Initial commit - Radio Panel v0.1

audio_test.py

@@ -0,0 +1,68 @@
+# audio_test.py
+import soundfile as sf
+import numpy as np
+import jack
+import sys
+
+def test_audio(filepath):
+    client = jack.Client("AudioTest")
+    sr = client.samplerate
+    
+    out_L = client.outports.register("test_L")
+    out_R = client.outports.register("test_R")
+    
+    # Load file
+    try:
+        data, file_sr = sf.read(filepath, always_2d=True)
+        data = data.T.astype(np.float32)
+        print(f"✓ Loaded: {data.shape} at {file_sr}Hz")
+        if file_sr != sr:
+            print(f"⚠ Sample rate mismatch: file={file_sr} JACK={sr}")
+            print(f"  Install librosa for auto-resampling")
+    except Exception as e:
+        print(f"✗ Load failed: {e}")
+        sys.exit(1)
+    
+    position = [0]
+    playing = [True]
+    
+    def callback(frames):
+        out_L.get_array().fill(0.0)
+        out_R.get_array().fill(0.0)
+        
+        if playing[0]:
+            pos = position[0]
+            end = min(pos + frames, data.shape[1])
+            chunk = data[:, pos:end]
+            n = chunk.shape[1]
+            
+            out_L.get_array()[:n] = chunk[0]
+            out_R.get_array()[:n] = chunk[1] if data.shape[0] > 1 else chunk[0]
+            
+            position[0] += n
+            if position[0] >= data.shape[1]:
+                playing[0] = False
+                print("✓ Playback complete")
+    
+    client.set_process_callback(callback)
+    client.activate()
+    
+    print(f"Playing {filepath}")
+    print("Wire 'AudioTest:test_L/R' in qpwgraph to hear audio")
+    print("Press Ctrl+C to stop")
+    
+    import time
+    try:
+        while playing[0]:
+            time.sleep(0.1)
+    except KeyboardInterrupt:
+        pass
+    
+    client.deactivate()
+    client.close()
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python audio_test.py /path/to/file.flac")
+        sys.exit(1)
+    test_audio(sys.argv[1])