I've downloaded and test the USB Audio example code for CY8CKIT-046, PSOC-4L pioneer kit. The USB operation looks fine. I can see audio device detected and configure fine. Just NO sound output in the earphone. I checked the document and have no clue. I am using Windows 10 to develop and test program.
For curiosity, I plug in the device into Windows XP PC and I can hear the audio. So something wrong for this USB Audio in Windows 10?