Vocolo: The Professional Kazoo by Alto Research LLC (iPhone)
Released: Mar 13, 2013
Version: 2.32
Size: 38 MB
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Ranking - Music (iPhone)

Vocolo: The Professional Kazoo

Alto Research LLC
Transform your voice into a musical instrument to create and record your own improvised performances.

Imagine playing a kazoo that sounds like an actual flute or sax!  Your voice feels like it becomes a musical instrument with the Vocolo. With its sophisticated voice tracker the Vocolo greatly expands the possibilities for making live voice-controlled music.


• Patented vocal tracking technology is extremely responsive and accurate.
• Variety of musical instrument sounds including trombone, tuba, baritone sax, alto sax, vibraphone, and pan flute.
• Works with earbuds or headphones (with or without a  built-in microphone), or amplified external speakers for live performances.
• Special audio effects include echo and reverb.
• Control panel allows convenient changing of instruments, effects presets, and octaves during a performance.
• Play and record with custom accompaniments from genres such as jazz, R&B, funk and rock.
• Record on top of a previous recording for layering performances.
• Play along with songs from your music library.
• Balance control allows you to mix your voice with any instrument or just create a pure vocal track.
• Patented pitch correction algorithm enables playing accurate notes in a natural way.
• Microphone level control allows singing in noisy environments or in more relaxed settings.
• Sophisticated enough for musicians to create new sounds.

Playing Tips:

• For the best quality sound, adjust the microphone level such that your voice registers mostly in the blue, but sometimes in the red
• The sound will come out of the loudspeaker if you are not wearing headphones or earbuds
• Sing close to the top microphone if sound is coming out the loudspeaker
• Never hum directly into the mic but off to one side slightly (to avoid voice tracking errors)

What's new in version 2.32
Adjusted the range on the microphone volume slider control.
Our verdict: Good
  • + Vocolo: The Professional Kazoo is a highly rated app (4-star).
  • + It is currently 50% off its regular price.
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