The Decca Basie booklet credits the digital transfers to Steven Lasker, Doug Schwartz and John R.T. Davies!
then adds: 'Audio restoration and reprocessing by Erick Labson (utilizing the Sonic Solution ''NoNOISE'' system)'.
A quote from the Decca/GRP set booklet: "In preparing this reissue, every effort has been made to locate the best available source material (original metal parts, shellac records, test pressings, or earlier tapes). After transfer to digital tape, reprocessing has been accomplished with the use of the computerized NoNOISE system developed by Sonic Solutions (...)"
Says enough...