Dear expert,
we face to the same issue as below E2E link.
http://e2e.ti.com/support/audio/f/6/t/857311?TAS2770EVM-USB-Audio-from-PC-to-the-EVM-board-not-working
However, we have follow EVM user guide and connect with PPC3 successful in our laptop.( windows10/ 64 bits)
Could you share your comments about this issue with us?
Regards,
Ben