Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015
Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
The Measurement and Calibration of Sound Reproducing Systems - July 2015
The Legendary "Magnetophon" of AEG
After the invention of paper tapes coated with magnetic powder in 1928, AEG and BASF launched a joint venture in order to develop a tape recording system. Stepwise improved between 1931 and 1934, AEG presen-ted 1935 the model K2, named "Magnetophon" together with the acetyl cellulose tape type "C" of BASF. 1940, AC-biasing in model K4 improved the signal to noise ratio up to 60 dB, surpassing all known recording systems at that time. The steps of development until the 1950th will be presented in detail.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.