软件开发是我的本职工作，这一年中的绝大多数时间肯定是献给她了，毕竟她是我的衣食父母，我养家糊口得靠她呀。本职工作不仅要花绝大多数时间做，而且还要做好。去年这个时候我从APP语音开发切到Android手机平台上的音频软件开发，主要是在音频DSP上开发音频软件。那时我对手机平台不熟，对Android系统不熟，对DSP不熟，有很多新东西要学，也曾怀疑过自己选择做Android手机平台上音频软件的正确性。现在一年过去了，我觉得选择是正确的。虽然还是做音频开发，但是现在是在更主流更大众的Android手机平台上开发，扩展了知识面，而且主要是在底层的DSP上开发（DSP不像ARM那样频率高内存大，而是频率低内存小，这就要求在写代码时有更多的技巧，同样的事情在DSP上开发可能要比在ARM上多花不少时间，这对能力的要求更高），能力也提高了。这一年下来做了不少事情，我自己觉得主要有以下收获：
1）虽然还是做音频软件开发，但是已经切到在更主流的安卓手机平台上做音频。经过一年的实践，对安卓手机上音频相关的软硬件有了更深的理解。音频子系统可以说是安卓多媒体系统中最复杂的子系统了。外设多，有听筒（earpiece）、扬声器（speaker）、有线耳机、蓝牙耳机等。使用场景多，听音乐、录音、打电话等，其中打电话又分为传统语音通信和APP语音通信（如微信语音），传统语音通信又分为2/3G语音通信和4G VoLTE语音通信。要把这些都做好是非常不容易的。
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