Multimedia File 1: In this example, an adult female talker is saying the word “dragon” in the presence of speech-shaped noise. Competing speech-shaped noise is expected produce energetic masking, which degrades the neural representation of the target word.

Multimedia File 2: In this example, an adult female talker is saying the word “dragon” in the presence of speech streams produced by two different adult female talkers. A small number of competing speech streams is expected to produce both energetic and informational masking. Informational masking has been associated with a failure to perform auditory scene analysis