fixed sample rate issue

config-48hz.yaml

@@ -0,0 +1,27 @@
+audio_visualization:
+  audio_visual_span: 1
+  cmap: magma
+  max_spectrogram_width: 65000
+  playhead_position: 0.5  # Centered horizontally
+  playhead_rgba: [255,255,255,192] # white, slightly transparent
+  playhead_width: 2 # Assuming pixels for thick
+  playhead_section_rgba : [0,0,0,0]
+  seconds_in_view: 300
+  profiling_chunk_duration: 900
+mel_spectrogram:
+  db_high: 0
+  db_low: -80
+  f_high: 22000
+  f_low: 20
+  hop_length: 512
+  n_fft: 2048
+  n_mels: 400
+video:
+  frame_rate: 30
+  height: 200
+  width: 800
+overlays:
+  frequency_axis:
+      freq_hz : [100, 1000, 3000, 5000, 8000]
+      axis_position: 0.5  # Centered horizontally
+      axis_rgba: [255,255,255,192] # white, slightly transparent

melspec-to-video.py

@@ -91,7 +91,7 @@ def load_and_resample_mono(params: Params) -> Tuple[np.ndarray, int]:
     start_time = params.get("start_time", 0)
     duration = params.get("duration", None)
     audio_fsp = params["input"]
-    sample_rate = params["sr"]
+    sample_rate = params.get("sr", None)
 
     # Determine the total duration of the audio file if duration is not explicitly provided
     if duration is None:
@@ -198,7 +198,8 @@ def profile_audio(params: Params) -> dict[str, Any]:
 
     audio_fsp = params["input"]
     logging.info(f"Audio file in: {audio_fsp}")
-    target_sr = params["sr"]
+
+    target_sr = params.get("sr", None)
     logging.info(f"Target Sample Rate: {target_sr}")
 
     # Configuration for Mel spectrogram
@@ -268,7 +269,9 @@ def generate_spectrograms(
     max_spectrogram_width = audiovis.get("max_spectrogram_width", 1000)
     logging.info(f"max_spectrogram_width: {max_spectrogram_width}")
 
-    target_sample_rate = params["sr"]
+    target_sample_rate = params.get("sr", None)
+    if not target_sample_rate:
+        target_sample_rate = project["audio_metadata"].get("sample_rate", 22050)
 
     samples_per_pixel = (audiovis["seconds_in_view"] * target_sample_rate) / video[
         "width"
@@ -752,6 +755,7 @@ def main():
         "--sr",
         help="Audio sample rate. Overrides the source sample rate.",
         type=int,
+        default=None,
     )
 
     parser.add_argument(
@@ -771,6 +775,9 @@ def main():
         default="output.mp4",
     )
 
+    # we default bool args to None, so they are falsy but not == False
+    # if it was False the defautl behavioir or argparse, it would always overwrite config yaml
+
     parser.add_argument(
         "--overwrite",
         action="store_true",