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iPhone AVAudioPlayer failed to find codec - Stack Overflow
https://stackoverflow.com/questions/2955259/iphone-avaudioplayer-failed-to-find-codec
The files use the mulaw codec with 2:1 compression. These wav files are dynamically created by a seperate process so there is no way for me to preconvert the files to a different format or codec, I need to be able to play them as is. I am using an AVAudioPlayer instance initialized as follows:
Using Audio - Apple Developer
https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
The AVAudioPlayer class uses the Objective-C declared properties feature for managing information about a sound—such as the playback point within the sound’s timeline, and for accessing playback options—such as volume and looping. For example, you can set the playback volume for an audio player as shown here:
How To Play Sounds - AVAudioPlayer Tutorial (For 2019)
https://codewithchris.com/avaudioplayer-tutorial/
In this AVAudioPlayer tutorial, we’re going to go through an example of playing a sound file that you’ve added to your Xcode project. You’ll see that it’s actually a really simple task to accomplish! Adding the framework to your project The first thing we’ll need to do is to add the AVFoundation framework to the
Core Audio Essentials - Apple Developer
https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/CoreAudioEssentials/CoreAudioEssentials.html
Audio Queue Services lets you record, play, pause, loop, and synchronize audio. It employs codecs as necessary to deal with compressed audio formats. The AVAudioPlayer class provides a simple Objective-C interface for playing and looping audio as well as implementing rewind and fast-forward.
AVAudioPlayer、AVPlayer和AVQueuePlayer的使用 - 简书
https://www.jianshu.com/p/16432badb8b4
AVAudioPlayer、AVPlayer和AVQueuePlayer的使用 AVAudioPlayer 简述. AVAudioPlayer是属于 AVFundation.framework 的一个类，它的功能类似于一个功能强大的播放器，AVAudioPlayer每次播放都需要将上一个player对象释放掉，然后重新创建一个player来进行播放,AVAudioPlayer 支持广泛的音频格式，主要是以下这些格式。
Playing Audio on an iOS 4 iPhone using AVAudioPlayer ...
https://www.techotopia.com/index.php/Playing_Audio_on_an_iOS_4_iPhone_using_AVAudioPlayer_(Xcode_4)
The AV Foundation framework supports the playback of a variety of different audio formats and codecs including both software and hardware based decoding. Codecs and formats currently supported are as follows: AAC (MPEG-4 Advanced Audio Coding) ALAC (Apple Lossless) AMR (Adaptive Multi-rate) HE-AAC (MPEG-4 High Efficiency AAC)
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