david/uno-q-audio-synth
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fix: replace hsl with loadbang floats for headless Pd
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hsl GUI objects don't initialize in -nogui mode, causing
cutoff at 0 Hz and volume at 0 → no audio output.
Use loadbang + float for headless-safe initialization.
This commit is contained in:
David Gwilliam
2026-06-24 16:24:25 -07:00
parent c0af9c6b6f
commit 8d3666cdaa
2 changed files with 21 additions and 12 deletions
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pd/synth.pd
+10 -6
View File
@@ -27,9 +27,11 @@
#X obj 180 460 *~; #X obj 180 460 *~;
#X obj 320 460 *~; #X obj 320 460 *~;
#X obj 250 530 dac~; #X obj 250 530 dac~;
#X obj 350 330 hsl 128 15 100 18000 10000 0 0 0 empty Cutoff -2 -8 0 10 -262144 -1 -1 7200 1; #X obj 350 300 loadbang;
#X obj 350 430 hsl 128 15 0 100 40 0 0 0 empty Volume -2 -8 0 10 -262144 -1 -1 7200 1; #X obj 350 320 float 10000;
#X obj 350 460 / 100; #X obj 350 400 loadbang;
#X obj 350 420 float 80;
#X obj 350 450 / 100;
#X connect 0 0 1 0; #X connect 0 0 1 0;
#X connect 0 1 1 1; #X connect 0 1 1 1;
#X connect 1 0 2 0; #X connect 1 0 2 0;
@@ -58,8 +60,10 @@
#X connect 14 0 16 0; #X connect 14 0 16 0;
#X connect 16 0 24 1; #X connect 16 0 24 1;
#X connect 24 0 25 0; #X connect 24 0 25 0;
#X connect 27 0 23 1; #X connect 27 0 28 0;
#X connect 28 0 29 0; #X connect 28 0 23 1;
#X connect 29 0 25 1; #X connect 29 0 30 0;
#X connect 30 0 31 0;
#X connect 31 0 25 1;
#X connect 25 0 26 0; #X connect 25 0 26 0;
#X connect 25 0 26 1; #X connect 25 0 26 1;
scripts/gen_synth_pd.py
+11 -6
View File
@@ -82,12 +82,17 @@ def gen():
connect(c, env, 0, amp, 1) connect(c, env, 0, amp, 1)
connect(c, amp, 0, panscale, 0) connect(c, amp, 0, panscale, 0)
# ── Controls ── # ── Controls (headless-safe: loadbang-initialized floats, not hsl) ──
cutoff = Obj(350, 330, "hsl 128 15 100 18000 10000 0 0 0 empty Cutoff -2 -8 0 10 -262144 -1 -1 7200 1") lb_cut = Obj(350, 300, "loadbang")
volume = Obj(350, 430, "hsl 128 15 0 100 40 0 0 0 empty Volume -2 -8 0 10 -262144 -1 -1 7200 1") float_cut = Obj(350, 320, "float 10000")
div = Obj(350, 460, "/ 100") connect(c, lb_cut, 0, float_cut, 0)
connect(c, cutoff, 0, filt, 1) connect(c, float_cut, 0, filt, 1)
connect(c, volume, 0, div, 0)
lb_vol = Obj(350, 400, "loadbang")
float_vol = Obj(350, 420, "float 80")
div = Obj(350, 450, "/ 100")
connect(c, lb_vol, 0, float_vol, 0)
connect(c, float_vol, 0, div, 0)
connect(c, div, 0, panscale, 1) connect(c, div, 0, panscale, 1)
# ── Output ── # ── Output ──