Borg said:I haven't done anything like this before but the first thing that I would do is check to see if you have a proper driver installed on the Pi.
sudo usermod -a -G bluetooth piThere could be several reasons for this issue. First, make sure that the Bluetooth speaker is selected as the default audio output device on your Raspberry Pi 4. You can do this by going to the audio settings in the system preferences. Additionally, check the volume levels on both the Raspberry Pi 4 and the Bluetooth speaker to ensure they are not muted or set too low.
Not all Bluetooth speakers are compatible with the Raspberry Pi 4. Make sure that your Bluetooth speaker supports the A2DP (Advanced Audio Distribution Profile) or HSP (Headset Profile) Bluetooth profiles, as these are the most commonly supported profiles for audio streaming. You can usually find this information in the product specifications or user manual of your Bluetooth speaker.
It is possible that the necessary audio drivers for your Bluetooth speaker are not installed on your Raspberry Pi 4. Make sure that you have the appropriate drivers installed by checking the manufacturer's website or the Raspberry Pi forums for instructions on how to install the drivers.
Interference from other electronic devices or physical obstructions can sometimes affect the Bluetooth connection between your Raspberry Pi 4 and the Bluetooth speaker. Try moving the devices closer together, away from other electronic devices, or in a different location to see if this resolves the issue.
If the Bluetooth service is not running on your Raspberry Pi 4, it may prevent the Bluetooth speaker from connecting and playing sound. You can check if the Bluetooth service is running by opening a terminal window and entering the command "sudo service bluetooth status". If the service is not running, you can start it by entering the command "sudo service bluetooth start".