The different steps you'll need to perform are listed below. Also, if you are using an Asterisk version that has been compiled with the Bristuff, look for the article in our "Tech Articles" section - you will have to make some changes to one of the source files, otherwise you'll be receiving a compiler error.

Also, make sure your Asterisk source files are in "/usr/src/asterisk", otherwise the below won't work.

<sup># install SoundTouch 1.3.0
cd /usr/src
wget http://www.surina.net/soundtouch/soundtouch_v1.3.0.zip
unzip soundtouch_v1.3.0.zip
cd SoundTouch-1.3.0/
./configure --prefix=/usr
make
make install

# install libsoundtouch4c
cd /usr/src
wget http://www.lobstertech.com/code/libsoundtouch4c/releases/libsoundtouch4c-0.2.1.tar.gz
tar -xzvf libsoundtouch4c-0.2.1.tar.gz
cd libsoundtouch4c-0.2.1
./configure --prefix=/usr
make
make install

# install the voice changer
cd /usr/src
wget http://www.lobstertech.com/code/voicechanger/releases/voicechanger-0.5.tar.gz
tar -xzvf voicechanger-0.5.tar.gz
cd voicechanger-0.5
make
make install

# load it in to asterisk
make start</sup>