---
title: vDSP_IIRMonoLeft
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1645949-anonymous/vdsp_iirmonoleft
---

# vDSP_IIRMonoLeft

## Declaration

```occ
vDSP_IIRMonoLeft = 1
```