1. Microsoft Text To Speech Engine Download
2. How To Add More Voices To Microsoft Text To Speech Engine
3. Text-to-speech Engines For Microsoft Supported Languages
4. Microsoft Whistler Text To Speech Engine

Microsoft Speech API 5.3

For customers using OneNote Learning Tools, Learning Tools in Word, and Read Aloud in the Editor pane in Office and the Microsoft Edge browser, this article documents ways to download new languages for the Text-to-Speech feature in different versions of Windows. Install a new Text-to-Speech language in Windows 10. Within Windows 10 settings, you'll download the desired language and then set.

Oct 25, 2011  The following downloads contain the Microsoft Speech Recognition and Text-to-Speech engine data files for all currently supported languages for the Microsoft Speech Platform - Runtime 11. System Requirements Supported Operating System Windows 7, Windows Server 2008, Windows Server 2008 R2, Windows Vista. This web page contains information about the Add or Remove Programs control panel entry - Microsoft Text-to-Speech Engine 4.0 (English). More information can be found by visiting this search result. Should I remove Microsoft Text-to-Speech Engine 4.0 (English) by Microsoft? Text-to-Speech (TTS) capabilities for a computer refers to the ability to play back text in a spoken voice. Should I remove Microsoft Text-to-Speech Engine 4.0 (English) by Microsoft? Text-to-Speech (TTS) capabilities for a computer refers to the ability to play back text in a spoken voice. Convert text to audio in near real time, play it back, and save it as a file for later use. Text to Speech is available in both Neural and Standard versions. Applying the latest in digital speech innovation, the Neural Text to Speech capability makes the voices of your apps nearly indistinguishable from recordings of people. First install the Microsoft Speech Platform - Runtime 11.0; Click the file you want to download from the list below. Do one of the following: To start the installation immediately, click Open or Run this program from its current location.

The SAPI application programming interface (API) dramatically reduces the code overhead required for an application to use speech recognition and text-to-speech, making speech technology more accessible and robust for a wide range of applications.

This section covers the following topics:

• API Overview
• API for Text-to-Speech
• API for Speech Recognition

API Overview

The SAPI API provides a high-level interface between an application and speech engines. SAPI implements all the low-level details needed to control and manage the real-time operations of various speech engines.

The two basic types of SAPI engines are text-to-speech (TTS) systems and speech recognizers. TTS systems synthesize text strings and files into spoken audio using synthetic voices. Speech recognizers convert human spoken audio into readable text strings and files.

API for Text-to-Speech

Applications can control text-to-speech (TTS) using the ISpVoice Component Object Model (COM) interface. Once an application has created an ISpVoice object (see Text-to-Speech Tutorial), the application only needs to call ISpVoice::Speak to generate speech output from some text data. In addition, the IspVoice interface also provides several methods for changing voice and synthesis properties such as speaking rate ISpVoice::SetRate, output volume ISpVoice::SetVolume and changing the current speaking voice ISpVoice::SetVoice

Special SAPI controls can also be inserted along with the input text to change real-time synthesis properties like voice, pitch, word emphasis, speaking rate and volume. This synthesis markup, using standard XML format, is a simple but powerful way to customize the TTS speech, independent of the specific engine or voice currently in use. See the XML TTS Tutorial for more details.

The IspVoice::Speak method can operate either synchronously (return only when completely finished speaking) or asynchronously (return immediately and speak as a background process). When speaking asynchronously (SPF_ASYNC), real-time status information such as speaking state and current text location can polled using ISpVoice::GetStatus. Also while speaking asynchronously, new text can be spoken by either immediately interrupting the current output (SPF_PURGEBEFORESPEAK), or by automatically appending the new text to the end of the current output.

In addition to the ISpVoice interface, SAPI also provides many utility COM interfaces for the more advanced TTS applications.

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Events

SAPI communicates with applications by sending events using standard callback mechanisms (Window Message, callback proc or Win32 Event). For TTS, events are mostly used for synchronizing to the output speech. Applications can sync to real-time actions as they occur such as word boundaries, phoneme or viseme (mouth animation) boundaries or application custom bookmarks. Applications can initialize and handle these real-time events using ISpNotifySource, ISpNotifySink, ISpNotifyTranslator, ISpEventSink, ISpEventSource, and ISpNotifyCallback.

Lexicons

Applications can provide custom word pronunciations for speech synthesis engines using methods provided by ISpContainerLexicon, ISpLexicon and ISpPhoneConverter.

