Add ADSR envelope.

noisicaa/node_lib/adsr/audio.dsp

@@ -0,0 +1,33 @@
+/*
+ * @begin:license
+ *
+ * Copyright (c) 2015-2019, Benjamin Niemann <pink@odahoda.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * @end:license
+ */
+
+declare input0_name "gate";
+
+en = library("envelopes.lib");
+os = library("oscillators.lib");
+
+at = hslider("attack", 0.05, 0.0, 10.0, 0.001);
+dt = hslider("decay", 0.05, 0.0, 10.0, 0.001);
+sl = hslider("sustain", 0.5, 0.0, 1.0, 0.001);
+rt = hslider("release", 0.5, 0.0, 10.0, 0.001);
+
+process = en.adsr(at, dt, sl, rt);

noisicaa/node_lib/adsr/description.yaml

@@ -0,0 +1,5 @@
+uri: builtin://adsr
+audio_class_uri: node://adsr
+display_name: Envelope (ADSR)
+ui:
+    body_qml: noisicaa/node_lib/adsr/ui.qml

noisicaa/node_lib/adsr/wscript

@@ -0,0 +1,22 @@
+# @begin:license
+#
+# Copyright (c) 2015-2021, Ben Niemann <pink@odahoda.de>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# @end:license
+
+def build(ctx):
+    ctx.noise_faust_node()