Evaluation of the Average DC Offset Values for Nine Small Digital Audio Recorders

Koenig BE, Lacey DS, Grigoras C, Price SG, Smith JM. Evaluation of the Average DC Offset Values for Nine Small Digital Audio Recorders. J Audio Eng Soc. 2013;61(6):439-448. Available from: https://aes.org/publications/elibrary-page/?id=16834

@article{Koenig2013_16834,
  author = {Koenig, Bruce E. and Lacey, Douglas S. and Grigoras, Catalin and Price, Suzana Galic and Smith, Jeff M.},
  title = {{Evaluation of the Average DC Offset Values for Nine Small Digital Audio Recorders}},
  journal = {Journal of the Audio Engineering Society},
  volume = {61},
  number = {6},
  pages = {439--448},
  year = {2013},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16834}
}

TY  - JOUR
TI  - Evaluation of the Average DC Offset Values for Nine Small Digital Audio Recorders
AU  - Koenig, Bruce E.
AU  - Lacey, Douglas S.
AU  - Grigoras, Catalin
AU  - Price, Suzana Galic
AU  - Smith, Jeff M.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 61
IS  - 6
SP  - 439
EP  - 448
PY  - 2013
DA  - 2013/06/06
UR  - https://aes.org/publications/elibrary-page/?id=16834
PB  - Audio Engineering Society
LA  - en
AB  - Scientific authentication of recordings in forensic evaluations depends on having a reliable collection of parameters that can be used to determine originality, alterations, editing, and rerecording. DC offset, which is intrinsic to all electronics, is a possible candidate for such evaluations. Nine small digital audio recorders and five audio formats were measured to determine if they displayed sufficient salient characteristics to make meaningful comparisons between submitted audio files and exemplar recordings. The wide variation and inconsistency of DC offset in relation to the observed standard deviation precluded the use of this parameter.
ER  -