如何在iPhone上播放AMR音频文件
我尝试使用 AVAudioPlayer 、 MPMoviePlayer 播放 AMR 文件，但无法播放它们。对于 AMR 文件，AVAudioPlayer 播放方法始终返回 NO，并且 MPMoveiPlayer 会尽快发布 MPMoviePlayerPlaybackDidFinishNotification正如它所演奏的那样。甚至尝试用 webview 玩 AMR 但没有成功。
还有其他方法可以播放 AMR 文件吗？根据这篇文章关于不同设备上的AMR音频文件播放问题< /a> iOS4.3以上不支持AMR，但是邮件应用如何播放AMR文件呢？
我尝试使用 ExtAudioFile 将 AMR 转换为 caf 文件，但收到错误代码 1718449215，我发现这意味着 kAudioFormatUnsupportedDataFormatError。
I have tried using AVAudioPlayer , MPMoviePlayer to play AMR files but unable to play them. AVAudioPlayer play method always returns NO for AMR files and MPMoveiPlayer post MPMoviePlayerPlaybackDidFinishNotification as soon as it is played. Even tried to play play AMR with webview but without success.
Is there any other way to play AMR files. According to this post About AMR audio file playing issue on different devices iOS4.3 above does not support AMR ,but how can mail app can play AMR files?
I tried converting AMR to caf file using ExtAudioFile ,but I am getting an error code 1718449215 which I found out that it means kAudioFormatUnsupportedDataFormatError.
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即使这是一个老问题，我仍然没有答案。
相反，我的方法是提前转换为 Wave，使用 Github 中的以下库
https://github.com/justinjing/RecordWAVToAMRDemo/blob/master/AmrConvertAndRecord/VoiceConvert/VoiceConverter.mm
Even it is an old question, I still do not have an answer.
Instead, my way is converting to wave in advance, with the use of the following library from Github
https://github.com/justinjing/RecordWAVToAMRDemo/blob/master/AmrConvertAndRecord/VoiceConvert/VoiceConverter.mm