Latency Measurements of Audio Sigma Delta Analog to Digital and Digital to Analog Converts

Wang Y. Latency Measurements of Audio Sigma Delta Analog to Digital and Digital to Analog Converts. In: AES Convention 131. Audio Engineering Society; 2011. Paper 25. Available from: https://aes.org/publications/elibrary-page/?id=16581

@inproceedings{Wang2011_16581,
  author = {Wang, Yonghao},
  title = {{Latency Measurements of Audio Sigma Delta Analog to Digital and Digital to Analog Converts}},
  booktitle = {AES Convention 131},
  note = {Paper 25},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16581}
}

TY  - CPAPER
TI  - Latency Measurements of Audio Sigma Delta Analog to Digital and Digital to Analog Converts
AU  - Wang, Yonghao
T2  - AES Convention 131
M1  - Paper 25
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16581
PB  - Audio Engineering Society
LA  - en
AB  - Latency is a well recognized issue when using digital audio workstations for live music processing. Previous research has reported measurements of the latency of the whole audio processing chain based on a “blackbox” approach. This report presents the results of latency measurement of typical compact analog to digital and digital to analog converters (ADC/DACs) in isolation from computer system processing overheads by using a high-speed data acquisition device. The report discusses the testing methods and pitfalls. It confirms that the latency is almost exclusively accounted for by the expected group delay of the digital decimation filters and interpolation filters used in the Sigma-Delta convertor.
ER  -