aptX support in FP4?

[aemarques]

Hi everyone.

When connected with my BT box (BT Box S2 – Pro-Ject Audio Systems) streaming only works with aptX off (see screenshot).
All other phones at home work well (Samsung and Motorola).

Does this means FP4 does not support aptX?

If true, this is a serious issue on a phone with wireless sound support only…

[urs_lesse]

You might want to have a look at this detailed look into this issue:

Bluetooth audio bug on Android 12

Hi, I’ve done some troubleshooting and can probably explain why some users are reporting the bug as fixed, while others still have issues. The FP4.SP21.B.048.20230215 update does indeed fix aptX HD. It does NOT fix aptX or aptX Adaptive. LDAC works but does NOT get automatically used, see workarounds 2 and 3 below. Bluetooth devices that support aptX or aptX Adaptive will automatically use these over AAC or aptX HD because the FP4 lists these broken ones as higher priority in the bluetooth aud…

[askaaron]

@aemarques

When connected with my BT box (BT Box S2 – Pro-Ject Audio Systems) streaming only works with aptX off (see screenshot).
All other phones at home work well (Samsung and Motorola).

Does this means FP4 does not support aptX?

FP4 does - but not with the Android version released so far. With LineageOS 20, which is based on Android 13, I have no problems using aptX. So hopefully with future updates this will be fixed in the regular Android version of Fairphone as well.