I have an orchestral project in Cakewalk by Bandlab which uses the Garritan PO for all instruments. I have just replaced most of the brass instruments as I had the Project SAM brass instruments in there and for some reason they do not appear to be generating any sound apart from the Tuba (another mystery!)
The trumpets are too strident during most of the piece so I have tried to reduce their output by reducing their velocity in the automation window but they do not change volume - this work perfectly well in the strings and timpani where I have automated velocity previously.
Any ideas most welcome!