This paper discusses the processes involved in designing and implementing an object-oriented library for audio signal processing in C++ (ISO/IEC C++14). The introduction presents the background and motivation for the project,which is related to providing a platform for the study and research of algorithms, with an added benefit of having an efficient and easy-to-deploy library of classes for application development. The design goals and directions are explored next, focusing on the principles of stateful representations of algorithms, abstraction/ encapsulation, code re-use and connectivity. The paper provides a general walk-through the current classes and a detailed discussion of two algorithm implementations. Completing the discussion, an example program is presented.