The vOICe for Android

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See with your ears! The vOICe for Android maps live camera views to soundscapes, offering augmented reality and unprecedented visual detail for the totally blind through sensory substitution and computer vision. Also includes live talking OCR, a talking color identifier, talking compass, talking face detector and a talking GPS locator, while Eye-D and Aipoly object recognition can be launched from The vOICe for Android by tapping the left or right screen edge.

Is it an augmented reality game or a serious tool? It can be both, depending on what you want it to be! The ultimate goal is to provide a form of synthetic vision to the blind, but sighted users can simply have fun playing the game of sight-without-eyesight. Visually impaired users with severe tunnel vision can try if the auditory feedback helps them notice changes in the visual periphery. The vOICe for Android runs on smartphones and tablets, but is also compatible with most smart glasses, using the tiny camera in these glasses and a special user interface to generate a live sonic augmented reality overlay, hands-free! You may want to use an external battery connected via USB cable to keep the smart glasses battery from draining too quickly. You can help us by blogging and tweeting about your experiences, your use cases, and about how *you* learn to see with sound.

How does it work? The vOICe uses pitch for height and loudness for brightness in one-second left to right scans of any view: a rising bright line sounds as a rising tone, a bright spot as a beep, a bright filled rectangle as a noise burst, a vertical grid as a rhythm. Best used with stereo headphones for the most immersive experience and most detailed auditory resolution.

Just experiment with simple visual patterns first, because real-life imagery is extremely complex. Randomly drop a bright item such as a DUPLO brick on a dark table top, and learn to reach for it through sound alone (close your eyes if you have eyesight). Next try and explore your own safe home environment, and learn to associate the complex sound patterns with what you already know is there. Sighted users can also use the app with Google Cardboard compatible devices through a swipe-down on the main screen to toggle the binocular view.

For serious users: learning to see with sound is like learning a foreign language or learning to play a musical instrument, really challenging your perseverance and brain plasticity. It may well be the ultimate brain training system, bridging the senses through artificial synesthesia. A general training manual for The vOICe (not specific to the Android version) is available online at

and usage notes for running The vOICe for Android hands-free on smart glasses are at

Why is The vOICe free? Because our foremost goal is to make a real change by lowering barriers to use as much as we can. You will find that competing technologies cost upwards of $10,000 and yet have lower specs. The perceptual resolution offered by The vOICe is unmatched even by $150,000 "bionic eye" retinal implants (PLoS ONE 7(3): e33136).

The vOICe for Android supports English, Dutch, German, French, Spanish, Italian, Estonian, Hungarian, Polish, Slovak, Turkish, Russian, Chinese, Korean and Arabic (menu Options | Language).

Please report bugs to, and visit the web page for detailed description and disclaimers. We are on Twitter at @seeingwithsound.

Thank you!
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What's New

v2.24: Fix for crashes when selecting other camera on some devices.

v2.23: Workaround for memory reallocation problems on some devices.

v2.22: Fix for some rare crashes mostly on Android 4.4.

v2.21: Fix for crashes caused by Samsung TTS bug, and fix for Android 4.3 message crashes.

v2.20: Code hardening against some rare camera-related crashes.

v2.19: Minor bug fixes.

v2.18: Android 8 (Oreo) compatibility fixes.
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Additional Information

March 6, 2018
Current Version
Requires Android
4.0 and up
Content Rating
Offered By
Peter Meijer
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