How speech recognition works

Interested in computers and machine learning. Likes to write about it. Dec 23, Machine Learning is Fun Part 6: Speech recognition is invading our lives.

How speech recognition works

Instead of texting while driving, you can now tell your car who to call or what restaurant to navigate to. As beneficial as it may seem in an ideal scenario, it is dangerous when implemented before it has high enough accuracy.

Studies have found that voice activated technology in cars can actually cause higher levels of cognitive distractions. This is because it is relatively new as a technology; engineers are still working out the software kinks. As you hurriedly attempt to change the song, you are obviously not in prime condition to be watching the road.

We have worked on a number of speech recognition-related projects at Globalme. Such as, in-car speech recognition data collection and voice-controlled fitness wearables.

Through these projects and many more, we have seen first-hand the way different languages, dialects and accents can prove too complex and individualistic for technologies to handle. It seems so simple to us now in But for every breakthrough we How speech recognition works made in speech recognition technology, there have been thousands of failures and hundreds of dead ends.

Because the simplicity of being able to speak to digital assistants is misleading. Speech recognition is actually incredibly complicated, even now.

How speech recognition works

Then, based on algorithms and previous input, it can make a highly accurate educated guess as to what you are saying. Unsurprisingly, if the speech recognition software is only used by one person, it will be trained specifically for how that person talks.

It becomes increasingly more complex when a device or software is geared towards multiple different markets around the world.

This is because engineers have to program the ability to understand infinite more variations; language, dialects, accents, phrasing. Even with hundreds of hours of input, other factors can play a huge role in whether or not the software can understand you.

Background noise can easily throw a speech recognition device off track. Another factor is the way humans naturally shift the pitch of their voice to accommodate for noisy environments; speech recognition systems can be sensitive to these pitch changes.

Key Features

Let me put it this way — think about how a child learns a language. This is called input. Their brain is forming patterns and connections based on how their parents use language.

How speech recognition works

Though it may seem as though humans are hardwired to listen and understand, we have actually been training our entire lives to develop this so-called natural ability.

It takes five or six years for a child to be able to have a full conversation, and then we spend the next 15 years in school collecting more data and increasing our vocabulary.

Speech recognition technology works in essentially the same way. Whereas humans have refined our process, we are still figuring out the best practices for computers. We have to train them in the same way our parents and teachers trained us. Speech Recognition Technology in Action Shazaman app that is used to instantly identify music, is another great example of how speech recognition technology works.

When you hit the Shazam button, you are effectively starting an audio recording of your surroundings. Eventually, tracking down the song that was playing and supplying the information to its curious end-user. In much the same way, your voice is recognized as the input.

The device or software then separates the noise individualistic vocal patterns, accents, ambient sounds, and so on from the keywords and turns it into text that the software can understand. This is why speech recognition technology developed in North America for the North American accent does not work well when foreigners attempt to use it; native speakers pronounce things more or less consistently — save for individual variety.

Whereas, foreigners speaking English with an accent introduce irregular intonations and phrasing. But, we are getting closer. As time goes on, more and more data audio, text, noise processing adds to the accuracy of speech recognition technology.

How Speech Recognition Works

So, maybe the next time Siri fails to understand your existential questions, or your Amazon Alexa plays the wrong music, remember that this technology is mind-blowingly complicated and still impressively accurate.

Then smile, tell your Amazon Alexa that you forgive her, and dance along to the music she chose. Find the LinkedIn Pulse version of this article here. Talk to us about training your voice recognition tech with high-quality datasets Author: Born and raised on an island near the vibrant city of Hong Kong, Naomi spent her time clambering up waterfalls and waving to her friendly neighbourhood buffaloes.Speech recognition is the inter-disciplinary sub-field of computational linguistics that develops methodologies and technologies that enables the recognition and translation of spoken language into text by computers.

It is also known as automatic speech recognition (ASR), computer speech recognition or speech to text (STT).

How Speech Recognition Works – An Overview Before we get to the nitty-gritty of doing speech recognition in Python, let’s take a moment to talk about how speech recognition works. A full discussion would fill a book, so I won’t bore you with all of the technical details here.

On Windows 10, Speech Recognition is an easy-to-use experience that allows you to control your computer entirely with voice commands.. Anyone can set up and use this feature to navigate, launch. Voice to text software translates spoken words into text, which can then be stored on a computer.

It saves time and may benefit anyone who has a physical disability. Various voice recognition programs are available for Windows, Macintosh and Linux operating systems. Voice recognition software saves. You an also use speech recognition software in homes and businesses.

A range of software products allows users to dictate to their computer and have their words converted to . Aug 31,  · Enter Speech Recognition in the search box, and then tap or click Speech Recognition.

Tap or click Train your computer to better understand you. Follow the instructions in the Speech Recognition Voice Training.

The Ultimate Guide To Speech Recognition With Python – Real Python