Virtual Bass Enhancement Via Music DemixingAudio Samples |
The following audio samples are provided as supplementary material for the article Virtual Bass Enhancement Via Music Demixing, authored by R. Giampiccolo, A. I. Mezza, A. Bernardini, and A. Sarti, and published in IEEE Signal Processing Letters, vol. 30, pp. 908-912, 2023.
The songs considered for the perceptual test are:
- Electronic: Giorgio, By Moroder - Daft Punk. (β1 = 0.8, w1 = 2, β2 = 0.8, w2 = 2)
- Funk: Get Up (I Feel Like Being A) Sex Machine - James Brown. (β1 = 0.8, w1 = 1, β2 = 0.8, w2 = 1.5)
- Pop: Oops!... I Did It Again - Britney Spears. (β1 = 0.9, w1 = 1, β2 = 0.9, w2 = 1)
- Rock: By The Way - Red Hot Chili Peppers. (β1 = 0.9, w1 = 1, β2 = 0.8, w2 = 2)
- Bhangra: Mundian To Bach Ke - Punjabi MC. (β1 = 0.8, w1 = 1, β2 = 0.8, w2 = 2)
The tracks included in the perceptual test are so generated:
- Reference: highpassed version of the reference track at 200 Hz.
- Crossover Network: reference track processed with the algorithm based on the crossover network and highpassed at 200 Hz.
- Moliner et al.: reference track processed with the algorithm proposed by Moliner et al. and highpassed at 200 Hz.
- Proposed Method: reference track processed with the proposed algorithm and highpassed at 200 Hz.
- Anchor: highpassed version of the reference track at 500 Hz.
Audio Samples
Electronic |
Funk |
Pop |
Rock |
Bhangra |
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| Reference | |||||
| Crossover Network | |||||
| Moliner et al. | |||||
| Proposed Method | |||||
| Anchor |
Results of the Perceptual Test
We ran a perceptual test employing a web-based software compliant with different ITU protocols [1]. In particular, we modified the tool for performing a Mean Opinion Score (MOS) test (ITU-T Rec. P.800.1). The listeners were asked first to rate excerpts (12 s long) of the songs listed above on a scale of 1 (Bad) to 5 (Excellent) as far as Basic Audio Quality (BAQ) is concerned (Test 1). Then, they were asked to rate the very same tracks on the same scale as far as bass enhancement is concerned (Test 2).
