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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.
Audio Queue Services - Apple Developer
https://developer.apple.com/documentation/audiotoolbox/audio_queue_services
Audio Queue Services enables you to record and play audio in linear PCM, in compressed formats (such as Apple Lossless and AAC), and in other formats for which users have installed codecs. Audio Queue Services also supports scheduled playback and synchronization of multiple audio queues and synchronization of audio with video. Note
GitHub - shaojiankui/SpeakHere: Apple Audio Queue …
https://github.com/shaojiankui/SpeakHere
About. Apple Audio Queue Services Example,a copy SpeakHere from Apple, suppots Xcode5,6,7 Resources
Core Audio Services - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/WhatsinCoreAudio/WhatsinCoreAudio.html
Audio Queue Services lets you play or record audio. It also lets you pause and resume playback, perform looping, and synchronize multiple channels of audio. In iOS and OS X, Audio Queue Services consists of the functions, data types, and constants declared in the AudioQueue.hheader file in AudioToolbox.framework. Audio Unit Services
Apple Developer Documentation
https://developer.apple.com/documentation/audiotoolbox/1502689-audioqueuestart
The audio queue to start. inDeviceStartTime The time at which the audio queue should start. To specify a start time relative to the timeline of the associated audio device, use the mSampleTime field of the AudioTimeStamp structure. Use NULL to indicate that the audio queue should start as soon as possible. Return Value A result code.
Using Audio - Apple Developer
https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
iOS offers a rich set of tools for working with sound in your application. These tools are arranged into frameworks according to the features they provide, as follows:. Use the Media Player framework to play songs, audio books, or audio podcasts from a user’s iPod library. For details, see Media Player Framework Reference, iPod Library Access Programming Guide, …
几种播放音频文件的方式（四） —— 音频队列服务（Audio Queue …
https://www.jianshu.com/p/d0523fc28445
几种播放音频文件的方式（四） —— 音频队列服务（Audio Queue Services）（一） ... The mSampleTime field is in terms of the audio queue's sample rate, and relative to the time at which the queue has started or will start. ... 版本记录 前言 ios系统中有很多方式可以播放音频文件，这里我们就详细 ...
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 …
robovm/apple-ios-samples - GitHub
https://github.com/robovm/apple-ios-samples
SpeakHere demonstrates basic use of Audio Queue Services, Audio File Services, and Audio Session Services on the iPhone for recording and playing back audio. SquareCam: Audio & Video (Video) AVFoundation: SquareCam demonstrates improvements to the AVCaptureStillImageOutput class in iOS 5, highlighting the following features: State Restoration
Core Audio Essentials - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html
For example, Audio Queue Services specifies a template for a callback—that you can implement—that lets you get and react to messages when an audio queue object property changes. This callback template, declared in the AudioQueue.h header file, is shown in Listing 2-1. Listing 2-1 A template for a callback function
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