Lasse Penttinen
4 Aug 2003 11:50
Recently RareWares organized a public lossy audio compression listening test. The formats and encoders in this test were: AAC(Apple QuickTime by Dolby), LAME MP3,MusePack, OGG Vorbis, WMA Pro, Blade MP3.
How to interpret the plots: Each plot is drawn with the five codecs on the x axis and the ratings given (1.0 through 5.0) on the y axis. N is the number of listeners used to compute the means (average ratings) and 95% confidence intervals. The mean rating given to each codec is indicted by the middle point of each vertical line segment, and the value is printed next to it. Each vertical line segment represents the 95% confidence interval (using ANOVA analysis) for each codec.