/// <summary>
/// 解析音频文件，获取时间戳，截取音频，语音转文字
/// </summary>
/// <param name="sound_path"></param>
/// <param name="word_path"></param>
/// <param name="language"></param>
/// <param name="splitTime"></param>
public void GetTimeSpan(string sound_path, string word_path, string language, double splitTime = 1.5)
{
//通过NAudio读取音频文件流
AudioFileReader inputStream = null;
string sound_path_mp3 = "";
try
{
if (sound_path.ToLower().EndsWith(".mp3"))
{
sound_path_mp3 = sound_path;
//通过NAudio将文件转换为WAV格式，返回新的文件路径
sound_path = NAudioHelper.GetWavPath(sound_path);
}
inputStream = new AudioFileReader(sound_path);
//WAV文件读取
WAVReader reader = new WAVReader();
//reader.GetTimeSpan(sound_path, out voicePoint, out voiceMilliSecond, splitTime);
reader.GetTimeSpan(sound_path, out voicePoint, out musicContents, splitTime);
//voicePoint是为了截取小音频
//voicePoint是双数的原因是有开始时间就有一个结束时间
//最后一次的时间要加上（结束时，没有停顿时间）
if (voicePoint.Count % 2 != 0)
{
voicePoint.Add(inputStream.TotalTime);
}
LogHelper.Info("时间戳获取：成功");
//string totalTime=FfmpegHelper.getMediaDuration(sound_path);
int _name = 1;//命名
//一个时间点对应一段音频对应一段文字
LogHelper.Info("语音转文字：开始");
for (int i = 0; i < voicePoint.Count; i += 2)
{
var para = new BaiduRead()
{
voice_time = musicContents.Select(o => o.voiceMilliSecond).ToList()[i / 2],
start = voicePoint[i],
end = voicePoint[i + 1],
sound_path = sound_path,
file_name = _name,
language = language,
splitTime = splitTime
};
Task task_max = Task.Factory.StartNew(() => {
GetBaiduSpeech(para);
});
Task.WaitAll(task_max);
//GetBaiduSpeech(para);
++_name;
}
//word原文
originalText = NPOIHelper.ExcuteWordText(word_path);
//word原文的集合
results = GetTextContrast(musicContents, originalText, language);
}
catch (Exception ex)
{
LogHelper.Error(ex.Message);
}
#region 除文件
finally
{
inputStream.Close();
inputStream.Dispose();
isFinish = true;
//删除MP3文件
if (Util.isNotNull(sound_path_mp3) && File.Exists(sound_path_mp3))
{
File.Delete(sound_path_mp3);
string mp3_folder = Path.GetDirectoryName(sound_path_mp3);
if (Directory.Exists(mp3_folder) && Directory.GetFiles(mp3_folder).Length == 0)
{
Directory.Delete(mp3_folder);
}
}
//删除word文件
if (File.Exists(word_path))
{
File.Delete(word_path);
//删除word文件目录
string word_folder = Path.GetDirectoryName(word_path);
if (Directory.Exists(word_folder) && Directory.GetFiles(word_folder).Length == 0)
{
Directory.Delete(word_folder);
}
}
//删除文件夹，删除原音频文件
if (File.Exists(sound_path))
{
File.Delete(sound_path);
//删除原音频目录
string sound_folder = Path.GetDirectoryName(sound_path);
if (Directory.Exists(sound_folder) && Directory.GetFiles(sound_folder).Length == 0)
{
Directory.Delete(sound_folder);
}
}
}
#endregion
}
/// <summary>
/// 解析音频文件，获取时间戳，截取音频，语音转文字
/// </summary>
/// <param name="sound_path"></param>
/// <param name="word_path"></param>
/// <param name="language"></param>
/// <param name="splitTime"></param>
public void GetTimeSpan(string sound_path, string word_path, string language, double splitTime = 1.5)
{
//通过NAudio读取音频文件流
AudioFileReader inputStream = null;
string sound_path_mp3 = "";
try
{
if (sound_path.ToLower().EndsWith(".mp3"))
{
sound_path_mp3 = sound_path;
//通过NAudio将文件转换为WAV格式，返回新的文件路径
sound_path = NAudioHelper.GetWavPath(sound_path);
}
inputStream = new AudioFileReader(sound_path);
//WAV文件读取
WAVReader reader = new WAVReader();
reader.GetTimeSpan(sound_path, out voicePoint, out voiceMilliSecond, splitTime);
//voicePoint是为了截取小音频
//voicePoint是双数的原因是有开始时间就有一个结束时间
//最后一次的时间要加上（结束时，没有停顿时间）
if (voicePoint.Count % 2 != 0)
{
voicePoint.Add(inputStream.TotalTime);
}
LogHelper.Info("时间戳获取：成功");
//string totalTime=FfmpegHelper.getMediaDuration(sound_path);
int _name = 1;//命名
//一个时间点对应一段音频对应一段文字
LogHelper.Info("语音转文字：开始");
for (int i = 0; i < voicePoint.Count; i += 2)
{
GetBaiduSpeech(voicePoint[i], voicePoint[i + 1], sound_path, _name, language, splitTime);
++_name;
}
//word原文
if (Path.GetExtension(word_path).Contains("doc") || Path.GetExtension(word_path).Contains("docx"))
{
originalText = NPOIHelper.ExcuteWordText(word_path);
//word原文的集合
