Thanks for opening this issue @PoLTheToWeR! This behavior is expected as the currently released versions of JupyterLab and Jupyter Notebook do not support rendering audio and video files. This is soon ...

IPython Kernel for Jupyter. Contribute to ipython/ipykernel development by creating an account on GitHub.

The second public betas match the build numbers of the fifth developer betas for each of the OS 26 releases. With the public beta program, iPhone, iPad, and Mac users can get experience with the ...