EURASIP Journal on Audio, Speech, and Music Processing

Table 6 PEAQ test scores for 32-kbps MP3 enhancement.

From: Quality Enhancement of Compressed Audio Based on Statistical Conversion

	Rock	Symphony	Electronic	Jazz	Flute	Violin	Bass	Piano	Harp	Drums
32 kbps MP3	−3.5	−3.6	−3.4	−3.6	−3.6	−3.6	−3.4	−2.3	−2.4	−3.4
64 kbps MP3	−1.3	−1.8	−1.2	−1.5	−2.1	−1.5	−1.9	−1.2	−1.8	−1.6
Enhanced	−1.2	−1.6	−1.4	−1.7	−2.0	−1.6	−2.0	−1.4	−1.8	−1.4

ODG scores for the 32-kbps MP3 enhancement scenario. The range is from −4 ("very annoying") to 0 ("imperceptible"). The reference is always the uncompressed file.

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