specialguy
Banned
Interesting post by interference on B3D about the audio hardware
http://forum.beyond3d.com/showpost.php?p=1731360&postcount=2964
http://forum.beyond3d.com/showpost.php?p=1731360&postcount=2964
The SHAPE audio block and processing cores are really quite powerful (it's probably the closest thing in the actual hardware to the silly 'special sauce' claims).
Theoretically, they can free the main CPU from processing audio entirely - which is quite a benefit given games can use as many as 3 of the 6 CPU threads on 360 for audio.
Nevermind it also handling Kinect MEC and voice recognition which previously consumed CPU time from the game as well (as bkilian said above).
The SHAPE audio block alone is more than 100GF (though it can't really be counted that way since it's not general purpose FLOPS). The alpha kits had an extra 8 CPU cores to emulate the sound block but even that wasn't enough processing power so they never implemented the emulation
That's also where some early rumours of Durango having a 16 core CPU came from.
I don't think the PS4 has similarly capable fixed function audio hardware, so this helps compensate for the extra CPU core that's reserved on Durango.