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What's the reason of using Circular Buffer in iOS Audio ...
https://stackoverflow.com/questions/30691684/whats-the-reason-of-using-circular-buffer-in-ios-audio-calling-app
There is another good reason for using Circular Buffer. In iOS, if you use callbacks (Audio unit) for recording and playing audio (In-fact you need to use it if you want to create a real-time audio transferring app) then you will get a chunk of data for a specific amount of time (let's say 20 milliseconds) from the recorder callback.
Audio Unit Circular buffering | Apple Developer Forums
https://developer.apple.com/forums/thread/73560
[iOS] OR [macOS] OR [Xcode] Multiple tags with AND [iOS][macOS][Xcode] ... While there are tons of information on how to use a circular buffer on the RemoteIO Audio Unit, by way of the callbacks, I don't see any immediately obvious way how to do this with an AUAudioUnit subclass. ... such that they copy the data to a circular buffer. ...
A simple, fast circular buffer implementation for audio ...
https://atastypixel.com/a-simple-fast-circular-buffer-implementation-for-audio-processing/
A simple, fast circular buffer implementation for audio processing. Circular buffers are pretty much what they sound like – arrays that wrap around. They’re fantastically useful as scratch space for audio processing, and generally passing audio around efficiently. They’re designed for FIFO (first-in-first-out) use, like storing audio coming in the microphone for …
VU meter AUAudioUnit | Apple Developer Forums
https://developer.apple.com/forums/thread/39193
On the other hand in the controller (swift) create a timer for a given frequency, get the circular buffer from the AudioUnit and consume the circular buffer, then do what ever you want with the data (any interaction with the main thread via dispatch_async) Am I right? Posted 5 years ago by FAC Add a Comment
Avoiding Buffer Overflows and Underflows - Apple …
https://developer.apple.com/library/archive/documentation/Security/Conceptual/SecureCodingGuide/Articles/BufferOverflows.html
Buffer overflows in one operating system’s help system could be caused by maliciously prepared embedded images. A commonly-used media player failed to validate a specific type of audio files, allowing an attacker to execute arbitrary code by causing a buffer overflow with a carefully crafted audio file. [1 CVE-2006-1591 2 CVE-2006-1370]
Circular buffer - Wikipedia
https://en.wikipedia.org/wiki/Circular_buffer
Some implementations of the circular buffer use fixed-length elements that are bigger than 8-bit bytes—16-bit integers for audio buffers, 53-byte ATM cells for telecom buffers, etc. Each item is contiguous and has the correct data alignment , so software reading and writing these values can be faster than software that handles non-contiguous and non-aligned values.
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