Noise attenuation connection arrangement

The invention relates to a duct connection arrangement (20) of an internal combustion engine, comprising a first duct (21) having one end (211) fitting into an end (221) of a second duct (22), said first duct end (211) carrying air tightening means (214) around its circumference. According to the invention, said first duct end (211) carries sound insulation means (215) around its circumference.