Caution!
This tutorial describes pocketsphinx 5 pre-alpha release. It is not up-to-date with the current development version and will be updated soon.
Install is simple, you need to setup and properly configure alsa, then you can just build and run pocketsphinx
sudo apt-get update
sudo apt-get upgrade
cat /proc/asound/cards
check your microphone is visible or not and if on which usb extension
sudo nano /etc/modprobe.d/alsa-base.conf
Now change this
# Keep snd-usb-audio from being loaded as first soundcard
options snd-usb-audio index=-2
To options snd-usb-audio index=0
if there is some other options snd-usb-audio index=1, comment it out
sudo reboot
cat /proc/asound/cards
check your device is at 0
sudo apt-get install bison
sudo apt-get install libasound2-dev
download sphinxbase latest , extract
./configure --enable-fixed
make
sudo make install
download pocketsphinx, extract
./configure
make
sudo make install
export LD_LIBRARY_PATH=/usr/local/lib
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
Run it, should work
pocketsphinx_continuous -inmic yes