Xiaomi’s custom Android software – MIUI – looks strikingly different from stock Android. Other than appearance, MIUI also features a slew of extra features added on top of AOSP builds to make the user experience more convenient. The update cycle of MIUI, however, doesn’t coincide with that of Android and Xiaomi focuses on improving the existing Android features while adding its own new features in discrete updates to MIUI independent of the Android version. MIUI’s next incremental version update – MIUI 12 – has just started rolling out for select smartphone models globally and it brings aesthetic improvements and enhanced security features over MIUI 11.
With the MIUI 12 beta ROMs in China, Xiaomi is testing a new Sound assistant feature that allows users to play audio from multiple sources simultaneously. Similar to the Volume Mixer on Windows, the feature also allows adjusting the volume of multiple audio sources that are playing at the same time instead of controlling the entire system’s volume at once.
To toggle the feature, users can enable it from Settings > Sound & vibration and then tap on the round music icon placed opposite the volume slider. The activates a grid of multiple sliders for each app that’s playing audio.
Some of the use-cases for separate volume controls for separate apps include ensuring audio from an app running in the background – Music, for instance – isn’t paused when you’re scrolling through social media and a video post comes up or while you are viewing a received media in a messenger like WhatsApp. At the same time, you can also disable volume ducking i.e. lowering of volume when a notification arrives. In addition, the Sound assistant can also be useful for individually managing the volumes of parallelly opened apps in multi-window or using MIUI 12’s new floating window feature.
Besides the MIUI 12 China beta ROMs, the feature has also been ported to Xiaomi.eu, a custom ROM based on MIUI’s Chinese beta build. The feature will also be available for the stable versions of MIUI 12 globally. XDA Senior Member kacskrz adds this feature will come to Xiaomi, Redmi, and POCO devices running Xiaomi’s Android skin but only those supported processors including the Snapdragon 865, Snapdragon 855/855+, Snapdragon 845 and Snapdragon 765/765G.
Source: Mi Community