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Audio Queue Services - Apple Developer
https://developer.apple.com/documentation/audiotoolbox/audio_queue_services
This document describes Audio Queue Services, a C programming interface in the Audio Toolbox framework, which is part of Core Audio. An audio queue is a software object you use for recording or playing audio. An audio queue does the work of: Connecting to audio hardware. Managing memory. Employing codecs, as needed, for compressed audio formats
Using Audio - Apple Developer
https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
Define a callback function for managing audio queue buffers. The callback uses Audio File Services to read the file you want to play. (In iOS 2.1 and later, you can also use Extended Audio File Services to read the file.) Instantiate the playback audio queue using the AudioQueueNewOutput function.
ios - Audio Queue Service Example using How to record ...
https://stackoverflow.com/questions/18162471/audio-queue-service-example-using-how-to-record-sound-in-mp3-format-in-iphone
The reason behind this is clearly explained in core audio documentation (page no 51 of core audio pdf). iOS contains the recording codecs listed in Table 2-5. As you can see, neither MP3 nor AAC recording is available. This is due to the high CPU overhead, and consequent battery drain, of these formats.
Core Audio Essentials - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html
Creating an Audio Queue Object. To use Audio Queue Services, you first create an audio queue object—of which there are two flavors, although both have the data type AudioQueueRef. You create a recording audio queue object using the AudioQueueNewInput function. You create a playback audio queue object using the AudioQueueNewOutput function.
Introduction - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/Introduction/Introduction.html
Audio Session Programming Guide, which explains how to specify important aspects of audio behavior for iOS applications. Audio Queue Services Programming Guide, which explains how to implement recording and playback in your application. Core Audio Data Types Reference, which describes the data types used throughout Core Audio. Audio File Stream …
Audio Queue Services 解读之 Playing Audio(上) - 简书
https://www.jianshu.com/p/d2ef4d15356c
Audio Queue Services 解读之 Playing Audio(上) 前言： 一直想研究一下Audio Queue Services，趁着过年这段时间有空就去研究一下，首选肯定是官方文档,下面是我读文档的时候翻译过来，自己一句一句翻译可以加深自己的理解记忆，同时又能方便大家，何乐而不为！; 由于文档内容较多，本文会分两篇介绍，避免 ...
使用Audio Queue Services录制和播放音频 - 简书
https://www.jianshu.com/p/beaef8a0321b
使用Audio Queue Services录制音频. 录制流程. 这里简单介绍一下录制的时候audio queue和硬件以及callback交互的步骤：. 硬件采集音频数据，将它填充到空的buffer中. audio queue将填充的数据告诉callback，硬件继续采集音频数据. 在callback中可以将数据存起来或者发 …
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