Hello! I'm currently trying to modify pulseaudio to be able to use HFP profile with mSBC codec on native backend, but found that, while working de-jure, real sound is completely ruined, so I can barely hear what is sent over SCO link. I've tried two different Intel adapters (included in 8260 and 8265 chipset) and KillerWifi (ath10k driver), on two different PCs with two different headsets, results are mostly the same, the only difference is that on ath10k words are more or less distinguishable. I've even tested with pulse just for profile setup, and SCO is sent via modified scotest from bluez, which sends some test sound, manually encoded via sbcenc (with added h2, of course). I've tried also msbc branch from bluez-alsa, same result. I'm sure that every time socket is connected with setsockopt(fd, SOL_BLUETOOTH, BT_VOICE, &voice, sizeof(voice)); I've also tried with this patch https://www.spinics.net/lists/linux-bluetooth/msg76982.html, with no luck. Any ideas?