Perceptual Quality of Audio Separated Using Sigmoidal Masks

Stokes T, Hummersone C, Brookes T, Mason A. Perceptual Quality of Audio Separated Using Sigmoidal Masks. In: AES Convention 137. Audio Engineering Society; 2014. Paper 9182. Available from: https://aes.org/publications/elibrary-page/?id=17505

@inproceedings{Stokes2014_17505,
  author = {Stokes, Toby and Hummersone, Christopher and Brookes, Tim and Mason, Andrew},
  title = {{Perceptual Quality of Audio Separated Using Sigmoidal Masks}},
  booktitle = {AES Convention 137},
  note = {Paper 9182},
  year = {2014},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17505}
}

TY  - CPAPER
TI  - Perceptual Quality of Audio Separated Using Sigmoidal Masks
AU  - Stokes, Toby
AU  - Hummersone, Christopher
AU  - Brookes, Tim
AU  - Mason, Andrew
T2  - AES Convention 137
M1  - Paper 9182
PY  - 2014
DA  - 2014/10/06
UR  - https://aes.org/publications/elibrary-page/?id=17505
PB  - Audio Engineering Society
LA  - en
AB  - Separation of underdetermined audio mixtures is often performed in the Time-Frequency (TF) domain by masking each TF element according to its target-to-mixture ratio. This work uses sigmoidal functions to map the target-to-mixture ratio to mask values. The series of functions used encompasses the ratio mask and an approximation of the binary mask. Mixtures are chosen to represent a range of different amounts of TF overlap, then separated and evaluated using objective measures. PEASS results show improved interferer suppression and artifact scores can be achieved using softer masking than that applied by binary or ratio masks. The improvement in these scores gives an improved overall perceptual score; this observation is repeated at multiple TF resolutions.
ER  -