【语音合成】语音库的准备工作1――window speech SDK

由于最近想要做一个简单的语音合成模块，初步决定使用STM8作为主控制器，外扩flash用于存放语音库，PWM输出语音。语音库的来源问题成了一大问题。

这里就是为了解决这个问题的，使用speech sdk生成二级汉字的语音文件（WAV）,将其重新编排，烧入FLASH。

下面简单记录下SPEECH SDK的使用方式。

//这是 SPEECH SDK的命名空间
using SpeechLib;
//SPEECH SDK属于COM组件
using System.ComponentModel;
//对于语音的输出部分可控参数
//语音速率 -10 --- 10 有效
Voice.Rate = 0;
//语音输出格式（貌似不可调整,其他模式语音不正常）
Voice.AudioOutputStream.Format.Type = SpeechLib.SpeechAudioFormatType.SAFT16kHz16BitMono;

下面是文字转语音的关键代码：

        private void btn1_Click(object sender, EventArgs e)
        {
                SpeechVoiceSpeakFlags SpFlags = SpeechVoiceSpeakFlags.SVSFlagsAsync;
                SpVoice Voice = new SpVoice();
                Voice.Rate = 0;
                Voice.AudioOutputStream.Format.Type = SpeechLib.SpeechAudioFormatType.SAFT16kHz16BitMono;
                Voice.Voice = Voice.GetVoices().Item(0) ;
        private void btn1_Click(object sender, EventArgs e)
        {
                SpeechVoiceSpeakFlags SpFlags = SpeechVoiceSpeakFlags.SVSFlagsAsync;
                SpVoice Voice = new SpVoice();
                Voice.Rate = 0;
                Voice.AudioOutputStream.Format.Type = SpeechLib.SpeechAudioFormatType.SAFT16kHz16BitMono;
                Voice.Voice = Voice.GetVoices().Item(0) ;
                Voice.Speak(this.textBoxText.Text, SpFlags);
        }
//此处获取需要转换为语音的文本
                Voice.Speak(this.textBoxText.Text, SpFlags);
        }

下面贴出将转换的语音直接输出为wav的关键代码：

private void bt4_Click(object sender, EventArgs e)
{
        int Timeout = 1000;
        SpeechVoiceSpeakFlags SpFlags = SpeechVoiceSpeakFlags.SVSFlagsAsync;
        SpVoice Voice = new SpVoice();
        SaveFileDialog sfd = new SaveFileDialog();
        sfd.Filter = "wav files (*.wav)|*.wav";
        sfd.Title = "Save to a wave file";
        sfd.FilterIndex = 2;
        sfd.RestoreDirectory = true;
        if (sfd.ShowDialog() == DialogResult.OK)
        {
            SpeechStreamFileMode SpFileMode = SpeechStreamFileMode.SSFMCreateForWrite;
            SpFileStream SpFileStream = new SpFileStream();
            SpFileStream.Open(sfd.FileName, SpFileMode, false);
            Voice.AudioOutputStream.Format.Type = SpeechLib.SpeechAudioFormatType.SAFT16kHz16BitMono;
            Voice.AudioOutputStream = SpFileStream;
            Voice.Speak(textBoxText.Text, SpFlags);
            Voice.WaitUntilDone(Timeout);
            SpFileStream.Close();
            MessageBox.Show("生成成功");
        }
    }