Answer
See below.
Work Step by Step
The contrapositive of $p\rightarrow q$ is $\sim q\rightarrow p$.
The converse of $p\rightarrow q$ is $q \rightarrow p$.
The inverse of $p\rightarrow q$ is $\sim p\rightarrow q$.
Hence here the converse is: If I cannot hear you, then the stereo is playing. The inverse: If the stereo is not playing, then I can hear you. The contrapositive: If I can hear you, then the stereo is not playing.