Low Power Stereo Perceptual Audio Coding Based on Adaptive Masking Threshold Reuse

George S, Kurniawati E. Low Power Stereo Perceptual Audio Coding Based on Adaptive Masking Threshold Reuse. In: AES Convention 122. Audio Engineering Society; 2007. Paper 7001. Available from: https://aes.org/publications/elibrary-page/?id=13986

@inproceedings{George2007_13986,
  author = {George, Sapna and Kurniawati, Evelyn},
  title = {{Low Power Stereo Perceptual Audio Coding Based on Adaptive Masking Threshold Reuse}},
  booktitle = {AES Convention 122},
  note = {Paper 7001},
  year = {2007},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13986}
}

TY  - CPAPER
TI  - Low Power Stereo Perceptual Audio Coding Based on Adaptive Masking Threshold Reuse
AU  - George, Sapna
AU  - Kurniawati, Evelyn
T2  - AES Convention 122
M1  - Paper 7001
PY  - 2007
DA  - 2007/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13986
PB  - Audio Engineering Society
LA  - en
AB  - The term perceptual audio coder refers to audio compression schemes that exploit the properties of human auditory perception. The idea is to allocate the quantization noise elegantly below the masking threshold to make it imperceptible to the ear. The process requires considerable computational effort, especially due to the psychoacoustics analysis and bit allocation-quantization process. This paper proposes a new method to simplify the psychoacoustics modelling process by adaptively reusing the computed masking threshold depending on the signal characteristics. The method also device a scheme to patch the potential spectral hole problems that might occur when the quantization parameters are reused. This proposal can be applied to generic stereo perceptual audio encoder where low computational complexity is required.
ER  -