Speech Recognition - Revision history

Steve Lympany: /* Basics */fix spelling mistake

2010-02-16T18:35:23Z

Basics: fix spelling mistake

← Older revision		Revision as of 20:35, 16 February 2010
Line 5:		Line 5:
	SAPI is the link between programs and Speech Recognition Engines, much like ODBC is the link between programs and SQL databases.		SAPI is the link between programs and Speech Recognition Engines, much like ODBC is the link between programs and SQL databases.

	Generally, the COM component is provided with Windows (but see below - [[#SAPI ~~Availabilit~~]]). With a copy of the DLL in your project folder, it's easy to import it into your project. It is not necessary for it to be there at run time (i.e. there's no need to distribute it with your app to end users).		Generally, the COM component is provided with Windows (but see below - [[#SAPI Availability]]). With a copy of the DLL in your project folder, it's easy to import it into your project. It is not necessary for it to be there at run time (i.e. there's no need to distribute it with your app to end users).

	If you need it (see "availability" below) you can download the SDK here: [http://www.microsoft.com/downloads/details.aspx?FamilyID=5e86ec97-40a7-453f-b0ee-6583171b4530&displaylang=en MS Download site]; you need the 68Mb file '''SpeechSDK51.exe''' near the bottom of the page.		If you need it (see "availability" below) you can download the SDK here: [http://www.microsoft.com/downloads/details.aspx?FamilyID=5e86ec97-40a7-453f-b0ee-6583171b4530&displaylang=en MS Download site]; you need the 68Mb file '''SpeechSDK51.exe''' near the bottom of the page.

Thomas Linder Puls: /* Basics */ Links

2010-02-06T21:07:18Z

Basics: Links

← Older revision		Revision as of 23:07, 6 February 2010
Line 11:		Line 11:
	The SAPI overviews are here:		The SAPI overviews are here:

	*[http://msdn.microsoft.com/en-us/library/~~aa911607~~.aspx ~~SAPI5.0 overview]~~		*[http://msdn.microsoft.com/en-us/library/ee705648.aspx Microsoft Speech API (SAPI) 5.4 & 5.3]
	*[http://msdn.microsoft.com/en-us/library/ms720151(~~VS.85~~).~~aspx SAPI5~~.3 ~~overview~~]
	~~<font color="red">To do - SAPI5.1 on the MS site?</font>~~

	Also see:		Also see:
	*[~~http://en.~~wikipedia~~.org/wiki/Microsoft_Speech_API http~~:~~//en.wikipedia.org/wiki/Microsoft_Speech_API~~]		*[[wikipedia:Microsoft Speech API]]
	*[http://support.microsoft.com/kb/306901/ http://support.microsoft.com/kb/306901/]		*[http://support.microsoft.com/kb/306901/ http://support.microsoft.com/kb/306901/]
	*[http://support.microsoft.com/kb/306537/EN-US/ http://support.microsoft.com/kb/306537/EN-US/]		*[http://support.microsoft.com/kb/306537/EN-US/ http://support.microsoft.com/kb/306537/EN-US/]

Thomas Linder Puls: formatting

2010-02-06T20:47:08Z

formatting

Show changes

Thomas Linder Puls: /* SAPI.DLL Availability/Versions */ Title without "DLL"

2010-02-06T16:27:58Z

SAPI.DLL Availability/Versions: Title without "DLL"

← Older revision		Revision as of 18:27, 6 February 2010
Line 66:		Line 66:

	Only the <PHRASE> and <OPT> tags contain words/phrases that will be recognisable spoken words<BR><BR>		Only the <PHRASE> and <OPT> tags contain words/phrases that will be recognisable spoken words<BR><BR>
	=== SAPI~~.DLL~~ Availability/Versions ===		=== SAPI Availability/Versions ===

	*<b>Windows Vista and Windows 7:</b> SAPI 5.3 is part of Windows Vista and Windows 7, but it will only work for the languages that Microsoft supports (and Danish with PDC's engine).		*<b>Windows Vista and Windows 7:</b> SAPI 5.3 is part of Windows Vista and Windows 7, but it will only work for the languages that Microsoft supports (and Danish with PDC's engine).

