B2%5D-51.png' alt='How To Install Speech Recognition Engine Download' title='How To Install Speech Recognition Engine Download' />Speech Synthesis Speech Recognition Using SAPI 4 Low Level Interfaces.Brian Long www. blong.Table of Contents.Click here to download the files associated.If you find this article useful then please consider making a donation.It will be appreciated however big or small it might be and will encourage Brian to continue researching and writing about interesting subjects in the future.This article looks at adding support for speech capabilities to Microsoft Windows.Delphi, using the Microsoft Speech API version 4 SAPI.SAPI5CPL.jpg' alt='How To Install Speech Recognition Engine Download' title='How To Install Speech Recognition Engine Download' />For an overview on the subject of speech technology please click.For information on using SAPI 5.Delphi applications click.Download the free trial version below to get started.Doubleclick the downloaded file to install the software.Learn how to build and manage powerful applications using Microsoft Azure cloud services.Get documentation, sample code, tutorials, and more.The DictationBridge team is proud to announce the immediate release of DictationBridge 1.Release Candidate 1 for the NVDA version.You can download the software and.For better sounding english female voices.Step 3 Install the Microsoft Speech Control Panel 840K The Speech Control Panel will add an icon to your Control Panel.The older SAPI 4 interfaces are defined in two ways.There are high. level interfaces, intended to make implementation easier, but which sacrifice.These are intended for quick results but can be quite effective.There are also low level interfaces, which give full control but involve more.These are intended for the serious programmer to work with.The high level interfaces are implemented.Microsoft in COM objects to call the lower level interfaces, taking care.How To Install Speech Recognition Engine Download' title='How To Install Speech Recognition Engine Download' />The low level interfaces themselves are implemented.TTS and SR engines that you obtain and install.We will look at the low level interfaces available for TTS and SR in this article.You can find coverage of the high level interfaces by clicking.Part of the process of speech recognition involves deciding what words have.Recognisers use a grammar to decide what has been said.In the case of dictation, a grammar can be used to indicate some words that.It is not feasible to try and represent the entire.English language as a grammar, so the recogniser does its best and uses.The recogniser tries to use context information from.At its simplest. the Microsoft SR engine can use a dictation grammar like this.UK English. With Command and Control, the permitted words are limited to the supported.The grammar defines various rules that dictate what will be said and.Rather than trying to understand.A Command and Control grammar is typically referred to as Context Free.Grammar CFG. A simple CFG that recognises three colours might look like this.UK English 2. 05.Start. lt Start colour red.Start colour green.Start colour blue.Note Start is the root point of the grammar.Grammars support lists to make implementing many similar commands easy.For. UK English 2.Start. lt Start colour lt Colour.Colour. lt Colour red.Colour green. Colour blue.You can find more details about the supported grammar syntax in the SAPI documentation.The low level interfaces are implemented by the TTS and SR engines installed.These interfaces are made available as true COM interfaces.Active. X controls.There are more details to worry about with.SAPI 4 documentation.The low level COM APIs are described as the Direct.Text. To. Speech API and.Direct. Speech. Recognition API.These are implemented in speech.Windows speech directory, described simply as Microsoft Speech.The pertinent interfaces are all defined in the.SAPI 4 import unit.The code listed in this section comes from the sample.Direct. Text. To.Speech. dpr in the COM directory.The program looks like.The following sections describe the important COM objects you work with and.The first thing you need to do is initialise an audio destination object that.To make sure things are on the right.Wave Mapper is selected as the device to work with.Speech, MMSystem,.Tfrm. Direct. TTSAPI classTForm.AMMD IAudio. Multi.Media. Device. procedure Tfrm.Direct. TTSAPI. Form.CreateSender