Apple get new audio frequency separation patent granted by the USPTO. Could this be a hint at what is to come in Logic Pro x
The USPTO have granted Apple with a patent for polyphonic note detection, a technology which can be used to separate instruments from a full mix, or single notes from a chord.
Until recently is was only possible to correct the pitch of single notes on monophonic instruments until the founder of Celemony's Melodyne software, Peter Neubäcker, received the conundrum from a glockenspiel player. The player agonised that although he played the instrument one note at a time, the tails of individual notes naturally carried some sustain, therefore if notes were adjusted in Melodyne, the sustained tail of the previous note was also altered, thus making the technology redundant for some instruments. Peter Neubäcker worked out a way of detecting and separating the frequencies from sustained and current notes played in an audio file, thus polyphonic note detection was first created. It wasn't long before producers and musicians were using the technology to alter individual note pitches, tune individual strings, take vocals from tracks for acapellas, create Karaoke style mixes, capture drum grooves and many more post production tricks.
You can read the full patent for yourself here: US Patent No. 8,309,834
Whether Apple are going to implement the technology in Logic Pro, Garageband or something totally new is yet to be see, however this is technology with a professional tendency and as we all know a new update to Logic Pro is surely on the cards...