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Figure 24 - Using a real time computer voice changing software
Figure 24 - Using a real time computer voice changing software

Once of the more popular voice changers available at the time of writing this was one called "AV VCS Voice Changer", and it is available as a trial download or as a full upgrade for a small fee. The quality of this software is actually very good. It can change a person's voice just enough to sound different and convincing, or it can warp your voice into all sorts of hilarious cartoon characters. This software works in real time so you can hear the results as you speak into the microphone. Once your microphone and volume levels are set up to work with the telephone audio mixer, you will see the record indicators at the top of the software window (Figure 24) move as you speak into your microphone. You will hear your altered voice over the headphones as well as the caller on the other end of the line. The voice changing software also lets you design your own voice presets and save them so you can become a multitude of characters by simply pressing a button.



Figure 25 - The completed Telephone Voice Changer using the Boss Voice Transformer
Figure 25 - The completed Telephone Voice Changer using the Boss Voice Transformer

The completed Telephone Voice Changer allows a person to remain anonymous over the phone by routing the audio signal through a real time vocal effect unit or computer voice changer. Because the audio mixing and filtering are done by the original audio processing electronics that came with the phone, the conversation sounds completely natural, as if using a standard telephone. By using a vocal effect box or software program, you can alter your voice in very convincing ways that will fool anyone, even those who have known your normal voice for years. You can also have some fun with "over the top" vocal effects such as echoes, chipmunk voices, evil voices, and robot voices. The audio mixing portion of the Telephone Voice Changer is also a very versatile input/output device that will allow you to send or receive audio data to and from the phone line without needing to use a DAA (data access arrangement) or filtering system.



If you have ever needed to disguise your voice on the telephone for any reason, then this device will certainly allow you to do it in a very convincing way. Telephone spammers will be sorry they ever dialed your number when you answer them with Satan's angry voice, and your friends will never know when you are pranking them until you can't hold back your laughter! Of course, there are also legitimate reasons why you might want to keep your identity private to the person on the other end of the telephone, and with a good voice changer connected to this device, you can make that happen.
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