Description of App: 

ImproVox is a new vocal instrument. Real-time pitch correction and harmonization enable you to create lush harmonies as you sing - and always sound in tune! Add vibrant textures with effects like reverb, echo, and flanger, record your performance and share it with friends.  

With new overdub and sharing features, it's possible to collaborate with people from all over the world. Download tracks from other ImproVox users with SoundCloud and overdub your own parts, or take your favorite song from your iTunes library, and sing along. Harmonies and effects are controlled via two large touch pads.  Changing the sound of your voice is as easy as moving your fingers across the screen, and you don’t need to know any music theory.  Because effect and harmony characteristics can be changed while you sing, the sonic possibilities are endless.  Create reverberant rock hits and cavernous choral compositions, or just speak into the mic and transform your voice using abstract effects.   Never before have so many powerful features been bundled into one easy-to-use App. With state-of-the-art audio processing and a sophisticated yet intuitive feature set, it’s both easy to enjoy and a challenge to master. Controls are simple and immediately gratifying, while recording and sharing is easy and straightforward. With 5 unique harmony styles and 8 different effects to choose from, you can make your music as simple or complex as you choose. All it takes is the desire to explore -- and create.  Features Include:
  • Real-time vocal pitch correction
  • Real-time 4-part harmonization in varying styles (Choral, Pop, Barbershop, Jazz, Baroque)
  • Customizable key and scale selection (with a voice-controlled key selector) 
  • Traditional effects - reverb, echo, stutter, and cavern 
  • Abstract effects - ring modulator, bit crusher, flanger, and auto-wah
  • Change and mix any harmony style and effect while you sing
  • Shake the device to set echo times
  • Recording capabilities with .m4a and .wav file-saving
  • Overdub function allows you to layer your recordings with multiple performances
  • Sharing capabilities via the device's email client, SoundCloud, and iTunes document sharing.
  • Import function allows you to import tracks from your iTunes library or SoundCloud, allowing you to collaborate with people from all over the world
  • Audiobus support in Input/Effect/Output slot
ImproVox works great with IK Multimedia's iRig Mic. The microphone's variable gain setting allows you to use ImproVox live with speakers, and the sound quality is fantastic. A highly recommended addition to your collection! Learn more @ Built for iPad, iPad Mini, iPhone5/4S/4/3GS, and 3rd/4th/5th Generation iPod Touch. (MuseAmi recommends purchasing the app directly from the device to be sure if it is compatible).  MuseAmi highly recommends updating your device to iOS 4.0 or later for ImproVox to run optimally- Headphones required; supports ear bud headsets with mic and traditional headphones ImproVox is not currently compatible with 1st and 2nd Generation iPhones, or iPod Touch lower than 32GB. MuseAmi recommends purchasing the app directly from the device to be sure if it is compatible. For support, contact

Apple Watch Support: 

Not Known



Free or Paid: 


Device(s) App Was Tested On: 


Accessibility Comments: 

using Improvox, you will need Voiceover enabled at times, and disabled at others. At app launch you will hear vocoded music, disable Voiceover and tap the screen once. You will hear music fade down and loop will stop. Now, enable Voiceover and you can explore several of the apps controls. Buttons show, "Highlited", to show when a control is selected. To enable harmoney disable Voiceover and move your finger up the left side of the screen toward the left top corner. As you sing, you will hear harmoney parts rise in volume through your headphones. Now enable Voiceover to continue exploring controls. The, "Left and right" buttons, change keys by half step. The "Mood happy/sad" buttons change from major to minor. Disable Voiceover again, and move your finger up the middle of the screen moving from middle upwards enables trim/lesley fx, moving middle down, enables echo/delay. Moving to the right still, you have reverb fx. Double tapping on right side of screen, (with voiceover disabled) will change fx patches.

VoiceOver Performance: 

VoiceOver reads a few page elements.

Button Labeling: 

Most buttons are clearly labeled.


There are some accessibility issues with this app, but it can still be used if you are willing to tolerate these issues and learn how to work around them.

Developer's Twitter Username: