I’m using plasma, and my system is completely up to date. Whenever I use Bluetooth for audio, the audio cuts for a few moments than fades back in. It usually happens ~20 seconds after audio starts to play, and it’s consistent across all Bluetooth devices I have. At this point I’m not quite sure how to proceed 
Here’s btmon output:
> HCI Event: Disconnect Complete (0x05) plen 4 #4233 [hci0] 64.994872
Status: Success (0x00)
Handle: 256
Reason: Connection Timeout (0x08)
@ MGMT Event: Device Disconnected (0x000c) plen 8 {0x0001} [hci0] 64.994904
BR/EDR Address: xx:xx:xx:xx:xx:xx (Bose Corporation)
Reason: Connection timeout (0x01)
= bluetoothd: src/profile.c:ext_io_disconnected() Unable to get io data for Hands-Free Voice gateway: getpeername: Transport endpoint is not connected (107) 65.038348
= bluetoothd: src/profile.c:ext_io_disconnected() Unable to get io data for Phone Book Access: getpeername: Transport endpoint is not connected (107) 65.038703
< HCI Command: Create Connection (0x01|0x0005) plen 13 #4234 [hci0] 65.828435
Address: xx:xx:xx:xx:xx:xx (Bose Corporation)
Packet type: 0xcc18
DM1 may be used
DH1 may be used
DM3 may be used
DH3 may be used
DM5 may be used
DH5 may be used
Page scan repetition mode: R2 (0x02)
Page scan mode: Mandatory (0x00)
Clock offset: 0x0000
Role switch: Allow peripheral (0x01)
> HCI Event: Command Status (0x0f) plen 4 #4235 [hci0] 65.831137
Create Connection (0x01|0x0005) ncmd 1
Status: Success (0x00)
> HCI Event: Vendor (0xff) plen 4 #4236 [hci0] 66.841252
26 00 01 01 &...
> HCI Event: Connect Complete (0x03) plen 11 #4237 [hci0] 66.845244
Status: Success (0x00)
Handle: 256
Address: xx:xx:xx:xx:xx:xx (Bose Corporation)
Link type: ACL (0x01)
Encryption: Disabled (0x00)
My bluetooth/wifi runs on the same device, if that could be causing the problem.