Commonly known as Back masking; the playing of audio in reverse gained notoriety in the 1970s when a number of Beatles songs were found to have subliminal messages. The conjecture over whether these messages were put in as a marketing ploy have further sparked interest in the technique of reversing a song. Determining whether a song or audio has such a hidden message can be quite effortless when using a free online audio software like Audacity. This supplies the user with a detailed reverse effects capability in the default settings.
- Skill level:
Things you need
Find a quiet location to both record and listen to your voice.
Attach an external microphone to your computer. If you are using an internal microphone ensure that it is turned on.
Put on a headset and test the volume by navigating to the microphone's device drivers. In Windows 7 this can be found in the start - control panel, hardware and sound and manage devices. From this menu you can choose playback or recording to test the microphone or speakers. Highlighting either option and pressing properties will take you to a wizard, which will assist in the configuration process.
Check the clarity and background noise by managing the volume and bass levels. Depending on your location or how sensitive your microphone is will determine whether the levels need to be adjusted.
Setting up your Microphone
Connect to the internet and open a web browser.
Type into the search address bar: http://audacity.sourceforge.net/>
Once the page loads, choose either the Download Audacity 2.0.3 or Other Audacity Downloads item, depending on the operating system.
Save the software installation to your desktop. Find the execute file and run the wizard. This will then install the software on the computer.
Setting up Audacity
Once you are ready to record your voice, click on the red record button at the top of the Audacity menu.
Speak into the microphone and record your voice. When finished press the brown stop button.
Navigate to the top menu item Effect and choose Reverse from the drop-down menu.
Press the green play button to playback your voice in reverse.
Recording & playback in reverse
Tips and warnings
- It is recommended that you use an external microphone to record your audio, as a factory standard computer microphone can vary in quality, and could pick up extensive amounts of background noise. Audacity also allows the user to export the audio into a wav file format. This can be found in the file menu.
- Choosing the correct operating system when installing Audacity is critical as this could effect its compatibility.
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