Hello folks,
I have a project that sends voice from ESP32 to headphone with hands free profile mSBC codec.
I used example from esp-idf that name is hfp_ag.
I used HCI directly instead of PCM. So I generated a tone to listen it at headphone.
I did every step which was explained in example's readme ...

Hello all,
I would like to generate and transmit sine wave over Bluetooth A2DP protocol to a headset.
I generate sine wave successfully. I can send it to headset but there is noise inside. Especially, when I try to change frequency.
My sampling rate is 44.1khz.

static void bt_app_a2d_cb(esp_a2d_cb ...