01-01-2024, 02:57 AM
(12-31-2023, 10:35 AM)Chiny Wrote: Two other things have been suggested as a cause of bluetooth audio stuttering:
But it works. Hope this helps others.
- Busy wifi enviroment. It is busy around my moodeaudio R Pi, multiple networks, multiple wifi gadgets and within 150mm, a Zigbee transmitter.
- R Pi Zero 2W not having enough cpu grunt. My R Pi Zero 2W is loafing along with mpd being the most demanding (3% cpu) and bluealsa next (at 1.2%).
Happy New Year
Hi Chiny,
The issue might indeed be caused by other 2.4 GHz/noisy devices in the direct vicinity. What happens, for example, when you move the Pi to a quieter place (i.e. with more distance from your other 2.4 GHz devices)? CPU capacity shouldn't be an issue as the (quad-core) processor of the Zero 2W has nearly the same specs as the one used in the Pi 3B.
Transmissions with lower SBC encoding quality settings tend to be more stable because they are using less bandwidth. XQ+ mode for example needs roughly 60% more bandwidth than the standard setting "high" (which is by the way also the standard quality used by most bluetooth sources like PCs/smartphones).
Moreover the signal quality/range of the internal wifi/bluetooth of the Zero 2W is not the best. Infrequent minor dropouts once or twice an hour might be expected due to these limitations (e.g. with surrounding WLANs). Connecting an external USB bluetooth dongle rather than using the internal one usually leads to a more stable transmission - and might be a better solution in your case than choosing a quality lower than "high".
Happy New Year :-)
