Unable to control the volume of the bluetooth device - Bose revolve plus

[damjal]

I have the last OSMC distribution on a Raspberry pi 4.
My Bose Revolve + bluetooth speaker is connected but the volume is too low.
The problem is that I cannot control the volume of this Bluetooth device when I press the speaker button to increase or decrease the volume.

Thanks for your help.

[damjal]

Just to clarify, I have never had this problem with other devices like Android, Mac OS, blueray player…
Is there a non compatibility with this Bose speakers ?

[darwindesign]

Is Kodi’s internal volume reduced similar to this issue?

[solved] October update: Volume muted after update + reboot

I think the issue here is that Kodi has two different methods of controlling volume and the situation here is that the internal volume got adjusted down but the volume control is currently controlling CEC and not the internal volume so it is stuck at a low level. To elaborate, sans CEC amplifier type device, when you use the volume control on a remote or keyboard Kodi adjusts the signal level it is sending out. So in a basic type setup with just a TV, a Kodi box, and a rf remote, the TV’s volume…

[damjal]

With your advice, i have installed the official remote application for androïd on my phone and i can now control the volume, thanks.
But unfortunately when it is at 100% it is still very low, even when I plug the raspberry into the speaker with a mini jack.
Is there a control to increase the volume?

[sam_nazarko]

The Raspberry Pi output isn’t really a DAC, so this is somewhat expected. There are some HAT add-ons which can be used to improve audio output.

It might also be configurable with ALSA (amixer) – but I’m not completely certain

Sam

[damjal]

When I plug this speaker into the raspberry with a mini jack, I have no problem, I can control the volume from it or from the remote app and the sound is powerful as expected with this speaker.
It’s really a bluetooth problem.

Perhaps the solution would be to use a bluetooth dongle plugged into the raspberry?

[sam_nazarko]

I don’t see that using an external Bluetooth adapter would change anything unfortunately.

[omejo]

1. Login to your osmc device with ssh
2. install alsa-utils (“sudo apt install alsa-utils”)
3. type “alsamixer -D bluealsa” and your terminal should show the AlsaMixer that allows you to adjust the mysterious 43% default volume to 100%