Qualcomm Intership interview questions

I received an email announcement about an internship opportunity for a "Speech Models and Algorithms" opportunity. The engineers scheduled a phone interview which went very well and then they wanted a second one. Two weeks later I heard back that they decided to proceed with another candidate. Overall it was a positive experience.

One hour/ 45 minutes Skype call with three people. Questions about digital, low power, analog, operating systems and programming. The guys were really kind. The overall process was smooth. I got an HR interview 2 weeks later and an offer at the end of the week. The HR interview was just personal infos.