Thomas Linder Puls: DLL => COM component

2010-02-06T16:26:25Z

DLL => COM component

← Older revision		Revision as of 18:26, 6 February 2010
Line 1:		Line 1:
	===Basics===		===Basics===

	Microsoft provides a Speech API - SAPI - which covers both Speech Recognition and Speech Synthesis. Most of this page deals with Speech Recognition (SR). It is provided as a ~~DLL~~, which works very nicely (thanks to Thomas and co.) with Visual Prolog 7.2, and with a defined grammar. It is surprisingly accurate and responsive, even with a cheap microphone. Microsoft has produced SAPI recognizers for 4-5 languages including English. PDC has produced a SAPI recognizer for Danish:		Microsoft provides a Speech API - SAPI - which covers both Speech Recognition and Speech Synthesis. Most of this page deals with Speech Recognition (SR). It is provided as a COM component, which works very nicely (thanks to Thomas and co.) with Visual Prolog 7.2, and with a defined grammar. It is surprisingly accurate and responsive, even with a cheap microphone. Microsoft has produced SAPI recognizers for 4-5 languages including English. PDC has produced a SAPI recognizer for Danish:
	[http://www.pdc.dk/dk/dictus/ Dictus]. There may also be SAPI recognizers for other languages (but other than MS and PDC there don't seem to be any).		[http://www.pdc.dk/dk/dictus/ Dictus]. There may also be SAPI recognizers for other languages (but other than MS and PDC there don't seem to be any).

Steve Lympany: removed section (replaced with reference)

2010-01-29T12:12:15Z

removed section (replaced with reference)

@@ Line 21: / Line 21: @@
 *[http://support.microsoft.com/kb/306537/EN-US/ http://support.microsoft.com/kb/306537/EN-US/]
 *[http://msdn.microsoft.com/en-us/library/ee431799 http://msdn.microsoft.com/en-us/library/ee431799] (good introduction)
 When your program runs, you say something into the mic, pause, and the speech callback predicate is called. You then extract what was spoken as a string_list, which you pass onto your own predicate to process. <BR>
 <font color="red">To do - Other data can be extracted?<BR>
 </font><BR><BR>
 ===Setting up your project===

Steve Lympany: /* Basics */ added ref

2010-01-29T12:11:07Z

Basics: added ref

← Older revision		Revision as of 14:11, 29 January 2010
Line 20:		Line 20:
	*[http://support.microsoft.com/kb/306901/ http://support.microsoft.com/kb/306901/]		*[http://support.microsoft.com/kb/306901/ http://support.microsoft.com/kb/306901/]
	*[http://support.microsoft.com/kb/306537/EN-US/ http://support.microsoft.com/kb/306537/EN-US/]		*[http://support.microsoft.com/kb/306537/EN-US/ http://support.microsoft.com/kb/306537/EN-US/]
			*[http://msdn.microsoft.com/en-us/library/ee431799 http://msdn.microsoft.com/en-us/library/ee431799] (good introduction)


	When your program runs, you say something into the mic, pause, and the speech callback predicate is called. You then extract what was spoken as a string_list, which you pass onto your own predicate to process. <BR>		When your program runs, you say something into the mic, pause, and the speech callback predicate is called. You then extract what was spoken as a string_list, which you pass onto your own predicate to process. <BR>
	<font color="red">To do - Other data can be extracted?<BR>		<font color="red">To do - Other data can be extracted?<BR>
	</font><BR><BR>		</font><BR><BR>

	=== Extract from MS Speech SDK 5.1 Help File===		=== Extract from MS Speech SDK 5.1 Help File===
	<i>		<i>

Steve Lympany: /* Extract from MS Speech SDK 5.1 Help File */ added ref

2010-01-29T12:09:47Z

Extract from MS Speech SDK 5.1 Help File: added ref

← Older revision		Revision as of 14:09, 29 January 2010
Line 46:		Line 46:

	</font></i>		</font></i>
			The above text can also be found online, but is for SAPI5.4 :

	===Setting up your project===		===Setting up your project===

Steve Lympany: added MS SDK extract section

2010-01-29T12:03:08Z

added MS SDK extract section

← Older revision		Revision as of 14:03, 29 January 2010
Line 13:		Line 13:
	The SAPI overviews are here:		The SAPI overviews are here:

