Public Class Form1
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族码烂闷 Dim 设置时间 As DateTime
Private Sub D1_CloseUp(ByVal sender As Object, ByVal e As System.EventArgs) Handles 日期时间选择.CloseUp
和.Text = 日兆历哪期时间选择.Value
设置时间 = 日期时间选择.Value
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
日期时间选择.Value = Now
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If Now.ToString = 和.Text Then
提醒显示.Text = "时间到了 你该去做些什么事了吧"
'Timer1.Enabled = False
Else
提醒显示.Text = "现在时间是：" Now
End If
End Sub
Private Sub 和_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles 和.TextChanged
设置时间 = 和.Text
End Sub
End Class
把类似下面的三行代码放入timer即可。关键是放音程序。
DealWav.mciSendString "open " sA " alias wav", sB, Len(sB), 0
DealWav.mciSendString "play wav ", sB, Len(sB), 0
DealWav.mciSendString "close wav ", sB, Len(sB), 0
送你DealWav模块
Dim WAVBuffer() As Byte
Dim DataLenOut As Long
Dim Datapos1 As Long
Dim Datapos2 As Long
Dim ChunkLen As Long
Dim factpos As Long
Type PCMWAVEFORMAT '标准 PCM 格式定义
wFormatTag As Integer '格式标志，区分不同的格式，PCM 为 1
nChannels As Integer '音频通道数，单声道销型为 1 ，立体声为 2
nSamplesPerSec As Long '每秒的采样数，即采样率。
'标准的采样率有8.000 kHz 、11.025 kHz 、
'22.050 kHz 、44.100 kHz 等。
nAvgBytesPerSec As Long '每秒的字节数，即数据率。
'数据率 = 通道数×采样率×采样大小 / 8
nBlockAlign As Integer '块对齐，即波形数据的最小单位。
'块对齐 = 通道数×采样大小 / 8
wBitsPerSample As Integer '每个采样所占亩穗的位数，即采样大小。
'采样大小有 8 位和 16 位两种。
End Type
Private Type WaveHead
strRiff As String * 4 ' 00H 4 char "RIFF"标志
lngFileLen As Long ' 04H 4 long int 文件长度
strWave As String * 4 ' 08H 4 char "WAVE"标志亏耐猜
strFmt As String * 4 ' 0CH 4 char "fmt"标志
lngTmp As Long ' 10H 4 过渡字节（不定）
intFormat As Integer ' 14H 2 int 格式类别（10H为PCM形式的声音数据)
intChan As Integer ' 16H 2 int 通道数，单声道为1，双声道为2
intFreq As Long ' 18H 2 int 采样率（每秒样本数），表示每个通道的播放速度，
lngSendSpeed As Long ' 1CH 4 long int 波形音频数据传送速率，其值为通道数×每秒数据位数×每样本的数据位数／8。播放软件利用此值可以估计缓冲区的大小。
intBlock As Integer ' 20H 2 int 数据块的调整数（按字节算的），其值为通道数×每样本的数据位值／8。播放软件需要一次处理多个该值大小的字节数据，以便将其值用于缓冲区的调整。
intBit As Integer ' 22H 2 每样本的数据位数，表示每个声道中各个样本的数据位数。如果有多个声道，对每个声道而言，样本大小都一样。
strData As String * 4 ' 24H 4 char 数据标记符＂data＂
lngDataLenth As Long ' 28H 4 long int 语音数据的长度
End Type
Public Declare Function sndPlaySound Lib "winmm" Alias "sndPlaySoundA" (ByVal lpszSoundName As String, ByVal uFlags As Long) As Long
' flag uitzetten
Public Const SND_SYNC = H0
Public Const SND_ASYNC = H1
Public Const SND_NODEFAULT = H2
Public Const SND_MEMORY = H4
Public Const SND_LOOP = H8
Public Const SND_NOSTOP = H10
