Noise Shaping Scheme Suppressing Quantization Noise Amount

Yoneya A. Noise Shaping Scheme Suppressing Quantization Noise Amount. In: AES Convention 143. Audio Engineering Society; 2017. Paper 9883. Available from: https://aes.org/publications/elibrary-page/?id=19280

@inproceedings{Yoneya2017_19280,
  author = {Yoneya, Akihiko},
  title = {{Noise Shaping Scheme Suppressing Quantization Noise Amount}},
  booktitle = {AES Convention 143},
  note = {Paper 9883},
  year = {2017},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19280}
}

TY  - CPAPER
TI  - Noise Shaping Scheme Suppressing Quantization Noise Amount
AU  - Yoneya, Akihiko
T2  - AES Convention 143
M1  - Paper 9883
PY  - 2017
DA  - 2017/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19280
PB  - Audio Engineering Society
LA  - en
AB  - A noise shaping scheme for multi-bit pulse-code-modulation suppressing the amount of the quantization noise is proposed. In the case with ordinary digital processing or digital-to-analog converters, noise is added over the whole frequency range and the shaped quantization noise of the source signal may only make the total signal-to-noise ratio worse. Therefore the amount of the quantization noise is preferable to be small even if the noise spectrum is shaped. In the proposed method, magnitude of the quantization noise is restricted at each sample and the optimal additional quantization pattern over a receding horizon with respect to the specified perception filter is searched in the look-ahead sigma-delta modulator manner. The amplitude of the quantization noise may be about 0.72 LSB regardless of the perception filter with the proposed method but a higher order perception filter requires a wide horizon of the optimization and a huge amount of the computation. An example is presented.
ER  -