A fluency aid 1 for users with a stammer, stutter or other speech impediment in logopedic therapy provides Altered Auditory Feedback (AAF, 30) based on the detected voice in a first mic signal 10, which may be Delayed, Frequency Altered or Masked Auditory Feedback (DAF, FAF or MAF). The second mic signal 20 may pick up background noise and bypass the AAF generator. The AAF may be initiated or faded out upon detecting a first mic signal, or output at a volume dependent on that of the detected voice or background noise, and a metronomic pacing click 40 may accompany the feedback.
Fluency aid