Figure 25
From: An Overview of the Coding Standard MPEG-4 Audio Amendments 1 and 2: HE-AAC, SSC, and HE-AAC v2
MUSHRA listening test results for two sites (black and gray) showing mean grading and 95% confidence interval for HE-AAC at 24 kbps, 32 kbps, and HE-AAC v2 at 24 kbps (from [ 59 ]).