# ExtAudioFileTell(_:_:) Gets an audio file’s read/write position. ``` func ExtAudioFileTell(_ inExtAudioFile: ExtAudioFileRef, _ outFrameOffset: UnsafeMutablePointer) -> OSStatus ``` ## Parameters `inExtAudioFile` The extended audio file object that represents the file you are working with. `outFrameOffset` On output, the file’s current read/write position in sample frames. Read/write position is specified in the sample rate and frame count of the file’s audio data format—not your application’s audio data format. ## Return Value A result code. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)