Here’s a quick tip for people using Huawei or Honor phones.
Huawei recently released EMUI version 18.104.22.1686 as an OTA update, which I applied once it was offered as an upgrade option.
Once I installed that OS upgrade, however, I noticed that whenever I listened to music or podcasts using a Bluetooth headset or stereo speakers, there was a new and very noticeable ‘echoing’ effect on the audio.
It appears this was due to the addition of Huawei Histen, a 3D audio/equaliser feature, which apparently will add 3D audio effects when listening on wired headphones of various varieties — however this is supposed to be disabled on Bluetooth devices.
I spent several days fruitlessly googling how to disable Histen, but with no luck. Eventually, through trial and error, I discovered a workaround — simply plug in a pair of wired headphones, go into Settings -> Sounds -> Huawei Histen sound effects, and choose “Natural sound”. Hey presto, next time you use Bluetooth headphones, it should no longer have the echo.