TObject.Send. Messagelst.Progress. Handle, LBSETHORIZONTALEXTENT, Width, 0.LogAbout to connect to multimedia device.AMMD Create. Com.ObjectCLSIDMMAudio.Dest as IAudio. Multi.Media. Device. Ole.CheckAMMD. Device.Num. SetWAVEMAPPER.LogConnected to multimedia device.A TTS engine typically offers various modes different types of voices and.A TTS enumerator implements the ITTSEnum.You can. also use the ITTSFind interface.Each mode is represented by a TTTSMode.Info. record structure.This sample application lists all supported modes in a combobox and lets the.The combobox Items.Strings. array and pointers to the corresponding mode records in the Objects.As different modes are selected a listbox is used to display the mode.This way, the user can make an informed.Tfrm. Direct. TTSAPI classTForm.TTSEnum ITTSEnum.Tfrm. Direct. TTSAPI.Form. CreateSender TObject.Mode. Info TTSMode.Info. PMode. Info PTTSMode.Info. Num. Found DWord.LogAbout to enumerate speech engines.TTSEnum Create. Com.ObjectCLSIDTTSEnumerator as ITTSEnum.Ole. CheckTTSEnum.Reset. Ole. CheckTTSEnum.Next1, Mode. Info, Num.Found. While Num.Found 0 dobegin. NewPMode.Info. PMode. Info Mode.Info. cb. Engines.Items. Add. ObjectStringMode.Info. sz. Mode. Name, TObjectPMode.Info. Ole. CheckTTSEnum.Next1, Mode. Info, Num.Found. if cb. Engines.Items. Count 0 thenbegin.Engines. Item. Index 0 Select 1st engine.Engines. On. Changecb.Engines ensure On.Change triggersend.LogEnumerated speech engines.Tfrm. Direct. TTSAPI. Dad And Daughter Bonding Activities For Mother . Form. DestroySender TObject.Start. Stop. Engine.Checked False. Clean up TTTSMode.Info memory for each speech enginefor I 0 to cb.Engines. Items. Count 1 do.DisposePTTSMode. Infocb.Engines. Items. ObjectsI.Tfrm. Direct. TTSAPI.Engines. ChangeSender TObject.Genders arrayGENDERNEUTRAL.GENDERMALE of. String.Neutral, Female, Male.Engine. Info. Items dobegin.PMode. Info PTTSMode.Infocb. Engines. Items.Objectscb. Engines.Item. Index. AddFormatName 9s, PMode.Info. sz. Mode. Name.AddFormatLanguage 9s, PMode.Info. Language. sz.Dialect. AddFormatManufacturer 9s, PMode.Info. sz. Mfg. Name.AddFormatProduct 9s, PMode.Info. sz. Product.Name. AddFormatMode ID 9s, GUIDTo.StringPMode. Info.Mode. ID. AddFormatEngine ID 9s, GUIDTo.StringPMode. Info.Engine. ID. AddFormatSpeaker 9s, PMode.Info. sz. Speaker.AddFormatStyle 9s, PMode.Info. sz. Style. AddFormatGender 9s, GendersPMode.Info. w. Gender. PMode.Info. w. Age of. TTSAGEBABY AddAge 9Baby.TTSAGETODDLER AddAge 9Toddler.TTSAGECHILD AddAge 9Child.TTSAGEADOLESCENT AddAge 9Adolescent.TTSAGEADULT AddAge 9Adult.TTSAGEELDERLY AddAge 9Elderly.Once a voice mode has been chosen, it can be identified by its mode identifier.GUID stored in the g.Mode. ID. field of the TTTSMode.Info record. This can be stored with your application data in order to remember which voice.The Voice Text API also supports mode identifiers the.IVTxt. Attributes.TTSMode. Set method.GUID. Once a voice has been chosen it is selected by calling ITTSEnum.Select. or ITTSFind.Select and an engine.The Select. method takes the desired mode identifier and an interface to an audio destination.ITTSCentral. interface of the engine object in an out.TTSCentral ITTSCentral.LogAbout to start selected speech engine.Ole. CheckTTSEnum.SelectPMode. Info.Mode. ID, TTSCentral, AMMD.LogStarted selected speech engine.The engine object also probably implements the ITTSDialogs.TTS engine dialogs and the ITTSAttributes.You can either. use the Supports function to.TTTSMode. Info. dw.Interfaces. mask for the TTSIITTSATTRIBUTES.TTSIITTSDIALOGS flags.This code gets access to both interfaces and checks the current voice pitch.TTSDialogs ITTSDialogs.TTSAttrs ITTSAttributes.PMode. Info. dw. Interfaces and TTSIITTSDialogs 0 thenbegin.TTSDialogs TTSCentral as ITTSDialogs.LogDialogs are available.LogDialogs are not supported.LogAbout to check speech attributes.PMode. Info. dw. Interfaces and TTSIITTSDialogs 0 thenbegin.TTSDialogs TTSCentral as ITTSDialogs.About. Enabled True.General. Enabled True.Lexicon. Enabled True.Translate. Enabled True.LogDialogs are available.LogDialogs are not supported.LogAbout to check speech attributes.PMode. Info. dw. Interfaces and TTSIITTSATTRIBUTES 0 thenbegin.TTSAttrs TTSCentral as ITTSAttributes.Check. Pitch. Check.Speed. Check. Volume.LogAttributes checked.Set. Attrs. Enabled True.Attrs. Enabled True.LogAttributes interface not supported.
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