CLEAR: Conditionally Lossless Encoding under Allowed Rates for Low-Delay Sound Data Transmission

Sugiura R, Kamamoto Y, Harada N, Kawanishi T, Moriya T. CLEAR: Conditionally Lossless Encoding under Allowed Rates for Low-Delay Sound Data Transmission. In: AES Convention 143. Audio Engineering Society; 2017. Paper 9899. Available from: https://aes.org/publications/elibrary-page/?id=19296

@inproceedings{Sugiura2017_19296,
  author = {Sugiura, Ryosuke and Kamamoto, Yutaka and Harada, Noboru and Kawanishi, Takahito and Moriya, Takehiro},
  title = {{CLEAR: Conditionally Lossless Encoding under Allowed Rates for Low-Delay Sound Data Transmission}},
  booktitle = {AES Convention 143},
  note = {Paper 9899},
  year = {2017},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19296}
}

TY  - CPAPER
TI  - CLEAR: Conditionally Lossless Encoding under Allowed Rates for Low-Delay Sound Data Transmission
AU  - Sugiura, Ryosuke
AU  - Kamamoto, Yutaka
AU  - Harada, Noboru
AU  - Kawanishi, Takahito
AU  - Moriya, Takehiro
T2  - AES Convention 143
M1  - Paper 9899
PY  - 2017
DA  - 2017/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19296
PB  - Audio Engineering Society
LA  - en
AB  - We present in this paper a near-lossless full-band stereo compression scheme, Conditionally Lossless Encoding under Allowed Rates (CLEAR), aiming at its use in real-time transmission of sound data, sounds to be mixed or processed after transmitted. Using uniform quantizer with MPEG-4 Audio Lossless Coding (ALS) and adaptive pre- and post-processing, CLEAR controls the encoding bit rate with maximum fidelity of reconstructed signals. Objective experiments show an enhancement in signal to noise ratio (SNR) and from conventional low-delay codecs with compatible perceptual quality. Additionally, companding-based perceptual weighting designed for CLEAR is shown to make an improvement in Perceptual Evaluation of Audio Quality (PEAQ).
ER  -