Sound reproducing apparatus continuously deriving reproduced sound signal at recording time while driving sound reproducing media in special reproduction mode

Abstract From the Canadian patent

A sound reproducing apparatus is disclosed which, converts a sound signal reproduced in a 5 multiple speed reverse reproduction mode into a digital signal by pulses, obtained by frequency-multiplying reference sampling pulses by 5 to write the digital signal in a memory and reads out, from the memory the digital signal by the reference sampling pulses to convert the same to an analog signal. Reading of the signal from memory is performed in response to a read address changed in one direction in a predetermined cycle. Writing of a signal to the memory is performed by using address information changed in the direction opposite to that of the read address signal at a speed five times that of a …