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Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1502135-audiofilewritepackets
A pointer to an array of packet descriptions for the audio data. Not all formats require packet descriptions. If no packet descriptions are required, for instance, if …
ios - Is it possible to use AudioFileWritePackets to write ...
https://stackoverflow.com/questions/25544431/is-it-possible-to-use-audiofilewritepackets-to-write-to-a-file-without-replacing
My code is based off of the code in Chapter 6 of Learning Core Audio. This function is designed to take an input file and copy the packets form that file to an output file. I am using it to write ...
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/audio_file_services
Writes packets of audio data to an audio data file. Getting and Setting Audio File Properties func AudioFileGetProperty(AudioFileID, AudioFilePropertyID, UnsafeMutablePointer<UInt32>, UnsafeMutableRawPointer) -> OSStatus Gets the value of an audio file property.
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1503274-audiofilereadpackets
Memory that you allocate to hold the read packets. Determine an appropriate size by multiplying the number of packets requested (in the io Num Packets parameter) by the maximum (or upper bound for) packet size of the audio file. For uncompressed audio formats, a packet is …
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/audio_file_stream_services
Overview. Audio File Stream Services provides the interface for parsing streamed audio files—in which only a limited window of data is available at a time. Audio file streams, by nature, are not random access. When you request data from a stream, earlier data might no longer be accessible and later data might not yet be available.
How to properly write raw PCM data asynchronously on iOS
http://teragonaudio.com/article/How-to-properly-write-raw-PCM-data-asynchronously-on-iOS.html
After processing the samples, we wanted to write them to a CAF file using the AudioFileWritePackets () call, which is part of the Audio File Services API. This code worked fine on the iPhone Simulator, but on the actual hardware caused stuttering during playback.
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