title: Directional audiometry. II. The influence of azimuth on the perception of speech.
mesh_terms: D000328:Adult; D000367:Age Factors; D001299:Audiometry; D001307:Auditory Perception; D001309:Auditory Threshold; D006320:Hearing Tests; D006801:Humans; D008875:Middle Aged; D009622:Noise; D013060:Speech