Roland D-50 / D-20 converters

From these service manuals (here for the D-50 and there for D-20) we learn that both Roland synths use Burr-Brown PCM54 D/A converter. However the D-50 added a 4 bits chip to convert the lower 4 bits from 20 bits signal (better headroom for internal processing and better dynamic for output).

Dreamfall chapters book two

Dreamfall chapters book two is available through Steam (3 GB update).

The game performance on Windows (through Bootcamp, on a mac mini with Nvidia 320M) doesn’t seem better than on OSX. Unity 4 engine may then not be faster through Direct3D than when using OpenGL.