A systematic review of the voice-tagging hypothesis of speech-in-noise perception.

The voice-tagging hypothesis claims that individuals who better represent pitch information in a speaker's voice, as measured with the frequency following response (FFR), will be better at speech-in-noise perception. The hypothesis has been provided to explain how music training might improve speech-in-noise perception. This paper reviews studies that are relevant to the voice-tagging hypothesis, including studies on musicians and nonmusicians. Most studies on musicians show greater f0 amplitude compared to controls. Most studies on nonmusicians do not show group differences in f0 amplitude. Across all studies reviewed, f0 amplitude does not consistently predict accuracy in speech-in-noise perception. The evidence suggests that music training does not improve speech-in-noise perception via enhanced subcortical representation of the f0.