Apply for the job through Apple's website.

It was a phone interview with the hiring manager. We talked a lot about the details of this position, so remember to align your preparation with the job description every time.

1. Some audio DSP concepts, such as sampling theory, convolution, what is noise, and how to characterize an audio system, etc.

2. How to use C to implement OOP.

3. The result of the following code: for(int i; i < 1; i++) {}

4. Reverse array