音频声音太低Android应用程序 [英] Audio Sound Too Low in Android App

问题描述

我记录了一些音频文件我的应用程序使用，约50，所以我想不会再记录所有的人。我最近使用的Soundpool发挥真正的设备，而不是仿真器上的音频文件，你几乎可以听到他们。在我的电脑音量设置为最大和设备以最大的仿真器，我可以精听。我应该试着大声录制的文件或有另一种选择？

I recorded some audio files to use in my app, around 50, so I would like to not record all of them again. I recently used SoundPool to play the audio files on a real device instead of the emulator and you can barely hear them. On the emulator with my PC volume set to max and device to max, I can hear it fine. Should I try to record the files louder or is there another option?

推荐答案

我发现，当针对移动设备（和廉价/小笔记本音箱对于这个问题），最好是做两件事情给你的音频：

I've found that when targeting mobile devices (and cheap/small laptop speakers for that matter), it is best to do two things to your audio:

• 的COM pression：我的意思不是数据通信pression，我的意思是动态对比度COM pression。这将删除一些记录响亮而软部件之间的高度差，使这一切被听到更好。


• 正常化：：当你正常化的音频，你把声音最响亮的一部分，缩放整个音频剪辑向上，以便在最响亮的部分是可以被存储在音频文件中最响亮

• Compression: I do not mean data compression, I mean dynamic contrast compression. This will remove some of the level differences between loud and soft parts of the recording, allowing it all to be heard better.
• Normalization: When you normalize audio, you take the loudest part of the audio, and scale the entire audio clip up so that the loudest part is at the loudest that can be stored in the audio file.

您可以用任何音频编辑软件两者都做这些很容易，比如无畏。

You can do both of these easily with any audio editing software, such as Audacity.

最后，您还应该记住这样的小喇叭的可重复执行的频率。结果
大多数音箱都建在考虑演讲。正因为如此，你会发现，他们往往是在为700Hz-2.5KHZ范围内最响亮的。

Finally, you should also keep in mind the reproduceable frequencies on such small speakers.
Most of these speakers are built with speech in mind. Because of this, you will find that they tend to be the loudest in the 700Hz-2.5kHz range.

也就是说，如果你的声音效果在频率低（想想低音），那么这将是几乎不可能听到他们对手机的小喇叭不能复制这样的低频。

That is, if your sound effects are low in frequency (think bass), then it will be almost impossible to hear them on a phone's small speaker which cannot reproduce such low frequencies.

如果您有关于此事的更多疑问，请访问 http://avp.stackexchange.com/ 。

If you have more questions on the matter, please visit http://avp.stackexchange.com/.

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