@inproceedings{Geumann2017,
  author    = {Anja Geumann},
  title     = {Ratios of spectral energy bands can indicate speech volume level},
  series = {Proceedings of the 18th International Association of Forensic Phonetics and Acoustics Annual Conference, August 2009},
  publisher = {Department of Linguistics, University of Cambridge},
  address   = {Cambridge, U.K.},
  url       = {https://nbn-resolving.org/urn:nbn:de:bsz:mh39-57393},
  year      = {2017},
  language  = {en}
}