Question

我的程序正在.wav录制语音并将其转换为.flac
我会将此.flac文件发送给谷歌，希望我能得到语音文本但是当我的程序尝试将文件发送到谷歌时出现错误，＆＃34;该过程无法访问文件＆＃39; C：\ Users \ Ahmad Mustofa \ Documents \ Visual Studio 2010 \ Projects \ FP \ voice.flac＆＃39;因为它正被另一个进程使用。＆＃34; 。我不知道哪个进程仍在使用该文件。这是我的代码：

        string inputFile = Path.Combine("wav ", input);//the converter
        string outputFile = Path.Combine("flac", Path.ChangeExtension(input, ".flac"));

        if (!File.Exists(inputFile))
            throw new ApplicationException("Input file " + inputFile + " cannot be found!");

        WavReader wav = new WavReader(inputFile);
        FlacWriter flac = new FlacWriter(File.Create(outputFile), wav.BitDepth, wav.Channels, wav.SampleRate);
        // Buffer for 1 second's worth of audio data
        byte[] buffer = new byte[wav.Bitrate / 8];
        int bytesRead;
        do
        {
            bytesRead = wav.InputStream.Read(buffer, 0, buffer.Length);
            flac.Convert(buffer, 0, bytesRead);
        } while (bytesRead > 0);
        flac.Dispose();
        flac = null;
        wav.Dispose();
        wav = null;
        //the sender
            FileStream FS_Audiofile = new FileStream("C:\\Users\\Ahmad Mustofa\\Documents\\Visual Studio 2010\\Projects\\FP\\voice.flac", FileMode.Open, FileAccess.Read);
            BinaryReader BR_Audiofile = new BinaryReader(FS_Audiofile);
            byte[] BA_AudioFile = BR_Audiofile.ReadBytes((Int32)FS_Audiofile.Length);
            FS_Audiofile.Close();
            BR_Audiofile.Close();

            HttpWebRequest _HWR_SpeechToText = null;

            _HWR_SpeechToText = (HttpWebRequest)WebRequest.Create("http://www.google.com/speech-api/v1/recognize?xjerr=1&client=chromium&lang=de-DE&maxresults=1&pfilter=0");

            _HWR_SpeechToText.Method = "POST";
            _HWR_SpeechToText.ContentType = "audio/x-flac; rate=44100";
            _HWR_SpeechToText.ContentLength = BA_AudioFile.Length;
            _HWR_SpeechToText.GetRequestStream().Write(BA_AudioFile, 0, BA_AudioFile.Length);

            HttpWebResponse HWR_Response = (HttpWebResponse)_HWR_SpeechToText.GetResponse();
            if (HWR_Response.StatusCode == HttpStatusCode.OK)
            {
                StreamReader SR_Response = new StreamReader(HWR_Response.GetResponseStream());
            }

Answer 1

您确定FlacWriter会自动处理Stream吗？你可以尝试这样的事情：

...

using (var flacStream = File.Create(outputFile))
{
    FlacWriter flac = new FlacWriter(flacStream, wav.BitDepth, wav.Channels, wav.SampleRate);
    // Buffer for 1 second's worth of audio data
    byte[] buffer = new byte[wav.Bitrate / 8];
    int bytesRead;
    do
    {
        bytesRead = wav.InputStream.Read(buffer, 0, buffer.Length);
        flac.Convert(buffer, 0, bytesRead);
    } while (bytesRead > 0);
    flac.Dispose();
    flac = null;
}

...

.wav到.flac转换器在C＃

1 个答案: