Improved Analogue-to-Digital Converter for High-quality Audio

Craven P, Stuart R. Improved Analogue-to-Digital Converter for High-quality Audio. In: Express Paper. Audio Engineering Society; 2024. Paper 267. Available from: https://aes.org/publications/elibrary-page/?id=22725

@inproceedings{Craven2024_22725,
  author = {Craven, Peter and Stuart, Robert},
  title = {{Improved Analogue-to-Digital Converter for High-quality Audio}},
  note = {Paper 267},
  year = {2024},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22725}
}

TY  - CPAPER
TI  - Improved Analogue-to-Digital Converter for High-quality Audio
AU  - Craven, Peter
AU  - Stuart, Robert
M1  - Paper 267
PY  - 2024
DA  - 2024/09/27
UR  - https://aes.org/publications/elibrary-page/?id=22725
PB  - Audio Engineering Society
LA  - en
AB  - A high-oversampled, low-bit modulator typical of modern audio ADCs needs a downsampler to provide PCM audio at sampling rates ranging from 44.1 kHz to 768 kHz. Traditionally, a multistage downsampler requantises at each stage, raising questions about audio transparency. We present a decimator design in which there is no requantisation other than a single dithered quantisation when necessary to produce a final audio output of finite precision such as 24 bits. All processing is minimum-phase and concordant with the principles introduced in [1] which optimize for a specific compact impulse response and minimal (zero) modulation noise. [2]
ER  -