Title :
Phase equalisation of analogue magnetic recorders by transversal filtering
Author_Institution :
Harvard University, Gordon McKay Laboratory, Division of Engineering & Applied Physics, Cambridge, USA
Abstract :
The `time-reversed-impulse-response¿ method of phase equalisation is explained theoretically. Experimental results are presented, showing the impulse response of an analogue magnetic recorder before and after phase equalisation. The transversal-filter equaliser (32-tap analogue delay line of 320 ¿s length) is adjusted in the time domain so that actual phase-response measurements are not necessary.
Keywords :
audio recording; equalisers; magnetic recording; signal processing; analogue magnetic recorders; phase equalisation; time reversed impulse response method; transversal filtering;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770090