I'm designing a skill that plays an audio given a user selection. SSML is what I know that allows me to embed an audio. Thinking a bit further, I wonder if it's possible for an Alexa device to pick up commands while the audio is being played. If so, can the audio be paused and resumed (using a voice command)? How can it be done? I don't know if the skill still has control over the audio when it's being played.