Translate the following English sentence to French:
"Mr De Roo was right in demonstrating that the regulation proposed by the Commission will not sufficiently improve matters, and that it is technically possible to reduce pollution by a few decibels."
M. de Roo a démontré fort justement que le règlement proposé par la Commission n' apporte pas d' améliorations satisfaisantes et qu' il est techniquement possible de diminuer les nuisances sonores de quelques décibels.