audio and transcript

cht/config.py

@@ -19,3 +19,12 @@ SCENE_THRESHOLD = 0.10  # 0-1, lower = more sensitive; 0.1 catches slide/window
 
 # Segment recording
 SEGMENT_DURATION = 60  # seconds per .ts segment
+
+# Audio extraction
+AUDIO_EXTRACT_INTERVAL = 3    # seconds between extraction cycles
+AUDIO_SAFETY_MARGIN = 2       # seconds safety margin (matches scene detector)
+WAVEFORM_BUCKET_MS = 50       # milliseconds per waveform peak bucket
+
+# Transcription
+WHISPER_MODEL = "small"        # "small" for speed, "medium" for accuracy
+WHISPER_DEVICE = "cuda"        # "cuda" or "cpu"