results = GetTextContrast(voiceFiles.ToArray(), voiceMilliSecond.ToArray(), baidu_text.ToArray(), originalText, language);
}
else if (Path.GetExtension(word_path).Contains("txt") || Path.GetExtension(word_path).Contains("lrc"))
{
string _originalText = Util.ReadTxt(word_path);
originalText = string.Join("", _originalText.Split('|'));
//word原文的集合
results = GetTextContrast(voiceFiles.ToArray(), voiceMilliSecond.ToArray(), baidu_text.ToArray(), _originalText, language);
}
}
catch (Exception ex)
{
LogHelper.Error(ex.Message);
}
finally
{
inputStream.Close();
inputStream.Dispose();
isFinish = true;
////删除MP3文件
//if (Util.isNotNull(sound_path_mp3) && File.Exists(sound_path_mp3))
//{
// File.Delete(sound_path_mp3);
// string mp3_folder = Path.GetDirectoryName(sound_path_mp3);
// if (Directory.Exists(mp3_folder) && Directory.GetFiles(mp3_folder).Length == 0)
// {
// Directory.Delete(mp3_folder);
// }
//}
////删除word文件
//if (File.Exists(word_path))
//{
// File.Delete(word_path);
// //删除word文件目录
// string word_folder = Path.GetDirectoryName(word_path);
// if (Directory.Exists(word_folder) && Directory.GetFiles(word_folder).Length == 0)
// {
// Directory.Delete(word_folder);
// }
//}
////删除文件夹，删除原音频文件
//if (File.Exists(sound_path))
//{
// File.Delete(sound_path);
// //删除原音频目录
// string sound_folder = Path.GetDirectoryName(sound_path);
// if (Directory.Exists(sound_folder) && Directory.GetFiles(sound_folder).Length == 0)
// {
// Directory.Delete(sound_folder);
// }
//}
}
}
/// <summary>
/// 解析音频文件，获取时间戳，截取音频，语音转文字
/// </summary>
/// <param name="sound_path"></param>
/// <param name="word_path"></param>
/// <param name="language"></param>
/// <param name="splitTime"></param>
public void GetTimeSpan(string sound_path, string word_path, string language, double splitTime = 1.5)
{
//通过NAudio读取音频文件流
string sound_path_mp3 = "";
try
{
if (sound_path.ToLower().EndsWith(".mp3") || sound_path.ToLower().EndsWith(".wav"))
{
sound_path_mp3 = sound_path;
//使用ffmpeg将MP3转换为 单声道 16000Hz 16bit的wav
string folder = Path.GetDirectoryName(sound_path);
string wav_sound_path = folder + "/" + "_" + Path.GetFileNameWithoutExtension(sound_path) + ".wav";
if (FfmpegHelper.ChangeFileType(sound_path, wav_sound_path))
{
sound_path = wav_sound_path;
}
else
{
LogHelper.Error("使用ffmpeg，MP3转wav文件失败！");
return;
}
}
string totalTimeStr = FfmpegHelper.getMediaDuration(sound_path);
TimeSpan totalTime = TimeSpan.Parse(totalTimeStr);
//WAV文件读取
WAVReader reader = new WAVReader();
reader.GetTimeSpan(sound_path, out voicePoint, out voiceMilliSecond, splitTime);
int channel = reader.channel;
int rate = reader.rate;
int bit = reader.bit;
//voicePoint是为了截取小音频
//voicePoint是双数的原因是有开始时间就有一个结束时间
//最后一次的时间要加上（结束时，没有停顿时间）
if (voicePoint.Count % 2 != 0)
{
voicePoint.Add(totalTime);
}
int _name = 1;//命名
//一个时间点对应一段音频对应一段文字
for (int i = 0; i < voicePoint.Count; i += 2)
{
GetBaiduSpeech(voicePoint[i], voicePoint[i + 1], sound_path, _name, language, splitTime, totalTime, channel, rate, bit);
++_name;
}
//word原文
originalText = NPOIHelper.ExcuteWordText(word_path);
//word原文的集合
results = GetTextContrast(voiceFiles.ToArray(), voiceMilliSecond.ToArray(), baidu_text.ToArray(), originalText, language);
}
catch (Exception ex)
{
LogHelper.Error(ex.Message);
}
finally
{
isFinish = true;
//删除MP3文件
if (Util.isNotNull(sound_path_mp3) && File.Exists(sound_path_mp3))
{
File.Delete(sound_path_mp3);
string mp3_folder = Path.GetDirectoryName(sound_path_mp3);
if (Directory.Exists(mp3_folder) && Directory.GetFiles(mp3_folder).Length == 0)
{
Directory.Delete(mp3_folder);
}
}
//删除word文件
if (File.Exists(word_path))
{
File.Delete(word_path);
//删除word文件目录
string word_folder = Path.GetDirectoryName(word_path);
if (Directory.Exists(word_folder) && Directory.GetFiles(word_folder).Length == 0)
{
Directory.Delete(word_folder);
}
}
//删除文件夹，删除原音频文件
if (File.Exists(sound_path))
{
File.Delete(sound_path);
//删除原音频目录
string sound_folder = Path.GetDirectoryName(sound_path);
if (Directory.Exists(sound_folder) && Directory.GetFiles(sound_folder).Length == 0)
{
Directory.Delete(sound_folder);
}
}
}
}