Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Latency Measurements of Audio Sigma Delta Analog to Digital and Digital to Analog Converts
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.
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