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NU-Wave: A Diffusion Probabilistic Model for Neural Audio Upsampling. (arXiv:2104.02321v2 [eess.AS] CROSS LISTED)
June 27, 2022, 1:11 a.m. | Junhyeok Lee, Seungu Han
cs.LG updates on arXiv.org arxiv.org
In this work, we introduce NU-Wave, the first neural audio upsampling model
to produce waveforms of sampling rate 48kHz from coarse 16kHz or 24kHz inputs,
while prior works could generate only up to 16kHz. NU-Wave is the first
diffusion probabilistic model for audio super-resolution which is engineered
based on neural vocoders. NU-Wave generates high-quality audio that achieves
high performance in terms of signal-to-noise ratio (SNR), log-spectral distance
(LSD), and accuracy of the ABX test. In all cases, NU-Wave outperforms the …
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