This study examines the role of musical experience on listeners’ phoneme judgments across noise conditions. Individuals with 10+ years of musical training were compared with nonmusicians in their use of three acoustic cues in categorizing post-vocalic obstruent voicing: fundamental frequency, vowel duration, and spectral composition in two listening conditions (silence and multitalker babble, MTB). Results demonstrate that musicians display steeper phonemic categorization for coda /t/ and /d/ on the basis of all three cues of interest. Additionally, musicians and nonmusicians show different cue weighting patterns in MTB than in silence. The findings are discussed with reference to their implications for theories of experience-driven plasticity and individual differences in the perceptual organization of phonemes.