3 Replies Latest reply on Dec 20, 2017 6:20 AM by Intel Corporation

    Intel Bluetooth drivers - how to control protocols in use

    rudolffischer

      Hi all

      I have a Dell XPS 13 9350 and all my music on the laptop is encoded with aac. My bluetooth speaker is a Denon Envaya which supports aac over Bluetooth.

      I would like to know how I can ensure that the aac files on the laptop are sent to the speakers as raw (unmodified) aac and decoded in the speaker (which I guess would be the point of implementing the aac protocol in the Bluetooth audio profile.

       

      I have searched the web intensively for an answer to this question but got varying answers. The common ground seems to be that aac encoded files get decompressed to 44.1kHz audio and then are reencoded to aac for the transmission to the speaker / headphone. This of course is suboptimal.

       

      I also found a rather obscure DELL Bluetooth app called Network_Application_100J9_WN32_17.1.1530.31_A00.exe which apparently adds aptx functionality to the Intel Bluetooth Drivers. It does report aptx use if the speaker supports aptx, but results in severe dropouts, when a non aptx capable speakere is connected.

       

      So the whole audio over Bluetooth thing seems to be quite a mess. Does anyone know if there is any intention on the Intel side to clear up this mess in the near future. It looks like a fairly easy task

      - aptx is owned by Qualcomm and is freely available now

      - Sony's LDAC is also freely availabel

       

      So it would be easy to integrate the major bluetooth audio protocols into the driver stack and give the user an interface with which he can actually control the protocols used in the audio link.