Private Declare Function PlaySound Lib "winmm.dll" Alias "PlaySoundA" (ByVal lpszName As String, ByVal hModule As Long, ByVal dwFlags As Long) As Long
Public Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long
Public Declare Function mciExecute Lib "winmm.dll" (ByVal lpstrCommand As String) As Long
'Declare Function PlaySound Lib "winmm.dll" Alias "PlaySoundA" (ByVal lpszName As String, ByVal hModule As Long, ByVal dwFlags As Long) As Long
Public Declare Sub RtlMoveMemory Lib "kernel32" (lpvDest As Any, lpvSource As Any, ByVal cbCopy As Long)
Private Sub Command1_Click()
'为了防止随意选取的两个wav文件格式不同，我干脆就将同一个文件重复两次
LinkWav "C:\WINNT\Media\ringout.wav", "C:\WINNT\Media\ringout.wav", "f:\temp.wav"
End Sub
Private Function getWavHead(strFileName As String) As WaveHead
'获取文件头
Dim iFreeFile
iFreeFile = FreeFile()
On Error GoTo ErrHandle
Dim MyHead As WaveHead
Open strFileName For Binary As #iFreeFile
Get #iFreeFile, , MyHead
Close #iFreeFile
getWavHead = MyHead
ErrHandle:
End Function
Public Function LinkWav(strFileName1 As String, strFileName2 As String, strOutFile As String) As Boolean
Dim headFirst As WaveHead
Dim headNext As WaveHead
Dim headNew As WaveHead '新文件的头
Dim Data1() As Byte
Dim Data2() As Byte
Dim i As Long
LinkWav = False
'获取头
headFirst = getWavHead(strFileName1)
headNext = getWavHead(strFileName2)
'文件头比较
DoEvents '这里应该对两个头作比较，如果采样率，声道数等等不一致的话不能进行连接
'偶就偷懒不做这个校验啦，如果要实际应用千万要完成这一块的代码
'创建新头
headNew = headFirst '先拷贝一个头过来
headNew.lngFileLen = headFirst.lngDataLenth + headNext.lngDataLenth + 37
'文件长度等于两个文件的数据长度相加再加上头的长度，为什么是37呢？我也不明白！头的总长度是44，去掉4个字节的riff标志和4个字节的文件长度也应该是36哇。可是你打开一个wav文件把文件长度字段减去数据长度字段，就是活见鬼的37。我想了好久总想不通最后妥协直接写了个37在这里！:(
headNew.lngDataLenth = headFirst.lngDataLenth + headNext.lngDataLenth
'数据段的长度就是两个文件的数据相加啦
'下面是文件操作，为了加快编码速度减少脑细胞损伤，下面的代码效率很低，大家自己优化啦，如果直接用下面的代码劝大家不要读太大的文件，很够呛哦~~
'把两个文件的数据读出来！！
ReDim Data1(headFirst.lngDataLenth - 1)
'Open strFileName1 For Random As #1 Len = 1
Open strFileName1 For Binary As #1
For i = 0 To headFirst.lngDataLenth - 1
Get #1, 45 + i, Data1(i)
Next
Close #1
ReDim Data2(headNext.lngDataLenth - 1)
'Open strFileName2 For Random As #1 Len = 1
Open strFileName2 For Binary As #1 'Len = 1
For i = 0 To headNext.lngDataLenth - 1
Get #1, 45 + i, Data2(i)
Next
Close #1
'开始写数据啦
'Open strOutFile For Random As #1 Len = 1
Open strOutFile For Binary As #1
Put #1, , headNew ' 将头写入文件中。
'Close #1
'Open strOutFile For Random As #1 Len = 1
For i = 0 To UBound(Data1)
Put #1, 45 + i, Data1(i) ' 将第一个记录写入文件中。
Next
For i = 0 To UBound(Data2)
