private void SpeakButton_Click(object sender, System.EventArgs e)
{
int index;
// Try to use the user selected device.
if (OutputCombo.SelectedIndex != -1)
{
try
{
Voice.AllowAudioOutputFormatChangesOnNextSet = true;
Voice.AudioOutput = Voice.GetAudioOutputs("", "").Item(OutputCombo.SelectedIndex);
}
catch (Exception)
{
AddEventMessage("ERROR: Error while attempting to set output device.");
}
}
// Update the combobox to reflect the device SAPI is
// actually using.
index = OutputCombo.FindStringExact(Voice.AudioOutput.GetDescription(0));
if (index != -1)
{
OutputCombo.SelectedIndex = index;
}
Type formatType = typeof(SpeechAudioFormatType);
// Try to use the user selected format.
if (FormatCombo.SelectedIndex != -1)
{
try
{
SpeechAudioFormatType newFormat = (SpeechAudioFormatType)
Enum.Parse(formatType, (string)FormatCombo.SelectedItem);
Voice.AllowAudioOutputFormatChangesOnNextSet = false;
Voice.AudioOutputStream.Format.Type = newFormat;
Voice.AudioOutputStream = Voice.AudioOutputStream;
}
catch (Exception)
{
AddEventMessage("ERROR: Error while attempting to set audio format.");
}
}
// Update the combobox to reflect the format
// actually being used.
string formatName = Enum.GetName(formatType, Voice.AudioOutputStream.Format.Type);
index = FormatCombo.FindStringExact(formatName);
if (index != -1)
{
FormatCombo.SelectedIndex = index;
}
this.Speak();
}
/// <summary>
/// Convert xml to WAV bytes. WAV won't have the header, so you have to add it separatelly.
/// </summary>
byte[] ConvertSapiXmlToWav(string xml, int sampleRate, int bitsPerSample, int channelCount)
{
SpeechAudioFormatType t = SpeechAudioFormatType.SAFT48kHz16BitMono;
switch (channelCount)
{
case 1: // Mono
switch (sampleRate)
{
case 11025: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT11kHz8BitMono : SpeechAudioFormatType.SAFT11kHz16BitMono; break;
case 22050: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT22kHz8BitMono : SpeechAudioFormatType.SAFT22kHz16BitMono; break;
case 44100: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT44kHz8BitMono : SpeechAudioFormatType.SAFT44kHz16BitMono; break;
case 48000: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT48kHz8BitMono : SpeechAudioFormatType.SAFT48kHz16BitMono; break;
}
break;
case 2: // Stereo
switch (sampleRate)
{
case 11025: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT11kHz8BitStereo : SpeechAudioFormatType.SAFT11kHz16BitStereo; break;
case 22050: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT22kHz8BitStereo : SpeechAudioFormatType.SAFT22kHz16BitStereo; break;
case 44100: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT44kHz8BitStereo : SpeechAudioFormatType.SAFT44kHz16BitStereo; break;
case 48000: t = bitsPerSample == 8 ? SpeechAudioFormatType.SAFT48kHz8BitStereo : SpeechAudioFormatType.SAFT48kHz16BitStereo; break;
}
break;
}
byte[] bytes;
var voice = new SpeechLib.SpVoice();
// Write into memory.
