Dictation is a mode of speech recognition in which the user enters data by reading directly to the computer. Dictation mode allows users to dictate memos, letters, and e-mail messages, as well as to enter data using a speech recognition dictation engine. Most recognizers are speaker-dependent. To ensure accurate recognition, a "speaker profile" is created to ensure accurate recognition.
Dictation software allows you to create documents (email, wordprocessing, forms) by speaking instead of typing. Most dictation software allows you to speak in a natural way (conversational). To work effectively, these systems need to utilize databases of words and sounds (a lexicon). An initial training session is used to help the computer learn to interpret your voice and speech characteristics. This training (called "enrollement") will improve the accuracy of the dictation.
Important Things to Consider in Dictation
If you are new to dictation, it may help to begin by using notes or handwritten ideas. These aids will help you to gather your thoughts before speaking. With practice, you should get better at dictating to a machine and maybecome very good at dictating without the use of printed materials.
When dictating, try not to look at the computer screen since this may distract you from your thoughts and cause you to loose concentration. The computer will attempt to transcribe everything you say. So, make sure you think about it first before saying it.
The process for converting your thoughts into text is very different from typing your thoughts than when you're talking to a computer. In order to maximize the accuracy of the speech recognition software, the speech program will attempt to adjust the spellings of words based on the context of the sentence that it hears. In other words, speech programs analyze entire phrases or sentences, not just individual words. This is why you will often see nothing on the monitor/screen until just after you stop speaking. It takes a few seconds for the computer to figure out what you were saying.
If you don't think about what you are going to say before you say it, you may end up just blabbering on about the topic but not really saying anything important. If you were to stop in mid sentence, this would reduce the ability of the software to accruately transcribe what it heard.
Therefore, dictation into a computer will work most efficiently when you learn to form each sentence in your head before speaking it.
Speak in a clear voice and pronounce each word. Speech recognition software is not perfect and may make mistakes in the translation of your voice.
Since the job of the speech engine is to convert your speech into text, the speech engine is a very good speller and will create text that does not have spelling errors. However, the words chosen by the speech engine may not be exactly what you had intended. You need to carefully read the text that the computer generates. For example, you may say: "You can recognize speech." and the computer would transcribe this into: "You can wreck a nice beach." These types of mistakes may be made by the computer. So check the text generated by the computer carefully.
Achieving Good Recognition Accuracy
- Use a noise cancelling microphone
- Use a digital microphone instead of an analog one
- Make sure background noise is at a minimum
- Perform the voice training / user enrollment
- Practice at first by reading from a printed source (e.g., newspaper)
- Speak clearly and slowly
- Think about what you want to say before you say it
- Train individual words that are not recognized
BBN Technologies AVOKE™ STX (http://www.bbn.com/For_Commercial_Customers/AVOKE_Speech_and_Language/STX/index.html)
AVOKE™ STX is a state-of-the-art speech-to-text software system for quickly and cost-effectively transforming audio data into usable and searchable content. AVOKE™ STX can exploit the power of the spoken word to offer highly differentiated solutions for Enterprise Search, Government Intelligence, Call Center Recording, Consumer Search, Digital Asset Production, and Broadcast News Monitoring.
Philips Digital Dictation System (http://www.dictation.philips.com/index.php?id=51&CC=US)
Dictation is no longer merely a useful working instrument. It is the commitment to empowering technology for the profitability of your company and for the convenience of the people who work in it.
Health Care Solutions
Enterprise-level speech recognition; input flexibility including phone-based dictation, with transcriptionist editing tools and physician self-completion control.
Enterprise Workstation (http://www.dictaphone.com/products/ews/)
Web-Based Physician Interface--leverage the power of speech recognition to provide physicians with browser-based once-and-done dictation, report review, and electronic signature capabilities.
PowerScribe for Radiology (http://www.dictaphone.com/products/powerscribe/)
Departmental speech recognition solution; PowerScribe Workstation is proven, and used by more Radiologists than any other recognition system.
PowerScribe for General Medicine (http://www.dictaphone.com/products/powerscribege/)
Departmental speech recognition solution, with specialized language models for Emergency Medicine, Pathology, and other medical applications.
ichart Physician Direct (http://www.dictaphone.com/ichart/)
Lets the smaller practice benefit from the latest digital dictation and speech recognition technology as part of an affordable pay-as-you-go Internet accessible subscription service.
ichart Recognition (http://www.dictaphone.com/products/ichart/)
Flexible Internet-driven, subscription-based speech recognition built upon the EXSpeech platform.
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