Variable Analog Filters for the Support of Variable Sampling-Rate Digital Audio

Noetzel A. Variable Analog Filters for the Support of Variable Sampling-Rate Digital Audio. In: AES Convention 83. Audio Engineering Society; 1987. Paper 2497. Available from: https://aes.org/publications/elibrary-page/?id=4905

@inproceedings{Noetzel1987_4905,
  author = {Noetzel, Andrew},
  title = {{Variable Analog Filters for the Support of Variable Sampling-Rate Digital Audio}},
  booktitle = {AES Convention 83},
  note = {Paper 2497},
  year = {1987},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=4905}
}

TY  - CPAPER
TI  - Variable Analog Filters for the Support of Variable Sampling-Rate Digital Audio
AU  - Noetzel, Andrew
T2  - AES Convention 83
M1  - Paper 2497
PY  - 1987
DA  - 1987/10/06
UR  - https://aes.org/publications/elibrary-page/?id=4905
PB  - Audio Engineering Society
LA  - en
AB  - Computer music systems often lack the capability of producing full-bandwidth sound in real time. Yet for the development phase of a musical work, the requirement for real-time processing can be more important than the requirement for high fidelity. There is a need for the capability of computing samples at reduced rates, and converting the samples in real time. But the reconstruction filter must then have a variable cutoff frequency. An output subsystem for computer music is described. It is based on a switched-capacitor reconstruction filter with variable cutoff frequency. The subsystem allows the generation and conversion of samples at rates specified under software control. A similar design can be used for variable sampling-rate audio input.
ER  -