The change is on Headset Blackbird (USB-C earbuds) only.
The changed items are the same on R4 & O6 and the tuning
are also aligned with B3.
1. HE_BB, NB/WB/SWB/FB
- Apply the same TDDRC gain for each RX volume step
- Enable RX FFP
- Fine-tune volume curve
2. Reduce the clipping risk on RX path (SWB and FB RX)
- Fine tune EQ and TDDRC gain
3. HE_BB, WB_DT improvement
- TX_EAD_THR: 0x4500 --> 0x36B0
Bug: 213426722
Test: manual test (b/174635995#comment77)
Signed-off-by: Jasmine Cha <chajasmine@google.com>
Change-Id: Iecf9bd5d6150371556680bd493ae3412a1ad5c2e
9ea55c6a31