我已经构建了一个控制台应用程序，可以读取两种语言（英语和俄语）的文本文件，因此我可以上自己的音频课。
一切正常，除了现在我已经对其进行了修改以使用Naudio将Wav音频流转换为MP3之外，最后我丢失了大约20％的录音。
我已经运行了代码以在每次发声后跟踪内存流的容量，而且可以肯定的是，它最终会丢失数据。
我怀疑这与Wav流中创建的RIFF标头有关。
如果可以解决的话，我会发布代码！
using System;
using System.Text;
using System.Speech.Synthesis;
using System.Speech.AudioFormat;
using System.IO;
using NAudio.Wave;
using NAudio.Lame;
using NAudio;
using System.Threading.Tasks;
namespace Immercia
{
class Program
{
public static void ConvertWavStreamToMp3File(ref MemoryStream ms, string savetofilename)
{
//rewind to beginning of stream
ms.Seek(0, SeekOrigin.Begin);
using (var rdr = new WaveFileReader(ms))
using (var wtr = new LameMP3FileWriter(savetofilename, rdr.WaveFormat, 128/* LAMEPreset.VBR_90*/))
{
rdr.CopyTo(wtr);
}
}
public static void Main(string[] args)
{
Console.Title = "Immercia";
MemoryStream ms = new MemoryStream();
//Create two instances of speech Synthesizer, set voices, and volume -rate is set in the function below
SpeechSynthesizer synthE = new SpeechSynthesizer();
SpeechSynthesizer synthR = new SpeechSynthesizer();
synthE.SelectVoice("Microsoft Anna");
synthR.SelectVoice("IVONA 2 Tatyana OEM");
//new SpeechAudioFormatInfo(22000, AudioBitsPerSample.Sixteen, AudioChannel.Mono);
synthE.Volume = 100;
synthR.Volume = 85;
synthE.Rate = -4;
synthE.SetOutputToWaveStream(ms);
synthR.SetOutputToWaveStream(ms);
// Set up the input text file to be read, and the output .wav file to be created
Console.WriteLine("Enter exact lesson name to be read (case sensitive), " +
"do not include path or file extention");
string LessonName = Console.ReadLine();
//Console.WriteLine("Enter unique Wav File name to be created (case sensitive), " +
// "do not include path or file extention ");
string WavFileName = LessonName;
//The output mp3 file of the recorded audio
string savetofilename = @"C:\RussianLessons\" + WavFileName + ".mp3";
Console.OutputEncoding = Encoding.UTF8;
/*Source file for text to speech. must be created with an asterix before the english,
and a 4 digit "pause time" entry before the russian in milliseconds i.e."1400"
Creation note: file mus be saved as a txt file in unicode UFT8 or UFT 16 to support cryllic.*/
string[] lesson = File.ReadAllLines(@"C:\RussianLessons\" + LessonName + ".txt");
//this fixes the problem of the MP3 not recording the first word/phrase of the lesson,but doesn't actually get recorded???? weird stuff.
synthR.Speak("Здравствуйте");
try
{
// Loop over strings.
foreach (string word in lesson)
{
//Trim off english indicator asterix and create new string "english" for speaking.
if (word.Contains("*") == true)
{
char trim = '*';
string english = word.Trim(trim);
//write english word to console
Console.WriteLine(english);
//speak english word
synthE.Speak(english);
//Test for debug of end file loss
Console.WriteLine(
"Capacity = {0}, Length = {1}, Position = {2}\n",
ms.Capacity.ToString(),
ms.Length.ToString(),
ms.Position.ToString());
}
if (word.Contains("#") == true)
{
//Trim off pause time instructions to leave crylllic to be written to console
char[] charsToTrim = { '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '#' };
string TrimmedRussian = word.TrimStart(charsToTrim);
//extract pause time entry from the begining of the russian word string
string milli = word.Substring(0, 4);
string pause = string.Concat('"' + milli + "ms\"");
//create SSML string to allow for "pause time" to be read automatically by the speech synthesizer
string russian;
russian = "<speak version=\"1.0\"";
russian += " xmlns=\"http://www.w3.org/2001/10/synthesis \"";
russian += " xml:lang=\"ru-RU\">";
russian += TrimmedRussian;
russian += "<break time= ";
russian += pause;
russian += " />";
russian += "</speak>";
//Write russian word to console
Console.WriteLine(TrimmedRussian);
//speak russian word
synthR.Rate = -6;
synthR.SpeakSsml(russian);
//Test for debug of end file loss
Console.WriteLine(
"Capacity = {0}, Length = {1}, Position = {2}\n",
ms.Capacity.ToString(),
ms.Length.ToString(),
ms.Position.ToString());
synthR.Rate = -4;
// repeat russian word
synthR.SpeakSsml(russian);
//Test for debug of end file loss
Console.WriteLine(
"Capacity = {0}, Length = {1}, Position = {2}\n",
ms.Capacity.ToString(),
ms.Length.ToString(),
ms.Position.ToString());
}
/* if (word.Contains("end of file") == true)
{
synthR.Speak("До свидания, До свидания, До свидания");
}*/
}
//This is not being spoken???? Trying to fix the loss of 20% of the bytes from the end of the MP3.
//Having synthR speak before the foreach fixed the loss of the first 20%....
//synthR.Speak("Здравствуйте");
}
catch (FileNotFoundException)
{
// Write error.
Console.WriteLine("Lesson file not found or spelt incorrectly, " +
"please restart program and check the file name and remember it is case sensitive.");
}
//Test for debug of end file loss
Console.WriteLine(
"Capacity = {0}, Length = {1}, Position = {2}\n",
ms.Capacity.ToString(),
ms.Length.ToString(),
ms.Position.ToString());
ConvertWavStreamToMp3File(ref ms, savetofilename);
ms.Close();
//Stop fucking around with C# and learn Russian, NOW....
Console.WriteLine("\n That is all, press any key to exit");
Console.ReadKey();
}
}
}
答案 0 :(得分：0)
我最终在foreach函数中添加了另一个语音事件。这不是我想要的，但是由于某些原因它起作用了。我确实记得读过有关“ if”语句无法循环的内容，但我仍然怀疑它是Wav流中的RIFF标头。这又是一个谜。 –
if (word.Contains("end") == true)
{
string millis = "1000";
string pauses = string.Concat('"' + millis + "ms\"");
//create SSML string to be read automatically by the
speech synthesizer
string endfile;
endfile = "<speak version=\"1.0\"";
endfile += " xmlns=\"http://www.w3.org/2001/10/synthesis \"";
endfile += " xml:lang=\"ru-RU\">";
endfile += "до свидания";
endfile += "<break time= ";
endfile += pauses;
endfile += " />";
endfile += "</speak>";
//Write russian word to console
Console.WriteLine(endfile);
//speak russian word
synthR.Rate = -6;
synthR.SpeakSsml(endfile);
//Test for debug of end file loss
Console.WriteLine(
"Capacity = {0}, Length = {1}, Position = {2}\n",
ms.Capacity.ToString(),
ms.Length.ToString(),
ms.Position.ToString());
synthR.Rate = -4;
// repeat russian word
synthR.SpeakSsml(endfile);
//Test for debug of end file loss
Console.WriteLine(
"Capacity = {0}, Length = {1}, Position = {2}\n",
ms.Capacity.ToString(),
ms.Length.ToString(),
ms.Position.ToString());
}