Celemony Melodyne Essential 2 - single-track audio editing environment with Melodyne technology, suitable for monophonic and rhythmic/complex audio material, works as a plug-in (VST, AU, RTAS), timestretch and pitch shift functions, multi-language manual (PDF - no printed manual), for 32 bit: Windows XP, Vista, Win 7, 4 GB RAM or more, ASIO-compatible audio hardware, Mac OS X 10.5.8, 10.6.8, 10.7.4 on Intel Macs, 4 GB RAM or more, Please note: the G5 is not supported anymore, 64 bit: Windows Win7/64, 4 GB RAM or more, Mac OS X 10.5.8, 10.6.8, 10.7.4 on Intel Macs, 4 GB RAM or more, Please note: the G5 is not supported anymore