A method and a device for controlling a thermal cycle of a weld joining one end of a first strip to an end of a second strip, suited to a joining machine of a strip treatment plant. The result is a clarified sound that gives to the listening participant a sense of where the speaking participant is positioned relative to the listening participant. By configuring the composite component with different materials, the weight of the composite component can be reduced while maintaining the strength and support of the composite component for a cockpit assembly. The data added to the training symbol sequence specifies an interval in which effects of the crosstalk are received.