Put #1, , Data2(i) ' 将第一个记录写入文件中。
Next
Close #1 ' 关闭文件。
End Function
'合并两个WAV声音文件
Public Function WavMerge(Wave1() As Byte, Wave2() As Byte) As Variant
Dim xx As Long
Dim Y$
'1，确定data chunk的起始点(不同的WAV文件可能会不尽相同)
Do While Y$ "data"
Y$ = Chr(Wave1(xx)) Chr(Wave1(xx + 1)) Chr(Wave1(xx + 2)) Chr(Wave1(xx + 3))
xx = xx + 1
If xx 1000 Then
MsgBox "未知格式"
Exit Function
End If
Loop
Datapos1 = (xx - 1) + 8
xx = 0
Y$ = ""
Do While Y$ "data"
Y$ = Chr(Wave2(xx)) Chr(Wave2(xx + 1)) Chr(Wave2(xx + 2)) Chr(Wave2(xx + 3))
xx = xx + 1
If xx 1000 Then
MsgBox "未知格式"
Exit Function
End If
Loop
Datapos2 = (xx - 1) + 8
xx = 0
Y$ = ""
'2,确定第一个参数Wave1声音中是否包含可选的fact chunk
factpos = 0
Do While Y$ "fact"
Y$ = Chr(Wave1(xx)) Chr(Wave1(xx + 1)) Chr(Wave1(xx + 2)) Chr(Wave1(xx + 3))
xx = xx + 1
If xx 1000 Then
xx = 0
Exit Do
End If
Loop
factpos = xx - 1
If factpos = -1 Then factpos = 36
DataLenOut = UBound(Wave1) + 1 - Datapos1 + UBound(Wave2) + 1 - Datapos2
ReDim WAVBuffer(factpos + 19 + DataLenOut)
'3,写入合并后的RIFF('wave'...fmt...[fact]...头信息
RtlMoveMemory WAVBuffer(0), Wave1(0), factpos '注：采样速率，平均数据速率，采样大小，声道以Wave1参数为准
WAVBuffer(factpos) = Asc("f"): WAVBuffer(factpos + 1) = Asc("a")
WAVBuffer(factpos + 2) = Asc("c"): WAVBuffer(factpos + 3) = Asc("t")
ChunkLen = 4
RtlMoveMemory WAVBuffer(factpos + 4), ChunkLen, 4
RtlMoveMemory WAVBuffer(factpos + 8), DataLenOut, 4
WAVBuffer(factpos + 12) = Asc("d"): WAVBuffer(factpos + 13) = Asc("a")
WAVBuffer(factpos + 14) = Asc("t"): WAVBuffer(factpos + 15) = Asc("a")
RtlMoveMemory WAVBuffer(factpos + 16), DataLenOut, 4
'4,写入合并后的data chunk（即所有的samples,先Wave1,后Wave2)
RtlMoveMemory WAVBuffer(factpos + 20), Wave1(Datapos1), UBound(Wave1) - Datapos1 + 1
RtlMoveMemory WAVBuffer(factpos + 20 + UBound(Wave1) - Datapos1 + 1), Wave2(Datapos2), UBound(Wave2) - Datapos2 + 1
'5,更正RIFF头信息
ChunkLen = UBound(WAVBuffer) - 7
RtlMoveMemory WAVBuffer(4), ChunkLen, 4
'6,结束
WavMerge = WAVBuffer
End Function
'合并多个文件
Public Function f_LinkWav(cFile As Collection, sOutFile As String) As Boolean
Dim headFirst As WaveHead
Dim headNext As WaveHead
Dim headNew As WaveHead '新文件的头
Dim byteData() As Byte
Dim iFreeFile As Integer
Dim i As Long
Dim j As Long
Dim iA
Dim lData As Long
f_LinkWav = False
iFreeFile = FreeFile()
'获取头
headFirst = getWavHead(cFile(1))
lData = headFirst.lngDataLenth - 1
ReDim Preserve byteData(lData)
'Open strFileName1 For Random As #1 Len = 1
Open cFile(1) For Binary As #iFreeFile
For i = 0 To lData
Get #iFreeFile, 45 + i, byteData(i)
Next
