Get the exact time of word spoken, Speech Recognition c#?

Question

5.00/5 (1 vote)

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Is there a way to get the time a spoken word was recognized in speech recognition?
I am using C#, and the SAPI5.1

So far, I found this

C#

decimal position = (decimal)sfs.Seek(0, SpeechStreamSeekPositionType.SSSPTRelativeToCurrentPosition)

from here

I haven't tried it yet
but I want my output to look something like

word 0:01
word1 0:02

Thank you to for your advice and answers =)

Posted 8-Jul-11 6:28am

Comments

Sergey Alexandrovich Kryukov 9-Jul-11 21:59pm

Good question, my 5.
--SA

2 solutions

When the speech regonition identifies a word you can create a timestamp

You can use the current time with DateTime:
http://msdn.microsoft.com/en-us/library/efez4684.aspx[^]

Or you can use a timer,
http://msdn.microsoft.com/en-us/library/system.timers.timer(v=VS.100).aspx[^]

Regards.

Posted 8-Jul-11 6:56am

Comments

Sergey Alexandrovich Kryukov 9-Jul-11 22:00pm

Correct, my 5, but more exactly --- see my solution.
--SA

thatraja 9-Jul-11 23:55pm

My 5 man.

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-07-09T15:59:00

You can time stamps several different events raised on different phases of recognition: SpeechDetected, SpeechHypothesized, SpeechRecognitionRejected and SpeechRecognized. Those are the events of the classes System.Speech.Recognition.SpeechRecognitionEngine or System.Speech.Recognition.SpeechRecognizer, whichever you use.

You can use timestamps to figure out the position of the recognized word in audio stream, see the property RecognizerAudioPosition and the property Result.Audio you receive in the event argument parameters of the recognizer events.

See:
http://msdn.microsoft.com/en-us/library/system.speech.recognition.speechrecognitionengine.aspx[^],
http://msdn.microsoft.com/en-us/library/system.speech.recognition.speechrecognizer.aspx[^],
http://msdn.microsoft.com/en-us/library/system.speech.recognition.recognizedaudio.aspx[^].

As S Houghtelin already explained, you can use System.DateTime for time stamps.

—SA