3-4 years back Apple hired former SSL and Sony Oxford DSP genius Peter Eastty as head of SoC Audio Processing. They also hired Dana Massie formerly of Waves Audio. These were cutting edge hires that said Apple was serious about audio.
I remember reading a few years back that Apple hired some of the elite DSP engineers in the industry. Dana Massie from Waves. Peter Eastty from SSL/Sony Oxford. It would be no surprise to see some game changing results.