Resources

Finding and selecting SAPI speech data such as voice files and pronunciation lexicons can be handled by the following COM interfaces: ISpDataKey, ISpRegDataKey, ISpObjectTokenInit, ISpObjectTokenCategory, ISpObjectToken, IEnumSpObjectTokens, ISpObjectWithToken, ISpResourceManager and ISpTask.

Audio

Finally, there's an interface for customizing the audio output to some special destination such as telephony and custom hardware (ISpAudio, ISpMMSysAudio, ISpStream, ISpStreamFormat, ISpStreamFormatConverter).

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API for Speech Recognition

Just as ISpVoice is the main interface for speech synthesis, ISpRecoContext is the main interface for speech recognition. Like the ISpVoice, it is an ISpEventSource, which means that it is the speech application's vehicle for receiving notifications for the requested speech recognition events.

An application has the choice of two different types of speech recognition engines (ISpRecognizer). A shared recognizer that could possibly be shared with other speech recognition applications is recommended for most speech applications. To create an ISpRecoContext for a shared ISpRecognizer, an application need only call COM's CoCreateInstance on the component CLSID_SpSharedRecoContext. In this case, SAPI will set up the audio input stream, setting it to SAPI's default audio input stream. For large server applications that would run alone on a system, and for which performance is key, an InProc speech recognition engine is more appropriate. In order to create an ISpRecoContext for an InProc ISpRecognizer, the application must first call CoCreateInstance on the component CLSID_SpInprocRecoInstance to create its own InProc ISpRecognizer. Then the application must make a call to ISpRecognizer::SetInput (see also ISpObjectToken) in order to set up the audio input. Finally, the application can call ISpRecognizer::CreateRecoContext to obtain an ISpRecoContext.

The next step is to set up notifications for events the application is interested in. As the ISpRecognizer is also an ISpEventSource, which in turn is an ISpNotifySource, the application can call one of the ISpNotifySource methods from its ISpRecoContext to indicate where the events for that ISpRecoContext should be reported. Then it should call ISpEventSource::SetInterest to indicate which events it needs to be notified of. The most important event is the SPEI_RECOGNITION, which indicates that the ISpRecognizer has recognized some speech for this ISpRecoContext. See SPEVENTENUM for details on the other available speech recognition events.

Microsoft Text To Speech Engine Download

Finally, a speech application must create, load, and activate an ISpRecoGrammar, which essentially indicates what type of utterances to recognize, i.e., dictation or a command and control grammar. First, the application creates an ISpRecoGrammar using ISpRecoContext::CreateGrammar. Then, the application loads the appropriate grammar, either by calling ISpRecoGrammar::LoadDictation for dictation or one of the ISpRecoGrammar::LoadCmdxxx methods for command and control. Finally, in order to activate these grammars so that recognition can start, the application calls ISpRecoGrammar::SetDictationState for dictation or ISpRecoGrammar::SetRuleState or ISpRecoGrammar::SetRuleIdState for command and control.

When recognitions come back to the application by means of the requested notification mechanism, the lParam member of the SPEVENT structure will be an ISpRecoResult by which the application can determine what was recognized and for which ISpRecoGrammar of the ISpRecoContext.

An ISpRecognizer, whether shared or InProc, can have multiple ISpRecoContexts associated with it, and each one can be notified in its own way of events pertaining to it. An ISpRecoContext can have multiple ISpRecoGrammars created from it, each one for recognizing different types of utterances.

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The Microsoft text-to-speech voices are speech synthesizers provided for use with applications that use the Microsoft Speech API (SAPI) or the Microsoft Speech Server Platform. There are client, server, and mobile versions of Microsoft text-to-speech voices. Client voices are shipped with Windows operating systems; server voices are available for download for use with server applications such as Speech Server, Lync etc. for both Windows client and server platforms, and mobile voices are often shipped with more recent versions of Windows Phone. Windows 10 also brings the mobile text to speech voices to the desktop starting with the Anniversary Update.

• 1Voices
  • 1.4Windows 10 and later

Voices[edit]

Windows 2000 and XP[edit]

Microsoft Sam is the default text-to-speech male voice in Microsoft Windows 2000 and Windows XP. It is used by Narrator, the screen reader program built into the operating system.

