功能介绍：
PC端将.speex文件解码为*.wav文件
使用场景：
在MAC/Linux下Java JNI 调用C Speex，后端Java处理微信服务器下载下来的微信高清语音.speex解码为.wav
### 环境：
1. MAC OS 10.12.5/Linux
2. Xcode
3. Gcc
4. JDK 1.8
5. speex 1.2.0
### 步骤：
1. 安装libspeex
> 从https://www.speex.org/downloads/下载speex-1.2.0.tar.gz
> 解压speex-1.2.0.tar.gz
>cd pathto/speex-1.2.0
>./configure
```
...
config.status: creating win32/VS2003/libspeex/Makefile
config.status: creating win32/VS2003/speexdec/Makefile
config.status: creating win32/VS2003/speexenc/Makefile
config.status: creating win32/VS2005/Makefile
config.status: creating win32/VS2005/libspeex/Makefile
config.status: creating win32/VS2005/speexdec/Makefile
config.status: creating win32/VS2005/speexenc/Makefile
config.status: creating win32/VS2005/tests/Makefile
config.status: creating win32/VS2008/Makefile
config.status: creating win32/VS2008/speexdec/Makefile
config.status: creating win32/VS2008/tests/Makefile
config.status: creating win32/VS2008/libspeex/Makefile
config.status: creating win32/VS2008/speexenc/Makefile
config.status: creating include/speex/speex_config_types.h
config.status: creating ti/Makefile
config.status: creating ti/speex_C54_test/Makefile
config.status: creating ti/speex_C55_test/Makefile
config.status: creating ti/speex_C64_test/Makefile
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing libtool commands
Type "make; make install" to compile and install Speex
```
>sudo make install
```
Making install in libspeex
.././install-sh -c -d \'/usr/local/lib\'
/bin/sh ../libtool --mode=install /usr/bin/install -c libspeex.la \'/usr/local/lib\'
libtool: install: /usr/bin/install -c .libs/libspeex.1.dylib /usr/local/lib/libspeex.1.dylib
libtool: install: (cd /usr/local/lib && { ln -s -f libspeex.1.dylib libspeex.dylib || { rm -f libspeex.dylib && ln -s libspeex.1.dylib libspeex.dylib; }; })
libtool: install: /usr/bin/install -c .libs/libspeex.lai /usr/local/lib/libspeex.la
libtool: install: /usr/bin/install -c .libs/libspeex.a /usr/local/lib/libspeex.a
libtool: install: chmod 644 /usr/local/lib/libspeex.a
libtool: install: ranlib /usr/local/lib/libspeex.a
make[2]: Nothing to be done for `install-data-am\'.
Making install in include
Making install in speex
...
```
2.打包
> cd pathto/release
linux系统:
> make -f makefile-linux
> make -f makefile-linux install
mac系统:
> make -f makefile-mac
> make -f makefile-mac install
3.测试
SpeexUtils.decode("pathto/a.speex", "pathto/a-test.wav");
项目源码: https://github.com/guoguo11/JSpeex-util