+Digital noise is the unwanted, random variations that corrupt [digital media](/wiki/digital_media) and [signals](/wiki/signal). It manifests as grain in images, hiss in audio, or errors in data, often arising from imperfections during capture, processing, or transmission.
+## See also
+- [Image Processing](/wiki/image_processing)
+- [Audio Processing](/wiki/audio_processing)
+- [Signal Filtering](/wiki/signal_filtering)
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