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本帖最后由 chaos_xie 于 2021-7-1 21:39 编辑
我看到的说法是android用的是Fraunhofer FDK,效果不及Apple用的。
还有些Android设备或者数播用的硬件AAC编码器,质量很难保证,通常认为低于Fraunhofer FDK的AAC编码质量。
摘自wiki
The Android-targeted implementation of the Fraunhofer AAC encoder uses fixed-point math and is optimized for encoding on embedded devices/mobile phones. The library is currently limited to 16-bit PCM input. Other versions of the Fraunhofer encoder, like the one included in Winamp, are optimized for encoding music on desktop-class processors. Those versions of the encoder, however, are not open source and require a commercial license.
Android的实现用的是定点数,看来音质肯定是受影响的。面向桌面级CPU的编码器的实现不是开源的,需要授权。
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