Close #iFreeFile
headNew = headFirst
headNew.lngFileLen = headFirst.lngDataLenth
headNew.lngDataLenth = headFirst.lngDataLenth
For iA = 2 To cFile.Count
headNext = getWavHead(cFile(iA))
headNew.lngFileLen = headNew.lngFileLen + headNext.lngDataLenth + 37
headNew.lngDataLenth = headNew.lngDataLenth + headNext.lngDataLenth
ReDim Preserve byteData(lData + headNext.lngDataLenth)
Open cFile(iA) For Binary As #iFreeFile 'Len = 1
For i = 1 To headNext.lngDataLenth
Get #iFreeFile, 44 + i, byteData(lData + i)
Next
Close #iFreeFile
lData = lData + headNext.lngDataLenth
Next
'开始写数据啦
'Open strOutFile For Random As #1 Len = 1
If Dir(sOutFile, vbNormal) "" Then Kill sOutFile
Open sOutFile For Random As #iFreeFile
Put #iFreeFile, , headNew ' 将头写入文件中。
Close #iFreeFile
j = UBound(byteData) + 1
'For iA = 2 To giCalltimes
' ReDim Preserve byteData(UBound(byteData) + j)
' For i = 0 To j - 1
' byteData(j + i) = byteData(i) ' 将第一个记录写入文件中。
' Next
'Next iA
Open sOutFile For Random As #iFreeFile Len = 1
For i = 0 To UBound(byteData)
Put #iFreeFile, 45 + i, byteData(i) ' 将第一个记录写入文件中。
Next
' j = UBound(byteData)
'For iA = 2 To giCalltimes
' For i = 0 To UBound(byteData)
' Put #iFreeFile, 45 + i + j + 1, byteData(i) ' 将第一个记录写入文件中。
' Next
' j = j + UBound(byteData)
'Next
Close #iFreeFile ' 关闭文件。
f_LinkWav = True
End Function
Public Function f_MciChkEnd()
Dim MCIStatus As String * 255
Dim lA
f_MciChkEnd = False
lA = mciSendString("status wav mode", MCIStatus, Len(MCIStatus), 0)
If UCase(Left$(MCIStatus, 7)) = "STOPPED" Or Left$(MCIStatus, 2) = "结束" Then f_MciChkEnd = True
End Function
Public Function SendComReturnString(com As String) As String
Dim FeedBack As Long, ReturnString As String * 255
ReturnString = String(255, Chr(0))
FeedBack = mciSendString(com, ReturnString, 255, 0)
If FeedBack Then
Dim s As String * 255
'mciGetErrorString FeedBack, s, 255
SendComReturnString = vbNullString
Else
SendComReturnString = Left(ReturnString, InStr(1, ReturnString, Chr(0)) - 1)
End If
End Function
一个提醒程序 最典型的就是闹钟程序 网上有不少个性化的提醒程序下载 但是大部分都是以时间为主的闹钟提醒 我们也可以用来打造一个适合自己的提醒程序 比如监控一个某个应用程序的变化然后发出声音提醒自己等等
一个提醒程序 最重要能在符合提醒条件的时候发出声音来提醒使用者 在这里 我们就对具体的提醒条件啰嗦了 只针对如何实现提醒声音的播放进行说明
在的 net组件中 并没有提供播放声音文件的组件 但是我们可以通过使用Com组件来播放声音文件 但是 要注意的事 我们只需要发出提示的声音而已 并不需要像播放器那样播放不同格式的声音文件和繁多的列表 所以我们可以通过API函数来循环播放单个的声音文件
在WindowsAPI函数的有一个PlaySound函数 它用于播放WAV格式的声音文件 我们可以用它来反复播放一个指定的WAV文件来实现提醒功能
首先在中引入API声明
Public Declare Function PlaySound Lib winmm dll （ByVal lpszSoundName As String ByVal hModule As Integer ByVal dwFlags As Integer） As Integer
