Hi Spotify Developers
I wanted to start another version of this thread to highlight that this is a REAL issue with SPOTIFY and not the Bose Soundlink (or other BT speakers), Bluetooth Stack or in fact CoreAudio on the Mac. This issue is totally reproducible every single time. After much testing I can safely say that this IS a SPOTIFY WEB Player issue.
Versions are thus:-
SPOTIFY = 22.214.171.124.g4dfabc51
MAC = 10.10.5 (14F27)
Bluetooth Stack on MAC = 4.3.6f3 16238 (v106 c8957)
BOSE Soundlink 2, bluetooth speaker
I have attached the bluetooth stack trace and can send a full video reproducing the problem if you would like.
When you are playing Spotify through the MAC speakers and have BT enabled (but not used for current sound output) and then you turn on the Soundlink Speaker. The new Soundlink 2 announces clearly that it it connected to the MAC. At this point the sound from the MAC speakers stops immediately. The Spotify web player keeps playing the song and you can clearly see the time bar moving to the right, BUT NO SOUND!! You can twiddle any knob, push a slider or a button in Spotify but it does NOTHING to switch the sound to the Soundlink or infact to the MAC sound output. Now if you look at the Sound Preference showing the dynamic state of the OUTPUT to BT everything looks perfect as it should. And more importantly even with Spotify running, WITHOUT SOUND, but slider moving, I can go to my iTunes thats sitting open in the background and play any song directly over BT to the Soundlink speaker. All is well in BOSE, BT and MAC world... unfortunately not for Spotify. SO..... Please note that to get around this problem you ONLY have to STOP and RESTART Spotify, then it all works perfectly. However this is not a happy situation and as I said is totally repeatable EVERYTIME.
And please note, as I said, that through the whole process, when the Soundlink speaker says its connected I can IMMEDIATELY play sound from iTunes or any other sound source, so the output setting for CoreAudio has been updated correctly (when connecting the Soundlink) and the bluetooth stack is functioning correctly for ALL other outbound sounds EXCEPT Spotify.
Please take this request seriously and look into your coded routines for acquiring or hooking into the CoreAudio as part of a bluetooth coreaudio update call or similar function. I suspect that this it is likely you are not capturing the current state and/or change correctly due to either a change in the BT specification or the way in which new devices makes a BT connect API call. Please review your code and advise.
I am a Software Architect, but not a developer, but I can sense that this is a small adaption in your code and I am happy to help; either UAT, TEST any updates you may want to try. Hope you see this email as an encouragement to help fix this, and not as a complaint per se.
Hope to hear from you soon.