Baroque trumpets are lighter and softer sounding than the modern trumpet.
There are two classifications of 'baroque' trumpets that will apply here. One is the 'natural trumpet' and the other is the 'vented trumpet', we will stay away from the Zugtrompete for the time being. And then we have the modern day trumpet.
The earlier versions of the trumpet tend to be lighter sounding with a softer texture as compared with the modern day trumpet. Natural trumpets tended to be firmer and fuller than vented trumpets, but vented trumpets play better in tune. If you are playing appropriate music there should not be a need for the vent holes.
Baroque trumpets use the natural harmonic series and depending on the key of the trumpet and the prevalent keys of the composers were constructed to favor certain notes. (modern replicas usually even out these tunings not knowing what key the replica will be played in - but if you are an intent enthusiast you can get replicas made to your specs to favor certain notes). Most all composers wrote around the naturally challenged notes (out of tune or tone color), or used those challaneges for specific color requests. This is why professional muscians like to read and tranpose an original part rather than a transposed part -- so that they can see what sounds an colors the compser was trying to achieve.
Re: baroque trumpets 15:32 on Tuesday, August 11, 2009