请问tts（text to speech）怎样安装和使用

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http://etc.elec.bnu.edu.cn/application%20and%20development/reading.htm金山词霸2000的奂文全文朗读功能相信一定给尝试过的用户留下了很深刻的印象，而作为一个程序设计者，你一定也想在自己的程序中加入类似的功能吧，因为那将让自己的程序增色不少。其实这并不是一件困难的事，因为金山词霸实际上也只是直接使用了MS的TTS（Text-to-Speech）技术而已，通过对MS Speech API 的编程，我们完全可以实现比其更强大的功能。下面，让我们在Delphi环境下实际尝试一下。首先从金山词霸的光盘上\ ciba目录下运行并安装mstts. Exe(MS TTs engine)和spchapi. Exe (MS Speech API).再在Delphi 里新建一个application。然后从Delphi的菜单Project/Import Type Library. . .中选击Add. . .，浏览到Windows目录下的Speech子目录里，打开vtxtauto. Tlb，可以看到下面Class names中会出现我们需要的接口的包装类的名字TVTxtAuto，注意对话框底部的Generate Component Wrapper需要被选中，点击Create Unit 就可以打开一个名为VtxtAuTo_TLB的Unit。至此，我们就可以开始实际编程了。首先在Form的OnCreate中对需要使用接口初始化并进行注册：．．．Procedure TfrmMain. FormCreate (Sender. Tobject); beginFISpeech: = CoVTxtAuto_Create;FISpeech. Register (“Demo Site’, ‘Demo App’); end;．．．由于Delphi对接口进行了良好的包装，因此，只需直接建立包装类，其他后台的操作如接口的查询、释放等交给Delphi在后台自动完成。注意这里的Register操作是必不可少的，因为可能有多个程序不同设置使用TIS引擎。然后在MainForm上放一个Tmemo和若干个Tbutton，并在其OnClick中加入对应的代码。Form定义如下：Object frmMain: TfrmMainLeft = 296Top = 187BorderStyle = bsDialogCaption = ‘英文全文朗读演示’ClientHeight = 185ClientWidth = 456Color = clBtnFaceFont. Charset = GB2312_CHARSETFont. Color = clWindowTextFont. Height = -12Font. Name = ‘宋体’Font. Style = [ ]OldCreateOrder = FalsePosition = poDesktopCenterOnCreate = FormCreatePixelsPerInch = 96TexHeight = 12Object memText: TmemoLeft =8Top = 8Width = 361Height = 169ScrollBars = ssVerticalTabOrder = 0EndObject btnRead: TbuttonLeft = 376Top = 8Width = 75Height = 25Caption = ‘朗读（&R）’TabOrder = 1OnClick = btnReadClickEndObject btnPause: TbuttonLeft = 376Top = 40Width = 75Height = 25Caption = ‘暂停（&P）’Enabled = FalseTabOrder = 2OnClick = btnPauseClickEnd Object btnStop: TbuttonLeft = 376Top = 72Width = 75Height = 25Caption = ‘停止（&S）’Enabled = FalseTabOrder = 3OnClick = btnStopClickEndObject btnForward: TbrttonLeft = 376Top = 120Width = 75Height = 25Caption = ‘下一句（&N）’Enabled = FalseTabOrder =4OnClick = btnForwardClickEnd Object btnRewind: TbuttonLeft = 376Top = 152Width = 75Height = 25Caption = ‘上一句（&W）’Enabled = falseTabOrder = 5OnClick = btnRewindClickEnd End关键代码段如下：1．朗读与停止．．．procedure TfrmMain. BtnReadClick (Sender: Tobject); beginFISpeech. Speak (memText. Lines. Text, vtxtst_READING0;BtnPause. Enabled : = True;BtuStop. Enabled : = True;End;Procedure TfrmMain. BtnStopClicl (Sender: Tobject); beginFISpeech. StopSpeaking;BtnPause. Enabled : = False;BtnStop. Enabled : = False;BtnPause. Caption : = ‘暂停（&P）’；end;．．．speak成员函数的第一个参数向TTS引擎传递需要朗读的文字，第二个参数由指定朗读时使用的语气和优先级的两个符号合并而成。　符号
值
意义

