Month: May 2021
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Home Theatre Receiver Subwoofer Offset
When testing receiver audio latency, I noticed that some receivers were able to extract low frequencies of an analog stereo source to send to a subwoofer with zero delay to the left and right speakers. This took me by surprise, because I expected the low frequencies for the subwoofer to be digitally extracted from the…
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More Quirks of the PreSonus Studio 26c
A little over a year ago, I posted about some unexpected behaviour with the different output channels of the PreSonus Studio 26c. During my work of testing different audio DACs and receivers for audio latency, I noticed that the internal clock on this USB audio interface to be notably off compared to other audio devices…
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How to Measure HDMI Audio Latency Using a Wii U
2022 UPDATE Since writing this blog post I have created the AV Latency.com Toolkit, which is designed to accurately measure HDMI Audio Latency. This old “Wii U method” of measuring HDMI audio latency results in measurements that are around 0.5 ms higher than expected, which is still an impressive level of accuracy. I would recommend…