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c++ - Core Audio Ring Buffer Data comes out blank - …
https://stackoverflow.com/questions/67402878/core-audio-ring-buffer-data-comes-out-blank
Core Audio Ring Buffer Data comes out blank. Ask Question Asked 8 months ago. Active 8 months ago. Viewed 70 times 1 I am working off a demo from the book "Learning Core Audio: A Hands-On Guide to Audio Programming for Mac and iOS." Chapter 8 shows how to set up a simple AudioUnit graph to play through from the AUHAL input unit to an output unit.
c++ - Ring buffer for audio processing - Code Review Stack ...
https://codereview.stackexchange.com/questions/92810/ring-buffer-for-audio-processing
Below is my source code for the implementation of a Ring/Circular buffer for use in audio processing. I have been using this implementation for several months now but I have some doubts about the efficiency of the insertion and removal functions as well as the correctness/necessity of my usage of std::atomic<size_t>type index variables.The execution …
c++ - Ring buffer for audio processing (follow up) - Code ...
https://codereview.stackexchange.com/questions/93176/ring-buffer-for-audio-processing-follow-up
Ring buffer for audio processing. template <typename T> class Array { public: Array (); Array (std::size_t const& cap); Array (Array<T> const& other); Array<T>& operator= (Array<T> other); virtual ~Array (); void swap (Array<T>& first, Array<T>& second); std::size_t const& Capacity ()const; void Resize (std::size_t cap); T& operator [] (std::size_t const& index); …
A simple, fast circular buffer implementation for audio ...
https://atastypixel.com/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 later playback or processing.
Buffer timing in core audio (WASAPI)
https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/b04da0e9-3033-4bc6-8391-41a5040be0a2/buffer-timing-in-core-audio-wasapi
I'm using Windows Core Audio functions, mostly WASAPI, to render an exclusive stream, following the example in Exclusive Mode Streams. All the calls appear to work, and I do get sound out, but with glitches. Details: Per the example, get the first buffer, fill it, release it, then do Start ... · Since you're in exclusive mode, you will be given a ...
GitHub - sbooth/SFBAudioUtilities: Core Audio, Audio ...
https://github.com/sbooth/SFBAudioUtilities
A class wrapping a Core Audio AudioBufferList with a specific format, frame capacity, and frame length. SFB::CAChannelLayout. A class wrapping a Core Audio AudioChannelLayout. SFB::CAPropertyAddress. A class extending the functionality of a Core Audio AudioObjectPropertyAddress. SFB::CAStreamBasicDescription.
Audio producer threads with OSX AudioComponent consumer ...
https://www.py4u.net/discuss/1498570
My strategy would be to have a separate thread (or threads) generating your LPCM audio in real-time and writing it to a suitably sized ring buffer. The core audio thread would read from this ring buffer. If the reader (core audio thread) requests more audio than is available then you get a drop out (buffer underrun), because the reader cannot wait. This indicates that you need a larger …
audiograph
http://zerokidz.com/audiograph/docs/audiograph.pdf
the audio processing graph. Core Audio Setup The original MixerHost application is a great resource setting up Core Audio programs in iOS. The underlying structure from MixerHost has been left intact in this project. The key steps are: 1. Setup the audio session 2. Define and configure audio units and stream formats (asbd’s) 3.
Daniel Kennett - Core Audio: AUGraph Basics in CocoaLibSpotify
http://ikennd.ac/blog/2012/04/augraph-basics-in-cocoalibspotify/
Instead, we need to store the audio provided by libSpotify into a buffer which we’ll then read from when Core Audio requests some audio data. To solve this in an elegant manner, CocoaLibSpotify includes a ring buffer , which is a special kind of buffer that allows data to be read and written to is without reallocating memory, which can be expensive.
GstAudioRingBuffer - freedesktop.org
https://gstreamer.freedesktop.org/documentation/audio/gstaudioringbuffer.html
The ringbuffer abstracts a circular buffer of data. One reader and one writer can operate on the data from different threads in a lockfree manner. The base class is sufficiently flexible to be used as an abstraction for DMA based ringbuffers as well as a pure software implementations.
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