The Transient Steering Decorrelator Tool in the Upcoming MPEG Unified Speech and Audio Coding Standard

Kuntz A, Disch S, Bäckström T, Robilliard J. The Transient Steering Decorrelator Tool in the Upcoming MPEG Unified Speech and Audio Coding Standard. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8533. Available from: https://aes.org/publications/elibrary-page/?id=16059

@inproceedings{Kuntz2011_16059,
  author = {Kuntz, Achim and Disch, Sascha and Bäckström, Tom and Robilliard, Julien},
  title = {{The Transient Steering Decorrelator Tool in the Upcoming MPEG Unified Speech and Audio Coding Standard}},
  booktitle = {AES Convention 131},
  note = {Paper 8533},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16059}
}

TY  - CPAPER
TI  - The Transient Steering Decorrelator Tool in the Upcoming MPEG Unified Speech and Audio Coding Standard
AU  - Kuntz, Achim
AU  - Disch, Sascha
AU  - Bäckström, Tom
AU  - Robilliard, Julien
T2  - AES Convention 131
M1  - Paper 8533
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16059
PB  - Audio Engineering Society
LA  - en
AB  - Applause signals are still challenging to code with good perceptual quality using parametric multichannel audio coding techniques. To improve the codec performance for these particular items, the Transient Steering Decorrelator (TSD) tool has been adopted into the upcoming Moving Picture Experts Group (MPEG) standard on Unified Speech and Audio Coding (USAC) as an amendement to the MPEG Surround 2-1-2 module (MPS). TSD improves the perceptual quality of signals which contain rather dense spatially distributed transient auditory events like in applause type of signals. Within TSD, transient events are separated from the core decoder output and a dedicated decorrelator algorithm distributes the transients in the spatial image according to parametric guiding information transmitted in the bitstream. Listening tests show a substantial improvement in subjective quality.
ER  -