ControlAir review: A touch-free future is here, as long as you have enough light

controlair icon
At a Glance
  • eyeSight mobile ControlAir

    Macworld Rating

    ControlAir uses the FaceTime HD camera to allow touch-free, gesture-based control over a handful of media player software using only your index finger.

PC makers really tried to make touchscreen computers a thing in recent years, but it’s little surprise why those efforts have largely failed. Hunching over a keyboard pawing greasy mitts all over the display doesn’t exactly inspire a great user experience.

The folks at eyeSight Technologies believe there’s a better way with ControlAir, a free Mac application capable of controlling media player software using nothing but an index finger held away from the screen.

controlair itunes playback

ControlAir superimposes on-screen playback buttons that can be controlled using a finger held up to the built-in FaceTime HD camera.

Touch-free control

ControlAir enables touch-free, gesture-based control over seven Mac media player apps including iTunes, Spotify, Rdio, QuickTime Player, and VLC. Running in the background, ControlAir hijacks the built-in FaceTime HD camera, waiting for users to raise their hand in the direction of the lens with a finger held upright, at which point a controller pops up on the screen.

On-screen buttons allow for basic playback control (play/pause, previous or next track, and volume up/down) but little else. Artist and track names are displayed in the upper left corner next to an icon representing the application currently being controlled.

controlair pause button selected itunes

Curling a finger translates to activating a selected on-screen button in ControlAir.

When held between one and five feet from the screen, users can move their finger left or right (and yes, any finger worked in our tests) to highlight buttons on the control bar, bend a finger to make a selection or hold it to your lips in a “shush” gesture to mute or unmute the sound.

It’s a pretty neat trick, and with enough ambient light in the room, ControlAir can be fairly responsive. The biggest problem was getting the software to recognize a finger in the first place, which often required multiple attempts.

Give ‘em the finger

As impressive as the software might be, ControlAir worked best on a mid-2012 15-inch Retina MacBook Pro in a brightly lit room. This light limitation makes the software not reliable enough yet for daily use.

In an average or darker environment, the menu bar icon displays a “low frame rate” error, warning the software may have trouble recognizing gestures—there’s no remedy other than moving to a better-lit location. MacBook users holding the notebook on their lap will also want to hold their hand close to their face for best results.

controlair low frame rate warning

ControlAir works best in brightly lit rooms, and will warn about a “low frame rate” even in average lighting scenarios.

ControlAir only supports built-in cameras, although it worked just fine with the connected Thunderbolt Display selected by default on our MacBook Pro. However, there’s no way to manually switch between multiple cameras, and ControlAir completely ignores third-party enhancements like iGlasses, which could brighten up the image and potentially improve gesture recognition.

The volume and mute options are disappointing—they actually control at the system level, rather than the player software itself. This limits ControlAir’s functionality on Macs with external audio hardware connected, at least until the developer provides direct volume control over the media player.

controlair spotify control

ControlAir includes support for popular media player software such as Spotify, iTunes, and VLC.

Bottom line

ControlAir offers a glimpse at the future of how users might someday interact with Macs, but in its current incarnation, the software is best viewed as proof of concept rather than a utility for everyday use. The current controls are extremely basic, and won’t replace the need for a mouse to hop between playlists or select specific tracks and albums.

This story, "ControlAir review: A touch-free future is here, as long as you have enough light" was originally published by Macworld.

At a Glance
  • Macworld Rating

    ControlAir uses the FaceTime HD camera to allow touch-free, gesture-based control over a handful of media player software using only your index finger.

    Pros

    • Touch-free control over many popular Mac media players
    • Audio can be muted by holding finger to your lips
    • Works with any finger

    Cons

    • Requires bright, well-lit environment
    • Limited control functionality
    • Volume buttons control system level, not media player