MIT researchers develop low-power voice recognition chip

MIT researchers develop low-power voice recognition chip

MIT researchers develop low-power voice recognition chip

Automatic speech recognition or voice recognition is slowly making people lazy as they have an assistant at their disposal to carry out mundane tasks.

The technology is already implemented in smartphones and is slowly branching out to the Internet-of-Things (IoT) However, in response to the massive anticipation regarding the voice-controlled electronics, researchers at the Massachusetts Institute of Technology (MIT) have built a low power chip for automatic voice recognition.

About The Chip

The chip developed by MIT, requires between 0.2 and 10 milliwatts of power to run, depending highly on the amount of words it has to recognize per speech. The speech recognition chips in cell phones on the other hand require around 1 watt of power. The power used by the chip developed by MIT saves around 90 percent to 99 percent of electricity, thus making the voice control option available for simpler devices like vehicles, appliances, manufacturing equipment and even livestock. Even devices from the technological zone or more commonly known as IoT, will very soon be equipped with the voice recognition option, which will allow users to directly report the information to the desired servers in a coordinated manner. Per Anantha Chandrakasan, the professor of Electrical Engineering and Computer Science at MIT, the concept of speech input will very soon become a common interface for many wearable and intelligent devices. “It will be critical to embed the speech functionality locally to save system energy consumption compared to performing this operation in the cloud,” says Anantha Chandrakasan. According to Michael Price, who executed the designing, this chip was not developed for any particular application. A paper on the chip was presented at the International Solid-State Circuits Conference by Price, Chandrakasan, and Jim Glass, a senior research scientist of MIT’s Computer Science and AI Laboratory.

How Does The Chip Work?

Most people are aware about voice recognition technology, which works when the owner of the device says something. This in turn can act as a major reason for battery consumption. The MIT voice recognition chip, will inspect the sounds circulating around it, filtering out human voice from ambient sounds. On recognizing human voice, the chip will start larger and complex recognition circuit in order to execute any given commands.

Practical Applications

Although the inventors stated that the chip was not invented to cater to any specific purpose, this could be a path breaking innovation for IoT and other wearable devices.