@article{mcknight1959signal, title = {Signal-To-Noise Problems and A New Equalization for Magnetic Recording of Music}, author = {McKnight, John G.}, journal = {J. Audio Eng. Soc}, volume = {7}, number = {1}, pages = {5--12}, year = {1959}, url = {https://www.aes.org/e-lib/browse.cfm?elib=584} }