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# vDSP_biquadm_ResetState

Resets the filter state of a single-precision multichannel biquadratic IIR filter object.

```
extern void vDSP_biquadm_ResetState(vDSP_biquadm_Setup __setup);
```

## Parameters

`__setup`

The filter state object whose state you wish to reset.

## Discussion

The `setup` object must be a valid object, previously initialized by a call to the <doc://com.apple.documentation/documentation/kernel/1579945-vdsp_biquadm_createsetup> function. Upon return, all internal state is reset to the values it had when it was first initialized.

---

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