Decoder Based Approach to Enhance Low Bit Rate Audio

Kurniawati E, Lau CT, Premkumar B, George S, Absar J. Decoder Based Approach to Enhance Low Bit Rate Audio. In: AES Convention 116. Audio Engineering Society; 2004. Paper 6177. Available from: https://aes.org/publications/elibrary-page/?id=12765

@inproceedings{Kurniawati2004_12765,
  author = {Kurniawati, Evelyn and Lau, Chiew Tong and Premkumar, Benjamin and George, Sapna and Absar, Javed},
  title = {{Decoder Based Approach to Enhance Low Bit Rate Audio}},
  booktitle = {AES Convention 116},
  note = {Paper 6177},
  year = {2004},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12765}
}

TY  - CPAPER
TI  - Decoder Based Approach to Enhance Low Bit Rate Audio
AU  - Kurniawati, Evelyn
AU  - Lau, Chiew Tong
AU  - Premkumar, Benjamin
AU  - George, Sapna
AU  - Absar, Javed
T2  - AES Convention 116
M1  - Paper 6177
PY  - 2004
DA  - 2004/05/06
UR  - https://aes.org/publications/elibrary-page/?id=12765
PB  - Audio Engineering Society
LA  - en
AB  - A method to improve the PSNR of a perceptual audio coder is presented. It is based on the use of noise estimator at the decoder side to relate the quantization parameters and the quantization error. The quartic equation established contains two real roots, of which one of them is the desired spectral value. This value contains lesser quantization error compared to the de-quantized spectral value of a normal decoder. This leads to an improvement of up to 12 dB in SNR without significant increase in the decoder complexity.
ER  -