	* [http://msdn.microsoft.com/en-us/library/aa911607.aspx SAPI5.0 overview]		*[http://msdn.microsoft.com/en-us/library/aa911607.aspx SAPI5.0 overview]
	* [http://msdn.microsoft.com/en-us/library/ms720151(VS.85).aspx SAPI5.3 overview]		*[http://msdn.microsoft.com/en-us/library/ms720151(VS.85).aspx SAPI5.3 overview]
	<font color="red">To do - SAPI5.1 on the MS site?</font>		<font color="red">To do - SAPI5.1 on the MS site?</font>
	<br>Also see:		<br>Also see:
	*[http://en.wikipedia.org/wiki/Microsoft_Speech_API http://en.wikipedia.org/wiki/Microsoft_Speech_API]		*[http://en.wikipedia.org/wiki/Microsoft_Speech_API http://en.wikipedia.org/wiki/Microsoft_Speech_API]
	*[http://support.microsoft.com/kb/306901/ http://support.microsoft.com/kb/306901/]		*[http://support.microsoft.com/kb/306901/ http://support.microsoft.com/kb/306901/]
	* [http://support.microsoft.com/kb/306537/EN-US/ http://support.microsoft.com/kb/306537/EN-US/]		*[http://support.microsoft.com/kb/306537/EN-US/ http://support.microsoft.com/kb/306537/EN-US/]

	When your program runs, you say something into the mic, pause, and the speech callback predicate is called. You then extract what was spoken as a string_list, which you pass onto your own predicate to process. <BR>		When your program runs, you say something into the mic, pause, and the speech callback predicate is called. You then extract what was spoken as a string_list, which you pass onto your own predicate to process. <BR>
	<font color="red">To do - Other data can be extracted?<BR>		<font color="red">To do - Other data can be extracted?<BR>
	</font><BR><BR>		</font><BR><BR>
			=== Extract from MS Speech SDK 5.1 Help File===
			<i>
			<font color="blue">
			The Microsoft Speech API (SAPI) is a software layer used by speech-enabled applications to communicate with Speech Recognition (SR) engines and Text-to-Speech (TTS) engines. SAPI includes an Application Programming Interface (API) and a Device Driver Interface (DDI). Applications communicate with SAPI using the API layer and speech engines communicate with SAPI using the DDI layer.

			A speech-enabled application and an SR engine do not directly communicate with each other – all communication is done using SAPI. SAPI controls a number of aspects of a speech system, such as:
			*Controlling audio input, whether from a microphone, files, or a custom audio source; and converting audio data to a valid engine format.
			*Loading grammar files, whether dynamically created or created from memory, URL or file; and resolving grammar imports and grammar editing.
			*Compiling standard SAPI XML grammar format, and conversion of custom grammar formats, and parsing semantic tags in results.
			*Sharing of recognition across multiple applications using the shared engine, as well as all marshaling between engine and applications.
			*Returning results and other information back to the application and interacting with its message loop or other notification method. Using these methods, an engine can have a much simpler threading model than in SAPI 4, because SAPI 5 does much of the thread handling.
			*Storing audio and serializing results for later analysis.
			*Ensuring that applications do not cause errors – preventing applications from calling the engine with invalid parameters, and dealing with applications hanging or crashing.


			The SR engine performs the following tasks:
			*Uses SAPI grammar interfaces and loads dictation.
			*Performs recognition.
			*Polls SAPI for information about grammar and state changes.
			*Generates recognitions and other events to provide information to the application. <BR><BR>

			</font></i>
	===Setting up your project===		===Setting up your project===

Steve Lympany: /* Basics */

2010-01-25T13:22:44Z

Basics

← Older revision		Revision as of 15:22, 25 January 2010
Line 8:		Line 8:
	Generally, the COM/DLL is provided with Windows (but see below - "Availability"). With a copy of the DLL in your project folder, it's easy to import it into your project. It is not necessary for it to be there at run time (i.e. there's no need to distribute it with your app to end users).		Generally, the COM/DLL is provided with Windows (but see below - "Availability"). With a copy of the DLL in your project folder, it's easy to import it into your project. It is not necessary for it to be there at run time (i.e. there's no need to distribute it with your app to end users).

			If you need it (see "availability" below) you can download the SDK here:
	[http://www.microsoft.com/downloads/details.aspx?FamilyID=5e86ec97-40a7-453f-b0ee-6583171b4530&displaylang=en MS Download site]; you need the 68Mb file '''SpeechSDK51.exe''' near the bottom of the page.		[http://www.microsoft.com/downloads/details.aspx?FamilyID=5e86ec97-40a7-453f-b0ee-6583171b4530&displaylang=en MS Download site]; you need the 68Mb file '''SpeechSDK51.exe''' near the bottom of the page.