---
title: vDSP.WindowSequence.hanningNormalized
framework: accelerate
role: symbol
role_heading: Case
path: accelerate/vdsp/windowsequence/hanningnormalized
---

# vDSP.WindowSequence.hanningNormalized

The normalized-Hann window, used to reduce spectral leakage prior to discrete Fourier transform.

## Declaration

```swift
case hanningNormalized
```

## See Also

### Related Documentation

- [Reducing spectral leakage with windowing](accelerate/reducing-spectral-leakage-with-windowing.md)
- [vDSP_hann_window](accelerate/vdsp_hann_window.md)
- [vDSP_hann_windowD](accelerate/vdsp_hann_windowd.md)

### Enumeration Cases

- [vDSP.WindowSequence.blackman](accelerate/vdsp/windowsequence/blackman.md)
- [vDSP.WindowSequence.hamming](accelerate/vdsp/windowsequence/hamming.md)
- [vDSP.WindowSequence.hanningDenormalized](accelerate/vdsp/windowsequence/hanningdenormalized.md)