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# taperedMerge(_:_:)

Returns the result of a tapered merge between two single-precision vectors.

```
static func taperedMerge<T, U>(_ vectorA: T, _ vectorB: U) -> [Float] where T : AccelerateBuffer, U : AccelerateBuffer, T.Element == Float, U.Element == Float
```

## Parameters

`vectorA`

The first vector to merge.

`vectorB`

The second vector to merge.

## Return Value

The result of the tapered merge operation.

## Discussion

The following code performs a tapered merge between two vectors that represent sine waves at different frequencies:

```swift
let count = 1024

let vectorA: [Float] = (0 ..< count).map {
    return sin(Float($0) * 0.4)
}

let vectorB: [Float] = (0 ..< count).map {
    return sin(Float($0) * 0.025)

let tapered = vDSP.taperedMerge(vectorA, vectorB)
```

The following image shows the result of the tapered merge in `tapered`.

![Graphic showing the tapered merge from a high-frequency sine wave to a low-frequency sine wave.](images/com.apple.accelerate/media-3681541@2x.png)

---

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