 Made available as part of the Pro Tools Ultimate June 2021 software release, the patented Hybrid Engine maximizes the performance of HDX systems by unlocking higher voice counts for bigger sessions and more flexible, near-zero latency recording workflows Made available as part of the Pro Tools Ultimate June 2021 software release, the patented Hybrid Engine maximizes the performance of HDX systems by unlocking higher voice counts for bigger sessions and more flexible, near-zero latency recording workflows 