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ios - AVAudioPlayer play returns false on hardware - …
https://stackoverflow.com/questions/13618810/avaudioplayer-play-returns-false-on-hardware
AVAudioPlayer play returns false on hardware. Ask Question Asked 9 years, 1 month ago. Active 9 years, 1 month ago. Viewed 2k times 4 1. I'm trying to write some very simple code to play an audio file. The code works fine on the iPad2 simulator. On my iPad2 device however, [audooPlayer play] returns false and no audio is to be heard.
AVAudioPlayer Class (AVFoundation) | Microsoft Docs
https://docs.microsoft.com/en-us/dotnet/api/avfoundation.avaudioplayer
An instance of the AVFoundation.IAVAudioPlayerDelegate model class which acts as the class delegate. Description of the object, the Objective-C version of ToString. A value that increases while the AVAudioPlayer is playing or paused. Used for synchronizing multiple audio players.
AVPlayer vs. AVAudioPlayer
https://www.py4u.net/discuss/1596933
The AVAudioPlayer cannot play from an iPod library url. AVPlayer has no volume property and requires the use of the system volume setting which can be controlled only by the hardware switch or an MPVolumeView. But you can set the mix volume of AVAudioPlayer.
iOS AVAudioPlayer(音频播放) - 简书 - jianshu.com
https://www.jianshu.com/p/b6696495504b
iOS AVAudioPlayer(音频播放) AVAudioPlayer. 在iOS程序中，音频播放随处可见，有的声音只有1秒，有的声音好几分钟 。iOS支持的音频格式AAC、ALAC、IMA4、linear、MP3。 AVAudioPlayer类用于回放音频数据。是一个易于使用的类，它提供了大量的功能。
Using Audio - Apple Developer
https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
When using hardware-assisted decoding, the device can play only a single instance of one of the supported formats at a time. For example, if you are playing a stereo MP3 sound using the hardware codec, a second simultaneous MP3 sound will use software decoding. Similarly, you cannot simultaneously play an AAC and an ALAC sound using hardware.
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