Noises from your baseboard heat can be caused by a number of things, These things include, pipes that need to be bleed and also incorrect installation of slant fin heat will also cause noise.
The first step would be to determine what type of noise it is. If it sounds like “water rolling through the pipes” you probably will need to have your boiler bleed.
If the noise sounds like clicking, or plucking, it means that the grey clips on not postioned in the right place.
To correct this adjust the baseboard clips under the fins.