Tech Talk

My recent discussion of Sound Liaison and their DSD releases got me thinking about all of the ways that DSD recordings are produced. A subsequent email from the company, indicated that they take their original 96 kHz/24-bit PCM recordings and convert them to DSD 64 through an analog process, "We do a D/A/D transfer using high end converters" was their response. ...

Today's installment pushes forward on the basic theory of The Sampling Theorem, which is the basis for converting analog music signals to PCM digital versions. We talked about the idea of "proper sampling". ...

There's more to the story of analog tape than what I've revealed in recent posts. I've written a lot about the failings of analog tape when it comes to its inherent noise floor, which hangs about 60-72 dB below the signal. That's the figure for a first generation tape recording done on a professional machine using quarter inch tape running at 15 inches per second in stereo. ...