Hi Georg, hi list,
Georg Werner wrote:
> FYI, your patch works with -nogui and winxp even without the [switch~].
> Pd version 0.41.4-extended-20090509
Thank you so much for this revealing contribution. I can indeed confirm
that Windows XP seems to be free from the -nogui audio initialisation
problems described earlier, including also the "[loadbang]->[;pd dsp 1("
problem.
This is reflected in the attached example "nogui_win.pd", which works
for me with (and without) the -nogui flag under Windows XP, both with Pd
extended 0.41.4 and Pd vanilla 0.42-5. Under Debian, however, it works
only when *not* using -nogui, both with Pd vanilla 0.41.4 and vanilla
0.42-5.
> but if i understand correctly you would have to turn off [switch~] by a
> loadbang and turn it on with a delay.
Thanks for pointing this out, but I cannot confirm this workaround to
work under Debian. This is reflected in the attached example
"nogui_linux.pd", which keeps failing to initialize audio correctly with
Debian and -nogui (but plays fine under Windows XP and -nogui).
best,
flo.H
#N canvas 176 88 564 588 10;
#X obj 140 381 dac~;
#X obj 147 140 loadbang;
#X obj 140 175 metro 1000;
#X obj -23 386 loadbang;
#X obj -23 413 del 1000;
#X obj 61 173 osc~ 220;
#X obj 69 273 *~;
#X msg 88 222 1 \, 0 100;
#X obj 88 247 line~;
#X text 235 368 Florian Hollerweger \, 2010;
#X obj 140 352 *~;
#X obj 213 316 dbtorms;
#X obj 213 268 loadbang;
#X msg 213 292 80;
#X obj 170 242 delread~ line 350;
#X obj -5 354 delwrite~ line 580;
#X text 257 294 Master volume;
#X obj 169 354 *~;
#X msg 172 215 500;
#X obj 63 499 switch~;
#X text 45 408 <- HACK: [del 1000] also required due to audio initialization
problems with -nogui;
#X obj 63 448 loadbang;
#X msg 63 475 0;
#X obj 101 473 r switch;
#X msg -23 441 \; pd dsp 1 \; switch 1;
#X text -19 -41 -nogui bug: This patch creates a test signal on the
left channel once a second \, which is delayed through [delwrite~]
and [delread~] and then repeated on the right channel 500ms later.
-nogui bug: This patch creates a test signal on the left channel once
a second \, which is delayed through [delwrite~] and [delread~] and
then repeated on the right channel 500ms later. The [switch~] object
is supposed to serve as a workaround for the audio initialization problems
with Pd (both vanilla 0.41.4 and vanilla 0.42-5) demonstrate at least
under Debian GNU/Linux when started with the -nogui flag. However \,
the patch keeps failing for me under Debian and with -nogui \, although
it works fine under Windows XP and -nogui.;
#X text 121 495 <- This does not seem to solve the -nogui audio init
problems either (also not if the order of turning on dsp and switch
is reversed in the message box on the left).;
#X connect 1 0 2 0;
#X connect 1 0 18 0;
#X connect 2 0 7 0;
#X connect 3 0 4 0;
#X connect 4 0 24 0;
#X connect 5 0 6 0;
#X connect 6 0 15 0;
#X connect 6 0 10 0;
#X connect 7 0 8 0;
#X connect 8 0 6 1;
#X connect 10 0 0 0;
#X connect 11 0 10 1;
#X connect 11 0 17 1;
#X connect 12 0 13 0;
#X connect 13 0 11 0;
#X connect 14 0 17 0;
#X connect 17 0 0 1;
#X connect 18 0 14 0;
#X connect 21 0 22 0;
#X connect 22 0 19 0;
#X connect 23 0 19 0;
#N canvas 595 75 450 478 10;
#X obj 140 381 dac~;
#X obj 147 140 loadbang;
#X obj 140 175 metro 1000;
#X obj -23 386 loadbang;
#X obj 61 173 osc~ 220;
#X obj 69 273 *~;
#X msg 88 222 1 \, 0 100;
#X obj 88 247 line~;
#X text 235 368 Florian Hollerweger \, 2010;
#X obj 140 352 *~;
#X obj 213 316 dbtorms;
#X obj 213 268 loadbang;
#X msg 213 292 80;
#X obj 170 242 delread~ line 350;
#X obj -5 354 delwrite~ line 580;
#X text 257 294 Master volume;
#X obj 169 354 *~;
#X msg 172 215 500;
#X msg -23 410 \; pd dsp 1;
#X text -10 8 -nogui bug: This patch creates a test signal on the left
channel once a second \, which is delayed through [delwrite~] and [delread~]
and then repeated on the right channel 500ms later. Under Debian (and
Pd vanilla 0.41.4 or vanilla 0.42-5) \, when started with -nogui \,
the delay line is initialized before the samplerate is set \, resulting
in broken audio output. Under Windows XP (and Pd vanilla 0.42-5 or
extended 0.41.4) \, the patch works fine with -nogui as well.;
#X connect 1 0 2 0;
#X connect 1 0 17 0;
#X connect 2 0 6 0;
#X connect 3 0 18 0;
#X connect 4 0 5 0;
#X connect 5 0 14 0;
#X connect 5 0 9 0;
#X connect 6 0 7 0;
#X connect 7 0 5 1;
#X connect 9 0 0 0;
#X connect 10 0 9 1;
#X connect 10 0 16 1;
#X connect 11 0 12 0;
#X connect 12 0 10 0;
#X connect 13 0 16 0;
#X connect 16 0 0 1;
#X connect 17 0 13 0;
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