The question of interoperability for linguistic annotated resources requires to cover different aspects. First, it requires a representation framework making it possible to compare, and potentially merge, different annotation schema. In this paper, a general description level representing the multimodal linguistic annotations is proposed. It focuses on time and data content representation: This paper reconsiders and enhances the current and generalized representation of annotations. An XML schema of such annotations is proposed. A Python API is also proposed. This framework is implemented in a multi-platform software and distributed under the terms of the GNU Public License.