---
title: vDSP_biquad_SetupD
framework: kernel
role: symbol
role_heading: Type Alias
path: kernel/vdsp_biquad_setupd
---

# vDSP_biquad_SetupD

## Declaration

```occ
typedef struct vDSP_biquad_SetupStructD *vDSP_biquad_SetupD;
```