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On the basis of the analysis about the Chinese-English engine of Microsoft Speech SDK, the paper achieves the development of speech commentary software about inquiry of ship engine damage cases with Visual Basic. And it also introduces carefully the development thoughts, programming ways and application cases of this software. 1 Achievement thoughts Speech Recognition (SR) and Text to Speech (TTS) have always been the hotspot of computer application. If you want to develop the application programs with functions of Speech Recognition and Text to Speech on the platform of Windows, it is a better choice for you to use Microsoft Speech SDK. Microsoft Speech SDK is a toolkit issued by Microsoft, which can support the development of speech application programs. Its latest version is 5.1 and can be downloaded for free on the website of Microsoft. If you want it to support Chinese, you still should download the relevant Language Pack. After downloading, you should first install Speech SDK, and then install the language pack of simplified Chinese so that your computer has the function of Chinese and English. The technology of Speech Recognition has been the hotspot concerned at home and abroad because of its practicability and interest. The companies of Microsoft, IBM and so on have issued in succession the products of Speech Recognition on the basis of PC. Among them, Microsoft’s Speech SDK completely supports the system development of simplified Chinese speech, and so it is an ideal tool to develop speech software. It is developed on the basis of the COM standard, and its bottom protocol is completely independent from the layer of application programs with the form of COM components, so it shields the complicated speech technologies for the application programmers, which fully reflects the advantage of COM. Speech Recognition is managed by Recognition Engine, which can achieve the recognition of Chinese from speech. Text to Speech is managed by TTS Engine mentioned above, which can achieve speech reading. Software programmers only concentrate on their own application, transfer the access (SAPI) of relevant speech application programs to achieve speech functions, and its structure is shown by Figure 1. Figure 1. Structure chart of TTS on the basis of Speech SDK 2 Software Programming The category of SpVoice is the core category of TTS supporting. The object of SpVoice transfers TTS engine to achieve the function of reading. The category of SpVoice has the following main attributes: Voice: It means pronunciation, which is equivalent to the person who is reading, including Microsoft Mary, Microsoft Mike, Microsoft Sam and Microsoft Simplified Chinese. The first three categories among them only can read English and the last one can read both Chinese and English. Rate: the speed of reading, ranging from -10 to +10. The bigger the number is, the quicker the speed is. Volume: Volume, ranging from 0 to 100. The bigger the number is, the larger the volume is. SpVoice has the following main ways: Speak: It transfers text information to speech and reads according to the designated parameter. This way has two parameters of Text and Flags, which respectively mean the text of reading and the way of reading (synchronous, asynchronous and so on). Pause:It pauses to use all the reading process of this object. This way has no parameter. Resume: It resumes the relevant paused reading process of this object. This way has no parameter. Here are parts of codes. Definition of the initial variable Option Explicit Dim WithEvents Voice As SpVoice Dim m_speakFlags As SpeechVoiceSpeakFlags International Symposium on Material, Energy and Environment Engineering (ISM3E 2015) © 2015. The authors Published by Atlantis Press 487 Const NoAudioOutput = "No audio ouput object available" Private m_bSpeaking As Boolean Private m_bPaused As Boolean ‘Codes of form initialization Private Sub Form_Load() Me.Width = Screen.Width Me.Height = Screen.Height Set Voice = New SpVoice Dim Token As ISpeechObjectToken For Each Token In Voice.GetVoices VoiceCB.AddItem (Token.GetDescription()) Next VoiceCB.ListIndex = 0 RateSldr.Value = Voice.Rate VolumeSldr.Value = Voice.Volume m_speakFlags=SVSFlagsAsync Or SFPurgeBeforeSpeak Or SVSFIsXML SetSpeakingState False, False End Sub ‘Codes of clicking “Start playing” Private Sub SpeakBtn_Click() If rtbFaultProcess.Text = "" Then Exit Sub End If If Not (m_bPaused And m_bSpeaking) Then 'Voice.Speak rtbFaultProcess.Text, m_speakFlags Voice.Speak rtbFaultProcess.Text & "Analysis and processing" & rtbFaultMethod.Text & "Experience and lessons" & rtbFaultLesson.Text, SVSFlagsAsync End If If m_bPaused Then Voice.Resume SetSpeakingState True, False Exit Sub End Sub ‘Codes of “Stop playing” Private Sub StopBtn_Click() Voice.Speak vbNullString, SVSFPurgeBeforeSpeak If m_bPaused Then Voice.Resume SetSpeakingState False, False Exit Sub End Sub 3 An application case Through a complete case, the paper introduces how to develop speech application programs with Microsoft Speech SDK in Visival Basic 6.0. The function of this case application program is that the customer chooses a kind of ship engine damage accident (for example, diesel engines, connecting rods, auxiliary engines and other equipment), and chooses the detailed description of the relevant engine damage accident about this kind of accidents in the relevant figure. And then this inquiry software will shift to the window shown by Figure 2. Figure 2. the speech commentary window of the inquiry software about ship engine damage The contents of Figure 2 are as follows. The main engine can’t be started.

Development of Speech Commentary Software about Inquiry of Ship Engine Damage Cases