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Apple Developer Documentation

    https://developer.apple.com/documentation/audiotoolbox/1502718-audiofilegetproperty
    Discussion. Some Core Audio property values are C types and others are Core Foundation objects. If you call this function to retrieve a value that is a Core Foundation object, then this function—despite the use of “Get” in its name—duplicates the object.

iphone - AudioFileSetProperty returning ...

    https://stackoverflow.com/questions/8658386/audiofilesetproperty-returning-kaudiofileunsupportedpropertyerror-pty
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Apple Developer Documentation

    https://developer.apple.com/documentation/audiotoolbox/1501691-audiofilegetpropertyinfo
    Gets information about an audio file property, including the size of the property value and whether the value is writable.

Apple Developer Documentation

    https://developer.apple.com/documentation/audiotoolbox/audio_file_services
    This document describes Audio File Services, a C programming interface that enables you to read or write a wide variety of audio data to or from disk or a memory buffer. With Audio File Services you can: Create, initialize, open, and close audio files. Read and write audio files. Optimize audio files. Work with user data and global information.

iOS 音频流播(三) - 简书

    https://www.jianshu.com/p/af806688fc7c
    iOS 音频流播(三) 本篇我们介绍AudioFile和AudioFileStream。在第一篇技术栈的分析里,我们提到过AudioFile和AudioFileStream都可以用来解析采样率、码率、时长等信息,分离原始音频数据中的音频帧。 这两个都可以使用在流式播放中,当然,不仅限于流播,本地音频也一样可以使用。

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