 142 58 block~ 4096 1 64;
#X obj 92 251 osc~ 6400;
#X obj 92 272 tabwrite~ foo;
#X obj 186 243 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144
-1 -1;
#X obj 319 228 readsf~;
#X msg 317 146 open /tmp/test.wav;
#X msg 343 197 start;
#X obj 357 175 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144
-1 -1;
#X obj 317 265 tabwrite~ foo;
#X obj 427 307 timer;
#X floatatom 427 328 5 0 0 0 - - -, f 5;
#X obj 331 396 array define foo 1e+06;
#X obj 92 342 soundfiler;
#X msg 91 319 write /tmp/test.wav foo;
#X msg 321 107 \; foo const 0;
#X text 67 203 this is to make the soundfile /tmp/test.wav, f 23;
#X text 324 55 Then clear out the array \, open the file \, and read
it back in (1e6 points in 326 msec at 48K sample rate);
#X connect 1 0 2 0;
#X connect 3 0 2 0;
#X connect 4 0 8 0;
#X connect 4 1 9 1;
#X connect 5 0 4 0;
#X connect 6 0 4 0;
#X connect 7 0 6 0;
#X connect 7 0 8 0;
#X connect 7 0 9 0;
#X connect 9 0 10 0;
#X connect 13 0 12 0;
#X restore 226 209 pd sr;

cheers
Miller

On Wed, Feb 28, 2018 at 12:12:49PM +0100, Amur Tet wrote:
> Dear list,
> 
> I am trying to put a [readsf~] inside a sub re-blocked and up-sampled
> following a previous conversation[1], using [block~]. Anyway, I don't get
> the correct up-sampling factor. Assuming the patch at sr = 44100 hz, the
> same for the audio file, blocksize 64 samples, I tried various
> configurations with changing blocksize, overlap and up-sampling factor but
> without obtaining the wanted result. Any idea? Osx, Pd vanilla 47.1,
> quadriphonic soundfile.
> 
> Best,
> Marco Matteo Markidis
> 
> [1]: soundfiler alternative, https://www.mail-archive.com/
> search?l=pd-list at lists.iem.at&q=subject:%22Re%5C%3A+%5C%
> 5BPD%5C%5D+soundfiler+alternative%5C%3F%22&o=newest&f=1
> 
> -- 
> Ho cambiato l'indirizzo email in mm.markidis at autistici.org . Se non รจ un
> problema, scrivimi a questo nuovo indirizzo email.
> 
> I changed my email address in mm.markidis at autistici.org . If it is ok for
> you, please write me to this new email address.

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