Adding Robotic/Vocoder effect to your song using Audacity.

Have you heard songs where it appears as if a robot is singing a line instead of a person ? Want that effect for your songs ? Now you can. Yes we can !

You will need Audacity ( comes for windows/Linux/Mac – I use the linux one, pretty much the same as the others ) , the vocoder plugin ( which will automatically be there if you install the latest audactiy version. ) Here’s what to do :

1. Load up your song.

2. If your song is stereo ( has two tracks, Left and right, ), split the track into left and right, by clicking on the small arrow that is there in the control box to the left of the track.

Once the track has been split into left and right tracks, select  the entire right track, and then replace it with a sound that has a high amplitude to it, like a synth lead or a rave lead . Or, for experimenting, just with noise. To generate white noise, Click Generate -> Noise -> White.

3. Then recombine the left and right tracks to form a stereo track. Do this by again clickin on the small arrow to the left of the lef track, and selecting ‘Make stereo track’.

4. Now, in Effects->Plugins, select Vocoder. You might want to play with the settings a bit, but a higher number of vocoder bands mean a higher quality of robotic sound, and a lower value would mean more noise.

Apply the effect and enjoy a slightly robotic voice ! To get a more robotic voice, you would like to have a sound with more energy in it. If I had to exemplify, it would be something like a lot of synth organs playing. Like a cathedral noise with lots of strings ( cello/violins/hurdy-gurdy ) but synchronized. Luckily, I had such a song, ( The Undertaker’s WWE entrance theme played using a synth organ kinda instrument ), so my effect sounds realistic. With white noise, it won’t sound very robotish, so you need a proper sound which is in tune, unlike noise, as your carrier ( more on carriers below ).

Basically, how is works is that to vocode, the plugin needs two signals – one is the carrier signal ( the synth lead sound or the noise – in the right track ), and the other is the main sound that we want to vocode ( your song – in the left track ).  The vocoder  does the rest.

It was good for playing around, so I thought I’d let everyone know – there’s a tonne of cool plugins for audacity and it’s fun to play around with them, so by all means experiment !!

Next time, I’m trying the Pitch Snap effect ( commonly known as the T-Pain effect ? )

BTW, if you have windows and FL Studio ( Fruity Loops), you might want to visit http://www.warbeats.com , an awesome site for people interested in composing/mixing/merging music. Some really nice music stuff out there !

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19 Responses to Adding Robotic/Vocoder effect to your song using Audacity.

  1. xxTupaCxx says:

    tried with white noise but didn’t get the exact robot voice sounded more like an alien xD
    but with song it was more accurate
    nice article thanks !

  2. atrueswordsman says:

    Thanks and ya I got a t-pain effect using the vocoder too, but not a very great one, so I’ll try out the gsnap plugin for audacity sometime soon and will update here.

    Have fun !

  3. Joe Schmoe says:

    Thanks I’m gunna try it out.

  4. darion says:

    Hey man how did you get your blog to show up on google?

  5. darion says:

    Please tell me how on darion44@gmail.com

  6. colby says:

    how do i get a vocoder

  7. Emre says:

    THANK YOU WORKED! :D Then use GSnap over it perfecto! Thanks!!!

  8. gabe says:

    hey, i’ve been searching for a good vocoder plugin, but haven’t found anything that works. and there’s no built in audacity vocoder! unless i’m mistaken and it’s called something different. any recs?

  9. dehlome says:

    @gabe go to efects and its at the bottom of the whole list

  10. After reading your article, i have some issues in understanding the second paragraph of the passage . Because i’m very interested in what you’ve written, so can you explain that for me? Otherwise, your blog is seriously pretty fantastic . Thank you!

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  12. Gatomon says:

    Mhh…
    When I insert the noise and then modify the whole thing with the Vocoder, I only hear a very loud woosh, but there’s nothing that sounds like a vocaloid…

    @gabe: You need the newest form of Audacity, I think it’s 1.3.9 , the other versions don’t have a Vocoder Plug-in.

  13. eugenecloete44@gmail.com says:

    Some Hot Shit !!!

    Thanks bro’..

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  14. Goddywisdom says:

    Pls i dont use audacity,howCan i add a robort effect using flstudio?

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