| NOUN | event | background noise, ground noise | extraneous noise contaminating sound measurements that cannot be separated from the desired signal |
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| Meaning | extraneous noise contaminating sound measurements that cannot be separated from the desired signal. | |
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| Synonym | ground noise | |
| Narrower | surface noise | noise / noise produced by the friction of the stylus of a record player moving over the rotating record |
| Broader | background, background signal | extraneous signals that can be confused with the phenomenon to be observed or measured |
| Spanish | ruido de fondo | |
| Catalan | soroll | |
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