How would you like your voice or the voice of the person over the phone to sound like a chipmunk?

Lobstertech Technologies has developed Asterisk Voice Changer which allows you to change the pitch of your voice, or the voice of the called party in realtime, when making phone calls over Asterisk based systems.

The application, VoiceChangeDial, functions as a Dial() replacement except it allows you to change the pitch of your voice. Although the behavior of this application seeks to mimic Dial(), it is not perfect due to the fact that Asterisk does not properly abstract dial and bridging functionality.

Installation Procedure

On your functioning Linux machine running Asterisk with the header files installed to /usr/include/asterisk, run the following commands to install the voice changer as well as its two dependencies:

# install SoundTouch 1.3.1
# you can also install it through your package manager
cd /usr/src
wget http://www.surina.net/soundtouch/soundtouch-1.3.1.tar.gz
tar xvzf soundtouch-1.3.1.tar.gz
cd soundtouch-1.3.1/
./configure –prefix=/usr
make
make install

# install libsoundtouch4c
cd /usr/src
wget http://www.lobstertech.com/code/libsoundtouch4c/releases/libsoundtouch4c-0.4.tar.gz
tar -xzvf libsoundtouch4c-0.4.tar.gz
cd libsoundtouch4c-0.4
./configure –prefix=/usr
make
make install

# install the voice changer
cd /usr/src
wget http://www.lobstertech.com/code/voicechanger/releases/voicechanger-0.6.tar.gz
tar -xzvf voicechanger-0.6.tar.gz
cd voicechanger-0.6
make
make install

# load it in to asterisk
make start

Have fun!

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