Differences

This shows you the differences between two versions of the page.

--- supercollider [2024/09/15 19:30] – discord
+++ supercollider [2025/03/05 19:10] (current) – smj-edison
@@ Line 1: / Line 1: @@
 ====== Directions ======
-Use the ''jmg/supercollider'' branch until it's merged into main.
+Use the ''jmg/supercollider'' folk branch until it's merged into main.
   * ''git checkout jmg/supercollider''
-Install ''supercollider'', the alsa utilities, and ''tcl-udp'' through apt.
+Install ''supercollider'', the alsa utilities, ''ghc'', and ''tcl-udp'' through apt.
-  * ''sudo apt install supercollider alsa-utils tcl-udp''
+  * ''sudo apt install supercollider alsa-utils tcl-udp ghc''
 Add yourself to the audio group and reboot.
@@ Line 17: / Line 17: @@
   * This is a bit more involved.
-  * Start by running ''aplay -L''.
+  * Run this command:
-  * You'll get a huge list of audio device. Try and find one that says something about HD-Audio, being generic, and being analog. You'll want the string that looks like ''hw:CARD=Generic_1,DEV=0'' and starts with ''hw''.
+    * <file bash>aplay -L | grep -E 'hw:CARD=.*,DEV=0' | sed -n 's/^\(hw:CARD=.*,DEV=0\).*$/\1/p'</file>
-  * Now, go to  ''virtual-programs/music.folk'' and look for the big block of if-elseif checks, and add your own instance
+     * Or, manually:
+       * Start by running ''aplay -L''.
+       * You'll get a huge list of audio device. Try and find one that says something about HD-Audio, being generic, and being analog. You'll want the string that looks like ''hw:CARD=Generic_1,DEV=0'' and starts with ''hw''.
+    * Now, go to  ''virtual-programs/music.folk'' and look for the big block of if-elseif checks, and add your own instance
     * Add a section that looks like this:
     * <file tcl>
@@ Line 29: / Line 32: @@
 [... rest of ifs]
 </file>
+  * Install the SuperDirt library by running <file bash>echo 'include("SuperDirt");' | QT_QPA_PLATFORM=offscreen sclang</file>
   * It should be set up!
@@ Line 42: / Line 46: @@
 <file tcl>
 set noteSemitones [dict create A 0 B 2 C 3 D 5 E 7 F 8 G 10]
-set modSemitones [dict create "#" 1 b -1 "" 0]
+set accidentalSemitones [dict create "#" 1 b -1 "" 0]
 When /player/ wishes to play note /note/ {
-    set noteName [string index $note 0]
+    regexp {^([A-Ga-g])([0-9]?)([#b]?)$} $note -> note octave accidental
-    set noteMod [string index $note 1]
+    set noteSt [dict get $noteSemitones $note]
-    set noteSt [dict get $noteSemitones $noteName]
+    set modSt [dict get $accidentalSemitones $accidental]
-    set modSt [dict get $modSemitones $noteMod]
     set st [expr { $noteSt + $modSt }]
-    set noteFreq [expr { 440.0 * (2.0 ** ($st / 12.0)) }]
+    set noteFreq [expr { 440.0 * (2.0 ** (($octave == "" ? 0 : ($octave - 4)) + $st / 12.0)) }]
-    Wish $player is labelled "noteFreq is $noteFreq"
     set soundName note-$player-$note
     Wish Supercollider sound $soundName attr freq is $noteFreq
@@ Line 57: / Line 59: @@
         arg freq = 440.0;
         var envgen;
-        envgen = EnvGen.kr(Env.adsr(sustainLevel: 0.2));
+        envgen = EnvGen.kr(Env.adsr(sustainLevel: 0.1));
-        Pan2.ar(SinOsc.ar(freq) * 0.5 * envgen, 0.0);
+        Pan2.ar(Saw.ar(freq) * 0.5 * envgen, 0.0);
     }
+    When the clock time is /t/ {
+        When /nobody/ claims $soundName has start time /startTime/ {
+            Hold $soundName { Claim $soundName has start time $t }
+        }
+        When $player has region /r/ & $soundName has start time /startTime/ {
+            # set radius [expr { max([region width $r], [region height $r])/2 + 10 }]
+            set radius [expr { ($t - $startTime) * 500 }]
+            Wish $player draws a circle with radius $radius color red
+        }
+    }
+    On unmatch { Hold $soundName { } }
 }
 </file>
@@ Line 91: / Line 105: @@
 s = t;
 </file>
+TODO: add audio debugging page that can be printed?