---
title: vDSP_biquadm_ResetState
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.9+]
path: kernel/1579974-vdsp_biquadm_resetstate
---

# vDSP_biquadm_ResetState

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

## Declaration

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

## Parameters

- `__setup`: The filter state object whose state you wish to reset.