> For the complete documentation index, see [llms.txt](https://sonity.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sonity.gitbook.io/docs/soundmix.md). # SoundMix SoundMix are useful for hierarchical control over SoundEvents
[SoundMix](/docs/soundmix.md) objects are used for grouped control of e.g. volume or distance scale for multiple [SoundEvents](/docs/soundevent.md) at the same time.\ You can assign them in the [SoundEvent settings](/docs/soundevent.md#settings).\ Because [SoundMix](/docs/soundmix.md) use [modifiers](/docs/modifiers.md) they only calculate the values once when the [SoundEvent](/docs/soundevent.md) is started.\ If you want to have realtime volume control over sounds, use an AudioMixerGroup.\ To learn more, take a look at the [TemplateSoundVolumeManager](https://sonity.gitbook.io/docs/pages/x5ioYp59iaMMelgNSm6F#templatesoundvolumemanager.cs) script.\ All [SoundMix](/docs/soundmix.md) objects are multi-object editable. Example use: Set up a “Master\_MIX” and a “SFX\_MIX” where the Master\_MIX is a parent of the SFX\_MIX. **Notes**\ At the top of the [SoundMix](/docs/soundmix.md) there is a text field which you can fill with notes. **Modifiers**\ [Modifiers](/docs/modifiers.md) are used to control how [SoundEvents](/docs/soundevent.md) are played (e.g. volume, polyphony, fade in length etc).\ See [modifiers](/docs/modifiers.md) for more info. ### Sonity GUID Sonity uses cached GUIDs for object comparison.\ This solves problems where object equality isn't always the same when using e.g. addressables.\ The Sonity AssetPostprocessor automatically saves the GUIDs for objects.\ If you have any missing GUIDs (when upgrading) you can run:\ "Tools/Sonity 🔊/Tools/Reserialize - All Sonity Assets".\ Sonity GUID by [Tobias Johansson](https://www.knackelibang.com/)