Microsoft Mike and Microsoft Mary are optional male and female voices respectively, available for download from the Microsoft website. Michael and Michelle are also optional male and female voices licensed by Microsoft from Lernout & Hauspie, and available through Microsoft Office XP and Microsoft Office 2003 or Microsoft Reader.

There are both SAPI 4 and SAPI 5 versions of these text-to-speech voices. SAPI 4 voices are only available on Windows 2000 and later Windows NT-based operating systems. While SAPI 5 versions of Microsoft Mike and Microsoft Mary are downloadable only as a Merge Module,^[1] the installable versions may be installed on end users' systems by speech applications such as Microsoft Reader. SAPI 4 redistributable versions are downloadable for Windows 9x, although no longer from the Microsoft website.

Microsoft Sam, Microsoft Mike and Microsoft Mary can be used on Windows Vista and later with a third-party program (like Speakonia and TTSReader) installed on the machine that supports these operating systems; however, the speech patterns differ from the Windows XP versions of these voices. In addition, LH Michael and LH Michelle can work on Windows 7 and later if Speakonia and the SAPI 4 version of the voices in British English is downloaded.

Windows Vista and 7[edit]

Beginning with Windows Vista and Windows 7, Microsoft Anna is the default English voice. It is a SAPI5-only female voice and is designed to sound more natural than Microsoft Sam.^[2]Microsoft Streets & Trips 2006 and later install the Microsoft Anna voice on Windows XP systems for the voice-prompt direction feature. There is no male voice shipping with Windows Vista and Windows 7. A female voice called Microsoft Lili that replaces the earlier male SAPI5 voice 'Microsoft Simplified Chinese' is available in Chinese versions of Windows Vista and Windows 7. It can also be obtained in non-Chinese versions of Windows 7 or Vista by installing the Chinese language pack.

In 2010, Microsoft released the newer Speech Platform compatible voices for Speech Recognition and Text-to-Speech for use with client and server applications. These voices are available in 26 languages^[3] and can be installed on Windows client and server operating systems. Speech Platform voices unlike SAPI 5 voices, are female-only, no male voices are released publicly yet.

Windows 8 and 8.1[edit]

In Windows 8, there are three new client (desktop) voices - Microsoft David (US male), Hazel (UK female) and Zira (US female) which sound more natural than the now-eliminated Microsoft Anna. The server versions of these voices are available via above mentioned Speech Platform for operating systems earlier than Windows 8. Unlike Windows 7 or Vista, one cannot use any third-party program for Microsoft Anna because there is no Anna Voice API for download. Other voices are available for specific language versions of either Windows 8 or Windows 8.1.^{[citation needed]}

Windows 10 and later[edit]

In Windows 10, Microsoft Hazel was removed from the US English Language Pack and the Microsoft voices for Mobile (Phone/tablet) are available (Microsoft Mark and Microsoft Zira). These are the same voices found on Windows Phone 8, Windows Phone 8.1 and Windows 10 Mobile.

Also with these voices language packs are also available for a variety of voices similar to that of Windows 8 and 8.1. None of these voices match the Cortana text-to-speech voice which can be found on Windows Phone 8.1, Windows 10, and Windows 10 Mobile.

In an attempt to unify its software with Windows 10, all of Microsoft's current platforms use the same text-to-speech voices except for Microsoft David and a few others.

Mobile[edit]

Every mobile voice package has the combination of male/female, while most of the desktop voice packages have only female voices. All mobile voices have been made universal and any user who downloads the language pack of that choice will have one extra male and female voice per that package.

A hidden text-to-speech voice in Windows 10 called Microsoft Eva Mobile is present within the system. Users can download a pre-packaged registry file from the windowsreport.com website. Microsoft Eva is believed to be the early voice for Cortana until Microsoft replaced her with the voice of Jen Taylor in most areas.

These voices are updated with Windows to sound more natural than in the original version as seen in the Windows 10 Update.

See also[edit]

References[edit]

1. ^Speech SDK 5.1
2. ^Chambers, Rob (August 29, 2006). 'Microsoft Anna - The new TTS voice in Vista'. MSDN Blogs. Microsoft. Retrieved June 26, 2015.
3. ^http://msdn.microsoft.com/en-us/library/hh361572.aspx

How To Add More Voices To Microsoft Text To Speech Engine

External links[edit]

Text-to-speech Engines For Microsoft Supported Languages

• Official website^{[dead link]}

Microsoft Whistler Text To Speech Engine