configurable audio device

.vscode/launch.json

@@ -11,7 +11,7 @@
             "program": "beamshow.py",
             "console": "integratedTerminal",
             "justMyCode": true,
-            "args": ["-w","-b"]
+            "args": ["-w","-b","-a","Notepad"]
         }
     ]
 }

beamshow.py

@@ -21,6 +21,7 @@ def print_displays() -> None:
 class Beamshow:
     def __init__(
         self,
+        audio_device_name: str,
         render3d: bool,
         window: bool,
         trails: bool,
@@ -45,7 +46,7 @@ class Beamshow:
 
         pg.display.init()
         self.window, self.background = self.initialize()
-        self.audio = AudioProcess()
+        self.audio = AudioProcess(audio_device_name)
 
     def initialize(self) -> Tuple[pg.Surface, pg.Surface]:
         recreate_effect = (
@@ -278,6 +279,14 @@ def app_main() -> None:
     argparser = ArgumentParser(
         description="beamshow - Render a light show for a video projector"
     )
+    argparser.add_argument(
+        "-a",
+        "--audio",
+        metavar="NAME",
+        type=str,
+        required=True,
+        help="The audio device to use. Can be any substring",
+    )
     argparser.add_argument(
         "--3d",
         dest="render3d",
@@ -323,6 +332,7 @@ def app_main() -> None:
         print_displays()
 
     show = Beamshow(
+        audio_device_name=args.audio,
         render3d=args.render3d,
         window=args.window,
         trails=args.trails,

util/audio.py

@@ -17,13 +17,13 @@ def find_audio_device(p: pa.PyAudio, api: int, name: str) -> dict:
 
 
 class AudioProcess:
-    def __init__(self):
+    def __init__(self, device_name: str):
         self.pa = pa.PyAudio()
 
         self.win_s = 1024
         self.hop_s = self.win_s // 2
 
-        i_dev = find_audio_device(self.pa, pa.paWASAPI, "Notepad")
+        i_dev = find_audio_device(self.pa, pa.paWASAPI, device_name)
         self.rate = int(i_dev["defaultSampleRate"])
         self.a_source = self.pa.open(
             rate=self.rate,