最小的音频文件格式是什么？
我知道这不是一个具体的编程问题，但我希望有人能给我一个建议。我的应用程序（iPhone 和 Blackberry 应用程序）使用大量音频文件。我需要一个适合我的应用程序的解决方案，以节省一些空间。
.aac 是最适合 iPhone 的音频格式吗？是最小的吗？它也适合黑莓吗？
有没有什么方法可以使音频文件更小而不损失很多声音质量？比特率、采样频率和通道怎么样？它们真的重要吗？
I know this is not a specific programming question but I hope someone can give me a suggestion. My applications (iPhone and Blackberry applications) use a lot of audio files. I need a solution for my applications in order to save some spaces.
Is it right that .aac is the most suitable audio format for iPhone? Is it the smallest one? It it also suitable for Blackberry?
Is there any way to make the audio files smaller without losing a lot of quality of the sounds? How about the bitrate, sampling freq and channels? Are they really matter?
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AAC 是一种适合 iPhone 的良好格式。 iOS 已针对播放 AAC 进行了优化。
是的，比特率、采样频率和通道数等都是影响音频文件大小的因素。
您应该做的是将音频转换为具有不同设置的不同格式，然后在真实设备上播放它们，看看质量是否可以接受。
抱歉，没有简单的答案。实验。
AAC is a good format for the iPhone. The iOS is optimized to play AAC.
Yes, things like bitrate, sampling frequency and number of channels are all factors in the audio file's size.
What you should do is take your audio and convert it to different formats with different settings and then just play them on a real device to see if the quality is acceptable.
Sorry, there is no simple answer. Experiment.
取决于您编码的音频类型。对于语音，所有主要智能手机都支持 AMR，并且通常会提供最小的文件大小。质量下降非常明显，不适合音乐，但它针对语音录制进行了优化（黑莓上的语音笔记应用程序使用它作为文件格式），因此它会给您带来非常好的口语音频效果。
Depends on what type of audio you're encoding. For speech, AMR is supported by all major smartphones, and will generally give the smallest file sizes. Quality degredation is noticeable enough that it's not suitable for music, but it's optimized for voice recording (the voice notes app on the BlackBerry uses it as its file format) so it'll give you very nice results with spoken audio.