由网友(10．眉眼朦胧)分享简介：我设计一个应用程序，可以记录回放在这两个平台上的iPhone和Android的短音频文件，以及希望任何其他智能手机。 I am designing an app that can record short audio files on iPhone and Android that can be played bac...

我设计一个应用程序，可以记录回放在这两个平台上的iPhone和Android的短音频文件，以及希望任何其他智能手机。

I am designing an app that can record short audio files on iPhone and Android that can be played back on both platforms, as well as hopefully any other smartphone.

现在，我使用* .caf的iLBC的codeC，因为我知道iPhone没有连接code MP3。

Right now I'm using *.caf with the iLBC codec, as I know the iPhone does not encode mp3.

有一个文件格式/ $ C $，我应该在这种情况下使用CC？

Is there a file format/codec that I should use in this case?

推荐答案

它曾经是，没有常见的音频编码格式为Android和iPhone。

It used to be that there were no common audio encoding formats for Android and iPhone.

iPhone：iPhone音频编码支持的格式

Android版本：的Andr​​oid支持的媒体格式

Android: Android supported media formats

但是Android 2.3.3增加了对AMR-WB和AAC支持：Android音频恩codeR AAC

But Android 2.3.3 adds support for AMR-WB and AAC: Android Audio Encoder AAC

请参阅媒体框架在的Andr​​oid 2.3.3 API变更

所以，我相信，如果你想互操作的Andr​​oid和iPhone设备之间可以处理的Andr​​oid 2.3.3限制AAC是您的格式选择。

So I believe AAC is your format choice if you want interop between Android and iPhone devices and can handle the Android 2.3.3 limitation.

否则，只需从列表中选择了覆盖面最广（在Android AMR-NB）或计划将录制的音频，以适当的格式。

Otherwise, just pick from the list for widest coverage (AMR-NB on Android) or plan on converting the recorded audio to a suitable format.

一个快速检查表明，AMR是专利，我以为AAC会有些专利保护为好。 PCM解码是在iPhone和Android手机大部分在较大的文件大小为代价的。

A quick check shows that AMR is patented and I assume AAC would have some patent coverage as well. PCM is decodable on iPhone and Android and most cellphones at the expense of larger filesize.