HIGH SPEED DUBBING OF COMPRESSED DIGITAL AUDIO

摘要

High speed dubbing of compressed digital audio into analog storage (1) by dividing the compressed digital audio signal into a plurality of portions, interleaving the portions to respective decompression means (3) which separately decompress in parallel each portion, then recombining the portions and converting into analog form for transfer to analog storage (1). The decompression means (3) may run at greater than normal speed to allow the sound artefact at the join between the portions to be removed, also use of common or redundant data across a join is shown. High speed dubbing of an analog signal into compressed digital data storage by converting the analog signal to digital form, dividing the digital data into a plurality of portions which are separately compressed through respective compression means in parallel, recombining and transferring to digital storage. A memory (5) can be used to interleave and deinterleave the portions, this may be double buffered.