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Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1502304-audiofileopenurl
func AudioFileOpenURL (_ inFileRef: CFURL, _ inPermissions: Audio File Permissions, _ inFileTypeHint: Audio File Type ID, _ outAudioFile: Unsafe Mutable Pointer < Audio File ID?>) -> OSStatus. Parameters inFileRef. The URL of an existing audio file. inPermissions. The read-write permissions you want to assign to the file.
AudioFileOpenURL returns -43 on an existing file
https://www.py4u.net/discuss/1616920
AudioFileOpenURL returns -43 on an existing file. I have a step in my application where a user repeatedly hears three spoken digits. If I leave this step running for a while (for certain undefined values of "while"), my debug logs show this (irrelevant log entries removed): 2010-03-01 13: 44: 21.283 iPhoneHearChk[1236:207] AudioFileOpenURL returned 0 (for < file: …
AudioFile Class (AudioToolbox) | Microsoft Docs
https://docs.microsoft.com/en-us/dotnet/api/audiotoolbox.audiofile
AudioFile Derived Audio Toolbox. Audio Source Implements INativeObject IDisposable Remarks Use the Create, Open and OpenRead factory methods to create instances of this class. This class provides access to the encoder and decoder for compressed audio files. Constructors Constructors Audio File (Boolean)
ios - AudioFileOpenURL unable to open raw pcm file - …
https://stackoverflow.com/questions/14471059/audiofileopenurl-unable-to-open-raw-pcm-file
AudioFileOpenURL (myFileURL, kAudioFileReadPermission, 0, &player.playbackFile) where myFileURL is the URL pointing to where somePcm.pcm is, and player.playerbackFile is the AudioFileID. When I step through my code, playbackFile points to memory location 0x0000000000000. Basically it cannot open the file and represent it as an …
Core Audio Essentials - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html
Audio File Stream Services lets you build applications that can parse streams, such as for playing files streamed over a network connection. Core Audio Clock Services supports audio and MIDI synchronization as well as time-base conversions.
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