How to make a Robot sound in Audacity
Posted by Circuit Negma on January 7, 2010
Created By: Hussein Nosair
After searching the internet on how to create a robot sound, I finally came across an YouTube video that show how to do so. So I decided to give it a try. I also added a few more affects to the sound to make it more robotic like.
These are the following steps I used to create my Robot Sound:
1. Use the AT&T Labs Natural Voices Text-to-Speech Demo tool to create your audio file and save it to your computer.
2. Open Audacity program. If you do not have installed already, then you need to download and install Audacity.
4. Need to select the sound wave. To do so press [Ctrl + A] or Go to Edit > Select > All
In the Delay Window, set the following variables:
Decay Amount : 10 dB
Delay Time : 0.01 sec
Number of Echos : 30 times
6. Need to repeat step 5 about 8 times. To do so, go to Effect > repeat Delay and repeat this 8 times or press [Ctrl + R] 8 times. If this option is disabled (i.e. grayed out), then you need to repeat step 4 to select the sound wave.
8. Next, need to make the sound wave fit to the screen size to have a better look at the resulted wave. Press [Ctrl + F] or go to View > Fit in window.
10. Need to change the wave speed. Go to Effect > Change Speed…
In the Change speed window, change the following variable:
Percent Change : –38.00
11. Repeat step 4 to select the entire sound wave.
12. Need to change the wave tempo. Go to Effect > Change Tempo…
In the Change Tempo window, change the following variable:
Percent Change : 10
13. Repeat step 4 to select the entire sound wave.
14. Next, to normalize the sound wave. Go to Effect > Normalize…
The END Result:
15. Repeat step 4 to select the entire sound wave.
16. Next need to save the sound wave to a file. There is 2 options either WAV file or MP3. Go to File > Export Selection as a WAV… or File > Export Selection as MP3… If need to save under another file format, go to Audacity website and download the necessary plug-in and library files.