Sphinx 离线语音识别研究（一）
编译环境： ubuntu 12.04
安装pocketsphinx
由于pocketsphinx依赖于另外一个库Sphinxbase,所以先需要安装Sphinxbase。
(1)安装Sphinxbase
tar xzf sphinxbase.tar.gz
cd sphinxbase
./configure
make
sudo make install
默认安装在/usr/local/bin下面，ls可查看。
(2)安装pocketsphinx
export LD_LIBRARY_PATH=/usr/local/lib
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
cd pocketsphinx
./configure
make
sudo make install
完成安装,在/usr/local/bin下面可以看到三个新生成的文件，
cd /usr/local/bin
ls
pocketsphinx_batch
pocketsphinx_continuous
pocketsphinx_mdef_convert
测试下安装结果
pocketsphinx_continuous
若出现如下信息，说明安装成功。
INFO: cmd_ln.c(512): Parsing command line:
pocketsphinx_continuous
Current configuration:
[NAME] [DEFLT] [VALUE]
-adcdev
-agc none none
-agcthresh 2.0 2.000000e+00
-alpha 0.97 9.700000e-01
-argfile
-ascale 20.0 2.000000e+01
-backtrace no no
-beam 1e-48 1.000000e-48
-bestpath yes yes
-bestpathlw 9.5 9.500000e+00
-bghist no no
-ceplen 13 13
-cmn current current
-cmninit 8.0 8.0
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INFO: ngram_search_fwdtree.c(333): after: 457 root, 13300 non-root channels, 26 single-phone words
INFO: ngram_search_fwdflat.c(153): fwdflat: min_ef_width = 4, max_sf_win = 25
Warning: Could not find Mic element
INFO: continuous.c(261): pocketsphinx_continuous COMPILED ON: Feb 21 2011, AT: 22:31:47
READY....