+Signal filtering sculpts an [electronic signal](/wiki/electronic_signal) by enhancing desired frequencies or suppressing unwanted noise. This essential process refines raw data, making information clearer and more useful, often through [digital signal processing](/wiki/digital_signal_processing).
+## See also
+- [Noise Reduction](/wiki/noise_reduction)
+- [Frequency](/wiki/frequency)
+- [Data](/wiki/data)
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