---
title: vDSP_biquad_Setup
framework: accelerate
role: symbol
role_heading: Type Alias
path: accelerate/vdsp_biquad_setup
---

# vDSP_biquad_Setup

A data structure that contains precalculated data for use by the single-precision cascaded biquadratic IIR filter function.

## Declaration

```swift
typealias vDSP_biquad_Setup = OpaquePointer
```

## See Also

### Creating a single-channel biquadratic filter setup

- [vDSP_biquad_SetupD](accelerate/vdsp_biquad_setupd.md)