android 支持的声音格式详解

最新推荐文章于 2021-05-28 07:07:12 发布

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最新推荐文章于 2021-05-28 07:07:12 发布

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文章标签：移动开发

原文链接：http://www.cnblogs.com/rywx/archive/2011/10/18/2093819.html

本文探讨了Android设备上音频格式的支持情况，建议使用OGG、WAV和MP3格式，详细介绍了各种格式的特点和使用场景，强调了高质量音频对于用户体验的重要性。

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或许你和我一样，都曾为android头痛的声音格式烦恼，虽然支持的格式那么多，声音大小，压缩格式，无一不影响着它的正常播放，

What Audio Formats Does Android Support?
Well, there’s support on paper, there’s support in the emulator, and there’s support on the actual devices. On paper, Android supports the following file types (this is subject to change with new releases):
   * WAV (PCM uncompressed)
   * AAC (Apple iPod format, unprotected)
   * MP3 (MPEG-3)
   * WMA (Windows media audio)
   * AMR (Speech codec)    * OGG (Ogg Vorbis)*
   * MIDI (Instruments)
In reality, I’ve found that only the OGG, WAV, and MP3 formats work well in the emulator, and thus those are the only ones that I can recommend for application development. Android’s native audio format appears to be 44.1kHz 16-bit stereo. How- ever, since WAV files at that rate are huge, you should just stick to OGG or MP3 files (mono for voice or stereo for music). OGG files seem to work best for short clips like game sound effects.
Stay away from unusual rates like 8kHz because the resam- pling artifacts make those rates sound terrible. Use 11kHz, 22kHz, or 44.1kHz sampling rates for the best results. Remember that although the phone may have a tiny speaker, many of your users are going to be plugging in headphones (like an iPod), so you want your audio to be high quality.

转载于:https://www.cnblogs.com/rywx/archive/2011/10/18/2093819.html