Listening Conditions Assignment
Dr. Bose is psychoacoustics who works in a lab at a headphone company. One of her jobs is to assess new headphone designs and to determine listener preferences. She compared three new headphones that used new noise reduction algorithms (NR1, NR2, & NR3) to a headphone that used the company’s current noise reduction algorithm (Current).
32 participants were randomly assigned to one of the four listening conditions. Participants listened to 30 1-minute samples of music from assorted genres and rated the reproduction quality of each sample using a 9-point rating scale (1=poor quality sound; 9=excellent sound). The mean ratings are shown on the right. Did Dr. Bose find any differences in listeners’ ratings of music quality among the different noise reduction algorithms? Get Social Science help today