I've got sweet Bluetooth IEM headphones (H2 from RBH) that support the new Sony "LDAC" Bluetooth codec that's available in Android Oreo (well, it's "somewhat" available -- my Samsung Galaxy S9 has LDAC available but only in Developer Options, which is fine and just needs to be reset upon a device restart).

I'm using Spotify's highest-quality downloads on my phone.

The questions is which of the following settings for Bluetooth are optimal with LDAC:

Bluetooth AVRCP version:

- 1.4 (Default)

- 1.5

- 1.6

Sample rate:

- 44.1

- 48

- 96

Bits per sample:

- 16

- 24

- 32

(Not to taint the discussion, but the head of the tech support dept for the maker of the headphones suggested I go with the highest available settings for Sample rate and for Bits per sample, 96/32, but he also seemed to be humbly suggesting he wasn't positive about that; and FWIW in my initial experimenting I don't know that anything above 44.1/24 or perhaps 48/24 is helpful and it seems the highest available settings may even be a bit distorted -- though I'm about as from an audiophile as it gets and my ear is not at all "trained.")

Thanks!