noisy

This word carries a strong negative bias, implying that the sound is unwanted, disruptive, or irritating. While loud describes the volume, noisy describes the quality of the sound as an annoyance or a disturbance. It suggests a lack of peace and quiet. In technical contexts, such as electronics or photography, the term refers to unwanted interference or random variations in a signal. This creates a visual or auditory grain that obscures the clear, intended information, mirroring the way a noisy room obscures a conversation.