var stream = new SpeechLib.SpMemoryStream();
stream.Format.Type = t;
voice.AudioOutputStream = stream;
try
{
voice.Speak(xml, SpeechVoiceSpeakFlags.SVSFPurgeBeforeSpeak);
}
catch (Exception ex)
{
ex.Data.Add("Voice", "voiceName");
LastException = ex;
return(null);
}
var spStream = (SpMemoryStream)voice.AudioOutputStream;
spStream.Seek(0, SpeechStreamSeekPositionType.SSSPTRelativeToStart);
bytes = (byte[])(object)spStream.GetData();
return(bytes);
}
public bool SaveAsWAV(string path, string str, SpeechAudioFormatType SpAudioType)
{
SpeechStreamFileMode SpFileMode = SpeechStreamFileMode.SSFMCreateForWrite;
SpFileStream SpFileStream = new SpFileStream();
SpeechVoiceSpeakFlags SpFlags = SpeechVoiceSpeakFlags.SVSFlagsAsync;
SpAudioFormat SpAudio = new SpAudioFormat();
SpAudio.Type = SpAudioType;
SpFileStream.Format = SpAudio;
SpFileStream.Open(path, SpFileMode, false);
mVoice.AudioOutputStream = SpFileStream;
mVoice.Speak(str, SpFlags);
mVoice.WaitUntilDone(Timeout.Infinite);
SpFileStream.Close();
return File.Exists(path);
}
private void SaveWavButton_Click(object sender, System.EventArgs e)
{
SaveFileDialog saveFile = new SaveFileDialog();
saveFile.Filter = "All Files (*.*)|*.*|Wave Files (*.wav)|*.wav";
saveFile.FilterIndex = 2;
saveFile.RestoreDirectory = true;
if (saveFile.ShowDialog() == DialogResult.OK)
{
AddEventMessage("INFO: Saving to a wave file...");
// We need a file stream.
SpFileStreamClass spFile = new SpFileStreamClass();
// Try and use the user specified format for the
// wave file.
if (FormatCombo.SelectedIndex != -1)
{
try
{
SpeechAudioFormatType newFormat = (SpeechAudioFormatType)
Enum.Parse(typeof(SpeechAudioFormatType), (string)FormatCombo.SelectedItem);
spFile.Format.Type = newFormat;
}
catch (Exception)
{
AddEventMessage("ERROR: Error while attempting to set audio format.");
}
}
spFile.Open(saveFile.FileName, SpeechStreamFileMode.SSFMCreateForWrite, false);
// We don't want SAPI to change the format, because
// we might have done so already.
Voice.AllowAudioOutputFormatChangesOnNextSet = false;
Voice.AudioOutputStream = spFile;
this.Speak();
Voice.WaitUntilDone(-1);
spFile.Close();
AddEventMessage("INFO: Wave file written successfully.");
}
}
/*
SAFT8kHz8BitMono = 4
SAFT8kHz8BitStereo = 5
SAFT8kHz16BitMono = 6
SAFT8kHz16BitStereo = 7
SAFT11kHz8BitMono = 8
SAFT11kHz8BitStereo = 9
SAFT11kHz16BitMono = 10
SAFT11kHz16BitStereo = 11
SAFT12kHz8BitMono = 12
SAFT12kHz8BitStereo = 13
SAFT12kHz16BitMono = 14
SAFT12kHz16BitStereo = 15
SAFT16kHz8BitMono = 16
SAFT16kHz8BitStereo = 17
SAFT16kHz16BitMono = 18
SAFT16kHz16BitStereo = 19
SAFT22kHz8BitMono = 20
SAFT22kHz8BitStereo = 21
SAFT22kHz16BitMono = 22
SAFT22kHz16BitStereo = 23
SAFT24kHz8BitMono = 24
SAFT24kHz8BitStereo = 25
SAFT24kHz16BitMono = 26
SAFT24kHz16BitStereo = 27
SAFT32kHz8BitMono = 28
SAFT32kHz8BitStereo = 29
SAFT32kHz16BitMono = 30
SAFT32kHz16BitStereo = 31
SAFT44kHz8BitMono = 32
SAFT44kHz8BitStereo = 33
SAFT44kHz16BitMono = 34
SAFT44kHz16BitStereo = 35
SAFT48kHz8BitMono = 36
SAFT48kHz8BitStereo = 37
SAFT48kHz16BitMono = 38
SAFT48kHz16BitStereo = 39
*/
public void SetWaveFormat(WaveFormat wf)
{
waveType = Audio.ConvertWaveFormatToSpeechFormat(wf);
}
public int put_Type(SpeechAudioFormatType AudioFormat)
{
return(((delegate * unmanaged <ISpeechAudioFormat *, SpeechAudioFormatType, int>)(lpVtbl[8]))((ISpeechAudioFormat *)Unsafe.AsPointer(ref this), AudioFormat));
}
public void SetWaveFormat(WaveFormat wf)
{
waveType = Audio.ConvertWaveFormatToSpeechFormat(wf);
}