然后定义几个我们程序中必须用到的dwFlags参数常量
同步调用PlaySound中指定的文件 播放完WAV文件后才返回结果
Const SND_SYNC As Integer = H
异步调用PlaySound中指定的文件 不必等到播放完WAV文件后就直接返回结果 在这里我们可以调用异步方法来播放文件
Const SND_ASYNC As Integer = H
反复播放指定的WAV文件誉誉
Const SND_LOOP As Integer = H
在调用的时候hModule参数必须为耐虚拿
需要停止的时候通过调用PlaySound（vbNullString ）来实现现在我们在窗体上放置两个按钮 一个用于开始播放 一个用于停止播放 然后再放置一个TextBox控件 用于指定WAV文件的路径 界面如下图所示
图一 示例界面
完整昌搭代码如下
Public Declare Function PlaySound Lib winmm dll （ByVal lpszSoundName As String ByVal hModule As Integer ByVal dwFlags As Integer） As Integer
Const SND_FILENAME As Integer = H
Const SND_ALIAS As Integer = H
Const SND_SYNC As Integer = H
Const SND_ASYNC As Integer = H
Const SND_LOOP As Integer = H
Private Sub Button _Click（ByVal sender As System Object ByVal e As System EventArgs） Handles Button Click
PlaySound（TextBox Text SND_LOOP Or SND_ASYNC）
End Sub
Private Sub Button _Click（ByVal sender As System Object ByVal e As System EventArgs） Handles Button Click
PlaySound（vbNullString ）
End Sub
运行 在TextBox 中输入有效的WAV文件的路径 然后单击开始 就可以循环播放声音了 单击停止按钮就可以停止播放
lishixinzhi/Article/program/net/201311/12453
首先添加一个系统的语音COM组件判禅斗的引用microsoft speech object library然后在程序中声明一个语音类dim RC As SpeechLib.SpSharedRecoContext这个类有一些事件,如果你要处理它的一些事件,可以用withevent来声明然后在窗体LOAD事件或你需要的地方先创建一个实例RC = New SpeechLib.SpSharedRecoContext当一个RC被实例化后,系统就会运行语音识别程序.前提是你的系统已经正确安装这个功能.一般默认就已经安装好的.其次提醒袭碰一下,WIN7的语音识别比XP的好N倍.从阅读到侦听都好很多.然后就可以在你需要阅读的地方使用RC.Voice.Speak("hello 我", 11)11那里是一些枚举,用来标识系统用前台还是后台或其他方式来阅读文字,简单的来说就是阅读的时掘磨候不会卡住你的程序.你可以选其他的枚举来试试作用.以上为阅读部分.如果需要程序听你说话,则需要声明一个侦听类dim RG As SpeechLib.ISpeechRecoGrammar在初始化时将之与上面的RC建立关系,此时则必须要用withevent来声明上面的RC,因为涉及电脑听到你的语音后,会触发一个事件,并将听到的内容传递到该事件.其次,要让系统听到的解析为命令,就必须准备一个XML结构的文件来保存那些固定的命令.如果电脑在XML文件中找不到那些固定命令或同时不属于系统命令,电脑将会将其解释为听写.RG = RC.CreateGrammar '(0)
RG.CmdLoadFromFile("听到.xml", SpeechLib.SpeechLoadOption.SLODynamic)
RG.CmdSetRuleIdState(0, SpeechLib.SpeechRuleState.SGDSActive)然后写一个过程来处理听到的事件Private Sub 听到命令(ByVal StreamNumber As Integer, ByVal StreamPosition As Object, ByVal RecognitionType As SpeechLib.SpeechRecognitionType, ByVal 话语 As SpeechLib.ISpeechRecoResult) Handles RC.Recognition RC.Voice.Speak("我听到了" 话语.PhraseInfo.GetText, 11)End Sub以上为侦听部分.下面列一个XML的例文?xml version="1.0" encoding="gb2312"?
GRAMMAR LANGID="804"
RULE NAME="命令" TOPLEVEL="ACTIVE"
L
P打开播放器
P上我的QQ
P关闭你自己 /L
/RULE
/GRAMMAR要让系统正确地侦听到你说的话,前提你必须运行语音识别程序并让其激活到"正在聆听"状态.并且你必须有一个能正常使用的话筒而且保证话筒已经打开.(废话-_-|||)以上就是用VB.NET语音识别的最基本的一些操作.希望对你有帮助.更深入的内容有兴趣的话可以和我一起研究.
