Comparative form of crackly; more inclined to crackle, producing more crackling sounds, or having more of a crackling texture or appearance.
From 'crackly' (adjective from 'crackle') plus the comparative suffix '-er.' This follows standard English patterns for comparing adjectives describing sounds and textures.
The word 'crackly' perfectly captures audio quality—a 'crackly' radio broadcast is immediately recognizable, and 'cracklier' and 'crackliest' became technical terms that radio engineers and audiophiles used before we had decibel measurements and frequency analysis!
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