speech recognition technology

Speech Recognition Explained

Speech recognition is a rapidly developing field of computer science that builds technologies and methodologies which allow machines to recognize and translate spoken languages into text. Such technology has the potential to drastically reduce the cost of translating text from traditional sources to spoken language. Currently, there are currently four systems available for speech recognition. These include word recognition, text-to-speech recognition, semantic extraction, and speech synthesis. Each system has its own strengths and limitations, as well as significant potential for development in the future.

Word recognition

Word recognition is the most widely used form of speech recognition. It is capable of recognizing words, phrases, sentences, and even parts of speech, although it sometimes cannot handle complex documents or conversations with many speakers. Word recognition works by scanning text and checking for known word structures within a document or conversation. It then compares these structures with previously-stored templates and from known entities in the data set.

Text-to-speech recognition

Text-to-speech recognition, or speech recognition for a variety of languages, is a more complicated form. It requires a good database and a good speech recognition server. The speech recognition server usually runs applications written in the source language itself. In addition, text can also be sent to the speech recognition server, instead of being stored directly in the database. This allows the data to be used in a number of ways, such as generating advertising or news reports, delivering lectures or training data, or simply providing feedback to the users as they speak.

Semantic extraction

Semantic extraction is used to find and extract meaning from unstructured text. It can also be used to analyze large corpora, such as encyclopedias, or to search for patterns in large unindexed texts. Unlike traditional databases, which require the user to provide keywords, semantic extraction relies on a knowledge base that contains both regular expressions and regular vocabulary. The extracted information is then stored in a database, much like a traditional text mining project. The major difference is that, rather than running an algorithm to find the relevant words, the Semantic Discovery server allows the user to simply say what is expected to be found.

speech recognition technology

Contextual Linking

Another type of speech recognition is called Contextual Linking. It extracts data from one word and associates it with the next element in the text. For instance, if you are searching for information about a particular person, you may be looking for how his first name is linked to his last name, his marital status, and whether or not he is married or divorced.

Machine Learning

Speech recognition systems also fall into the broad category of Machine Learning. Their biggest advantage is that they can be easily trained by feeding the data they are trained on into another system called a reinforcement robot. These robots can then use the learned speech recognition to help them in other areas of relevance, such as identifying large sets of text, classifying real-world data, predicting the future of an industry, or predicting the results of an experiment. Deep learning is rapidly becoming an important tool in all these areas.

When it comes to text processing, the most popular speech recognition technologies at the moment are those that allow a user to enter text directly into a program or screen. Some examples include Apple’s iWork written language application, Google’s voice-recognition service, and Microsoft’s speech recognition software. The iWork software allows the user to enter a document from their word processor or e-mail and then have the document edited by a company representative. Voice recognition allows a user to simply speak into a phone and have commands heard through the phone speaker. Google’s speech recognition technology can recognize spoken words in e-mail messages and can then deliver these commands to the appropriate people in the message.


The field of speech recognition continues to advance at a rapid pace. This progress has been fueled in part by a huge investment by companies in personal technologies, in particular biotechnology companies. Biotechnology businesses are investing billions of dollars in research and development into speech recognition technologies, looking for ways to translate natural speech into a searchable vocabulary. While this is a vital piece of the future of speech recognition, many of these technologies are still very much in the research and development stage. In the meantime, software developers are spending enormous amounts of time making speech recognition software that will one day replace the need for professionals.

About the Author Emma Gomez

We’re a tech-oriented company that values the needs of our clients. We’re on the verge of using innovative means to deliver design, development and digital marketing projects. Our solutions target small and large businesses and individuals. You can rely on them to help you identify and solve tech-related problems.