I applied through an employee referral. I interviewed at Qualcomm in Aug 2021
Interview
Interviews with focus on signal processing and c++. They basically tested whether you have good understanding of c++ or not. Some focus being on signal processing as well. But very less related to audio or anything to do with audio applications.
Interview questions [1]
Question 1
General C++ questions, Signal Processing questions like convolution
The test consists of 3 sections. 1st section was on reasoning, aptitude, quant, etc.. 2nd section was on C programming. Code snippets were given, need to tell output. The third section was on the operating system, OOPs, and some basic computer architecture and data structure questions.
Interview questions [1]
Question 1
Difference between macro and inline function.
Call the main function from the cmd line and pass two arguments to it and with these arguments call macro and inline function defined above. Whose execution will be faster?
Find the size of int in C without using sizeof() operator.
Inter-Process Communication
OOPs concepts
Virtual function and virtual class
Function overriding and function overloading difference
How to implement function overriding in C
Extern keyword related questions
Some other questions related to operating systems like threads, semaphores, mutex, spinlocks, scheduling algos, etc.
I applied online. I interviewed at Qualcomm in Apr 2017
Interview
Email from the recruiter ,Phone Interview with staff Engineer and Phone Interview with Principal Engineer and finally a reject. A long process overall which took more than 2 and half months. Had already lost hope after the first intervies
Interview questions [1]
Question 1
Signal Processing, Adaptive Signal Processing, Linear Phase Filtering, Sampling Rate Conversion, Convolution and Sampling in Fourier/ Frequency Domain, Kalman Filter
