Talking Signs

“Talking Signs technology is an infrared wireless communications system that provides remote directional human voice messages that make confident, independent travel possible for vision impaired and print-handicapped individuals....

The system consists of short audio signals sent by invisible infrared light beams from permanently installed transmitters to a hand-held receiver that decodes the signal and delivers the voice message through its speaker or headset. The signals are directional, and the beam width and distance can be adjusted. The system works effectively in both interior and exterior applications.

Talking Signs may be used wherever landmark identification and wayfinding assisstance are needed. To use a Talking Signs system, the user scans the environment with the hand-held receiver. As individual signals are encountered, the user hears the messages. For example, upon entering a lobby, one might detect ‘information desk’ when pointing the receiver directly ahead, ‘public telephones’ when pointing to the right and ‘stairs to the second floor’ when pointing to the left.

Messages are unique and short, simple and straightforward. The messages repeat, continuously identifying key features in the environment.”

The site notes that the San Francisco City Council has passed a resolution calling for the installation of talking signs at all public facilities, including 600 in the San Francisco Airport. The devices have already been installed in several San Francisco public spaces including subway stations, crosswalks, libraries, and public toilets. The Japanese government is installing 2,000 signs at key intersections throughout Japan.

Here’s a diagram of how it works.

Talking Signs’s Ohio representative writes:

“With remote infrared audible signage we [the vision impaired] can independently become oriented to unfamiliar places, cross streets safely while staying in the crosswalk, create mental maps that translate to a broader orientation and enjoy a type of freedom that the sighted community just takes for granted. Orientation to public places is a civil right, as surely as getting into the building or using the telephone. Yet, when you look around you, where are the talking signs?... As the old saying goes, we have the technology. What we now need is the advocacy.”