Matrix surround decoding, the process of deriving several output channels from a two-channel delivery medium, is nothing new. When Dolby Surround Pro Logic decoding was introduced back in 1987, it ...

Figure 1. The standardized tape recording and playback EQ curves. The next aspect of analog tape recording is an interesting one, for it can also apply to audio transmission on long circuits ...

I fear the topic of this column is poised to unleash a tsunami of controversy. My engineering accomplice Joe Farr says that this is one of those topics that, when presented to 10 different engineers, ...