Introduce Filters This release introduces the concept of Filters for modifying incoming data. With custom Filters it is possible to adjust (e.g. smooth) data or even to add new derived data (e.g. the maximum, a derivative, an integral, etc...). A slight speedup of the SpectrumAnimator was achieved by using scipy's FFT implementation, not numpy's. Furthermore, displaying the current FPS is now possible for some Animators.