# Sound input oscillator
## 
Sound input
Converts the sound input level to a property value.
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The Sound input oscillator uses the default sound interface, but you can change it in *Preferences*. Open the menu *Liberation -> Preferences.*
Under the *Sound Input* settings, you can select which sound interface you would like to use, along with some other settings for adjusting the volume level.
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* **range min / range max** - the minimum and maximum values the waveform is mapped onto
* **channel** - If your sound interface has more than one input channel, you can select here which one you're picking up.
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It's a fun technique to get multiple sound feeds from the mixing desk, that way you can have different clips responding to different musical instruments.
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{% hint style="info" %}
You can only use one sound interface at a time across all *Sound Inputs (*selected in the *App Settings* panel). If you want to use more than one interface for this, on macOS you can [create an Aggregate Device](https://support.apple.com/en-gb/HT202000) to combine inputs into a single virtual sound source. (There are many apps on Windows that will do this too, but I haven't tried them).
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* **clamp min / clamp max** - use this to choose which range of levels you want to respond to. You shouldn't need to adjust this if the gate and limit settings (in the *App Settings* panel) are properly adjusted, but they can be used for some creative effects.
{% hint style="info" %}
You'll see a little microphone icon on the clip button whenever it has a *Sound Input* oscillator.
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