如何使用生成的 wave、complex[] 数组写入 .wav 文件？

Question

I would like to know how to write to a .wav file, I have written the following code which supposedly writes data to the file. But when I try to play the sound file it says the file is corrupt / empty.

 try
            {
                SaveFileDialog save = new SaveFileDialog();
                save.Filter = "Wave File (*.wav)|*.wav;";
                if (save.ShowDialog() != System.Windows.Forms.DialogResult.OK)
                    return;

                using (FileStream FS = new FileStream(save.FileName, FileMode.Open, FileAccess.Write))
                {
                    BinaryWriter wr = new BinaryWriter(FS);

                    int subchunk1Size = 16;
                    short audioFormat = 1;
                    short bitsPerSample = 64;
                    short numChannels = 2;
                    int sampleRate = Convert.ToInt32(samplingRateBox.Text);
                    int byteRate = sampleRate * numChannels * (bitsPerSample / 8);
                    short blockAlign = (short)(numChannels * (bitsPerSample / 8));
                    int numSamples = Convert.ToInt32(numberOfsamplesBox.Text);

                    int subChunk2Size = numSamples * numChannels * (bitsPerSample / 8);

                    int chunkSize = 4 + (8 + subchunk1Size) + (8 + subChunk2Size);

                    wr.Write(getBytes("RIFF"));
                    wr.Write(chunkSize);
                    wr.Write(getBytes("WAVE"));
                    wr.Write(getBytes("fmt"));
                    wr.Write((byte)32);
                    wr.Write(subchunk1Size);
                    wr.Write(audioFormat);
                    wr.Write(numChannels);
                    wr.Write(sampleRate);
                    wr.Write(byteRate);
                    wr.Write(blockAlign);
                    wr.Write(bitsPerSample);
                    wr.Write(getBytes("data"));
                    wr.Write(subChunk2Size);

                    double[] primArray = new double[samples.Length];
                    byte[] byteArray = new byte[samples.Length * 8];

                    for (int i = 0; i < samples.Length; i++)
                    {
                        primArray[i] = Convert.ToDouble(samples[i].Real);
                    }

                    byteArray = doubleToBytes(primArray);

                    for (int i = 0; i < samples.Length; i++)
                    {
                        wr.Write(byteArray[i]);
                    }


                    for (int i = 0; i < samples.Length; i++)
                    {
                        primArray[i] = Convert.ToDouble(samples[i].Imaginary);
                    }

                    byteArray = doubleToBytes(primArray);

                    for (int i = 0; i < samples.Length; i++)
                    {
                        wr.Write(byteArray[i]);
                    }

                    wr.Close();
                    wr.Dispose();
                }
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
            }

As you can see I have tried converting from Complex to double, plus the header. The sampling rate and number of samples all come from textboxes. Plus I am assuming the bit depth is that of a double.

Answer 1

I have also tried using this method, however the length of the audio file is 0.

This used the NAudio library.

NAudio.Wave.WaveFileWriter waveWriter = null;
            WaveIn wi = new WaveIn();

            double[] primArray = new double[samples.Length];

            for (int i = 0; i < samples.Length; i++)
            {
                primArray[i] = Convert.ToDouble(samples[i].Real);
            }

            SaveFileDialog save = new SaveFileDialog();
            save.Filter = "Wave File (*.wav)|*.wav;";
            if (save.ShowDialog() != System.Windows.Forms.DialogResult.OK)
                return;

            wi = new NAudio.Wave.WaveIn();
            wi.WaveFormat = new WaveFormat(samplingRate,1);

            waveWriter = new WaveFileWriter(save.FileName, wi.WaveFormat);

            byte[] byteArray = new byte[samples.Length*8];

            byteArray = doubleToBytes(primArray);

            waveWriter.Write(byteArray, 0, byteArray.Length);