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# vDSP.WindowSequence.blackman

The Blackman window, used to reduce spectral leakage prior to discrete Fourier transform.

```
case blackman
```

## See Also

  <doc://com.apple.accelerate/documentation/Accelerate/reducing-spectral-leakage-with-windowing>

[`extern void vDSP_blkman_window(float *__C, vDSP_Length __N, int __Flag);`](/documentation/Accelerate/vDSP_blkman_window)

Creates a single-precision Blackman window.

[`extern void vDSP_blkman_windowD(double *__C, vDSP_Length __N, int __Flag);`](/documentation/Accelerate/vDSP_blkman_windowD)

Creates a double-precision Blackman window.


---

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