Strange sound in voice conversation

I was listening to Maple read aloud a rather long prompt to me. As she reached around the 7 min mark of speaking through the prompt, i heard what sounded like a sensual moan, followed by the cracking of a whip, then a dog barking.

I can at least count myself lucky that I did not hear the screaming others have reported.

After the strange noise, she did begin speaking again at the correct point she had left off as if it had not occurred, however shortly following beginning to speak again she started to speak the prompt back from the beginning all over again, even though it was not finished, and the timer did not reset either.