语气　
vtxtst_STATEMENT
$00000001
平常说话的语气（缺省）
vtxtst_QUESTION
$00000002
提问的语气
vtxtst_COMMAND
$00000004
命令的语气
vtxtst_WARNING
$00000008
警告的语气
vtxtst_READING
$00000010
阅读文档时的语气
vtxtst_NUMBERS
$00000020
适合阅读数字的语气
vtxtst_SPREADSHEET
$00000040
适合阅读电子表格中元素的语气
优先级
vtxtsp_VERYHING
$00000080
立即读出，可打断正在读的内容
vtxtsp_HIGH
$00000100
尽快读出，加入播放队列开始
vtxtsp_NORMAL
$00000200
仅仅加入播放队列末尾（缺省）　2．暂停为与恢复．．．procedure TfrmMain. BtnPauseClick (Sender: Tobject);beginwith FISpeech do if IsSpeaking thenbeginAudioPause;BtnPause. Caption : = ‘恢复（&R）’；EndElseBeginAudioResume;BtnPause. Caption : = ‘暂停（&R）’；End;End;．．．这里通过IsSpeaking属性可以取得当前状态，然后通过audioPause和AudioResume暂停和恢复朗读。另外用成员函数AudioFastForward和AudioRewind可以向前和后跳过一句朗读，通过读写speed属性还可以取得或调协朗读的语速，单位是字／分，缺省值为170。注意speed和Enabled属性缺省设置是只写的，但实际上IVTxtAuto提供了Get_Speed和Get_Enabled函数，所以我们只要把VtxtAuto_TLB单元中的声明修改一下，如：．．．IVTxtAuto = interface (Idispatch)．．．property Speed: Integer read Get_Speed write Set_Speed;propert Enabled: Integer read Get_Speed write Set_Speed;．．．end;．．．即可正常使用Speed和enabled属性了。至此，一个简单的英文全文朗读器就完成了，有兴趣的朋友可以为其加入监视剪贴板，热键激活等功能。本文程序在win NT/98 + Delphi 4/5环境下调试通过。
unit frm_VoiceMain;interfaceuses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, OleServer, SpeechLib_TLB, ComCtrls;type
  TfrmVoices = class(TForm)
    SpVoice1: TSpVoice;
    Button1: TButton;
    cmbVoices: TComboBox;
    memText: TMemo;
    Button2: TButton;
    tbRate: TTrackBar;
    tbVolume: TTrackBar;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Button3: TButton;
    Button4: TButton;
    Label4: TLabel;
    cmbAudioOutput: TComboBox;
    Button5: TButton;
    procedure Button1Click(Sender: TObject);
    procedure cmbVoicesChange(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure tbRateChange(Sender: TObject);
    procedure tbVolumeChange(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure cmbAudioOutputChange(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    procedure InitVoices;   //获取系统安装的语音库
    procedure InitAudioOutputs; //获取系统声音输出设备
  public
    { Public declarations }
  end;var
  frmVoices: TfrmVoices;implementation{$R *.DFM}procedure TfrmVoices.Button1Click(Sender: TObject);
begin
  SpVoice1.Speak(memText.text,1);
end;procedure TfrmVoices.cmbVoicesChange(Sender: TObject);
var
  a,b:WideString;
begin
  SpVoice1.Voice:=SpVoice1.GetVoices(a,b).item(cmbVoices.ItemIndex)
end;procedure TfrmVoices.InitVoices;
var
  a,b:WideString;
  Voices:ISpeechObjectTokens;
  i:integer;
begin
  Voices:=SpVoice1.GetVoices(a,b);
  for i:=0 to Voices.Count-1 do begin
    cmbVoices.Items.Add(Voices.item(i).GetDescription(i))
  end;
  cmbVoices.ItemIndex:=0;
end;procedure TfrmVoices.FormCreate(Sender: TObject);
begin
  InitVoices;
  InitAudioOutputs;
  tbRate.Position:=SpVoice1.Rate;
  tbVolume.Position:=SpVoice1.Volume;
end;procedure TfrmVoices.tbRateChange(Sender: TObject);
begin
SpVoice1.Rate :=tbRate.Position;
end;procedure TfrmVoices.tbVolumeChange(Sender: TObject);
begin
  SpVoice1.Volume := tbVolume.Position;
end;procedure TfrmVoices.Button3Click(Sender: TObject);
begin
  SpVoice1.Pause
end;procedure TfrmVoices.Button4Click(Sender: TObject);
begin
  SpVoice1.Resume
end;procedure TfrmVoices.InitAudioOutputs;
var
  a,b:WideString;
  AudioOutputs:ISpeechObjectTokens;
  i:integer;
begin
  AudioOutputs:=SpVoice1.GetAudioOutputs(a,b);
  for i:=0 to AudioOutputs.Count-1 do begin
    cmbAudioOutput.Items.Add(AudioOutputs.item(i).GetDescription(i))
  end;
  cmbAudioOutput.ItemIndex:=0;
end;procedure TfrmVoices.cmbAudioOutputChange(Sender: TObject);
var
  a,b:WideString;
begin
  SpVoice1.AudioOutput:=SpVoice1.GetAudioOutputs(a,b).item(cmbAudioOutput.ItemIndex)
end;procedure TfrmVoices.Button5Click(Sender: TObject);
var
  WaveFileStream:SpFileStream;
  SpFileMode:SpeechStreamFileMode;
begin
  SpFileMode := SpeechStreamFileMode.SSFMCreateForWrite;
  WaveFileStream.Open('c:\1.wav',SpFileMode,false);
  SpVoice1.AudioOutputStream:= WaveFileStream;
  SpVoice1.Speak(memtext.text,1);
  SpVoice1.WaitUntilDone(1000);
  WaveFileStream.Close;
end;end.

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请问tts（text to speech）怎样安装和使用

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