Theoretical description of FM audio recording in Hi-Fi-VHS

Theoretical simulation of the magnetic recording process, similar to the Preisach model, is used to describe the video recording process with frequency-modulated audio recording (Hi-Fi VHS). The model is capable of giving a good reproduction of the conditions determined in experiments. Varying the magnetostatic properties of the tape made it possible to study the video and audio recording properties as a function of these parameters and to predict possible methods of tape optimization. It was found that increasing the coercivity is the most promising way to improve the audio playback characteristics