Enhancing the Performance of Perceptual Audio Coders by Using Temporal Noise Shaping (TNS)

Herre J, Johnston JD. Enhancing the Performance of Perceptual Audio Coders by Using Temporal Noise Shaping (TNS). In: AES Convention 101. Audio Engineering Society; 1996. Paper 4384. Available from: https://aes.org/publications/elibrary-page/?id=7395

@inproceedings{Herre1996_7395,
  author = {Herre, Jürgen and Johnston, James D.},
  title = {{Enhancing the Performance of Perceptual Audio Coders by Using Temporal Noise Shaping (TNS)}},
  booktitle = {AES Convention 101},
  note = {Paper 4384},
  year = {1996},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=7395}
}

TY  - CPAPER
TI  - Enhancing the Performance of Perceptual Audio Coders by Using Temporal Noise Shaping (TNS)
AU  - Herre, Jürgen
AU  - Johnston, James D.
T2  - AES Convention 101
M1  - Paper 4384
PY  - 1996
DA  - 1996/11/06
UR  - https://aes.org/publications/elibrary-page/?id=7395
PB  - Audio Engineering Society
LA  - en
AB  - Inappropriate temporal speed of quantization noise is known to be the reason for the so-called pre-echo artifacts in perceptual audio coding. These artifacts occur when a transient signal is being coded in a spectral representation because the quantization noise is spread out over the entire window length of the filterbank and, in this way, is not masked by the signal. A novel approach to the pre-echo problem is presented, allowing to shape the quantization noise in time. The technique is shown to also work efficiently in the case of pitched signals (e.g., speech) where traditional block switching schemes do not offer a solution.
ER  -