---
title: "makeBlockBuffer(copying:)"
framework: coremedia
role: symbol
role_heading: Instance Method
path: "coremedia/cmmutabledatablockbuffer/memorypool/makeblockbuffer(copying:)"
---

# makeBlockBuffer(copying:)

Creates a block buffer by copying the given audio buffer list.

## Declaration

```swift
final func makeBlockBuffer(copying audioBuffers: UnsafePointer<AudioBufferList>) -> CMMutableDataBlockBuffer
```