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fix: ensure audio array is mono and maintain float32 dtype in extract_audio_and_text function #9

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Merged
karamouche merged 1 commit into from
Jun 5, 2026
Merged

fix: ensure audio array is mono and maintain float32 dtype in extract_audio_and_text function #9

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6 changes: 5 additions & 1 deletion noisekit/dataset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -69,11 +69,15 @@ def extract_audio_and_text(sample: dict) -> tuple[np.ndarray, int, str]:
else:
raise ValueError("Audio sample has neither 'bytes' nor 'path'.")

array = np.asarray(array, dtype=np.float32)
if array.ndim == 2:
array = array.mean(axis=1) # (samples, channels) → (samples,) for mono-only metrics

text = (
sample.get("text")
or sample.get("sentence")
or sample.get("transcription")
or sample.get("normalized_text")
or ""
)
return np.asarray(array, dtype=np.float32), int(sr), str(text).strip()
return array, int(sr), str(text).strip()