Investigations Towards Plausible Blind Upmixing of Applause Signals

Adami A, Brand L, Herre J. Investigations Towards Plausible Blind Upmixing of Applause Signals. In: AES Convention 142. Audio Engineering Society; 2017. Paper 9750. Available from: https://aes.org/publications/elibrary-page/?id=18626

@inproceedings{Adami2017_18626,
  author = {Adami, Alexander and Brand, Lukas and Herre, Jürgen},
  title = {{Investigations Towards Plausible Blind Upmixing of Applause Signals}},
  booktitle = {AES Convention 142},
  note = {Paper 9750},
  year = {2017},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18626}
}

TY  - CPAPER
TI  - Investigations Towards Plausible Blind Upmixing of Applause Signals
AU  - Adami, Alexander
AU  - Brand, Lukas
AU  - Herre, Jürgen
T2  - AES Convention 142
M1  - Paper 9750
PY  - 2017
DA  - 2017/05/06
UR  - https://aes.org/publications/elibrary-page/?id=18626
PB  - Audio Engineering Society
LA  - en
AB  - Blind upmix denotes the process of converting audio content into a higher number of output channels without the aid of any prior spatial information. This is often needed for upmixing legacy monophonic recordings into modern multichannel audio formats. Especially in live-recordings, applause plays a vital role. However, creating a convincing blind upmix of applause signals is a demanding task. Applause can be interpreted as a superposition of distinctive and individually perceivable foreground claps and a more noise-like background. While the background signal can be upmixed by applying decorrelation and distribution across channels, it is important that the foreground claps are spatially distributed in a perceptually meaningful and plausible manner. This paper investigates the effect of the spatial, temporal, and timbral structure of foreground claps on the perceived plausibility of applause signals. The assessment was done by means of two listening tests. Results show that especially for sparse applause, plausibility is significantly reduced if its natural timbral and temporal structure is corrupted.
ER  -