private static void ConvertAiffToWav(string aiffFile, string wavFile)
{
using (AiffFileReader reader = new AiffFileReader(aiffFile))
{
using (WaveFileWriter writer = new WaveFileWriter(wavFile, reader.WaveFormat))
{
byte[] buffer = new byte[4096];
int bytesRead = 0;
do
{
bytesRead = reader.Read(buffer, 0, buffer.Length);
writer.Write(buffer, 0, bytesRead);
} while (bytesRead > 0);
}
}
}
private void printAudioWave()
{
BinaryReader binRead = null;
uint dataSize = 0;
int numSamples = 0;
Point[] points = new Point[pictureBox.Width];
int coefForWidth = 0;
int coeffForHeight = 0;
Pen penCountur = new Pen(Color.Black, 2);
SolidBrush drawBrush = new SolidBrush(Color.Black);
StringFormat drawFormat = new StringFormat();
Graphics graphicMain = pictureBox.CreateGraphics();
switch (currentAudioFormat)
{
case "wav":
Cursor.Current = Cursors.WaitCursor;
fileStreamInput.Read(new byte[4], 0, 4);
binRead = new BinaryReader(fileStreamInput);
dataSize = (uint)(fileStreamInput.Length / 4);
audioData = new Int16[dataSize];
fileStreamInput.Seek(40, System.IO.SeekOrigin.Begin);
numSamples = (int)(dataSize / 1);
for (int i = 0; i < numSamples; i++)
{
audioData[i] = binRead.ReadInt16();
}
coefForWidth = (int)(audioData.Length / (pictureBox.Width));
coeffForHeight = (int)(65536 / (pictureBox.Height - 40));
for (int i = 0; i < pictureBox.Width; i++)
{
points[i] = new Point(i, (int)((audioData[i * coefForWidth] / coeffForHeight) + (pictureBox.Height / 2)));
}
graphicMain.Clear(Color.White);
graphicMain.DrawLines(penCountur, points);
Cursor.Current = Cursors.Default;
break;
case "aiff":
Cursor.Current = Cursors.WaitCursor;
string tempFileName = Path.Combine(Environment.CurrentDirectory, "temp.wav");
using (AiffFileReader reader = new AiffFileReader(inputAudioFile))
{
using (WaveFileWriter writer = new WaveFileWriter(tempFileName, reader.WaveFormat))
{
byte[] buffer = new byte[4096];
int bytesRead = 0;
do
{
bytesRead = reader.Read(buffer, 0, buffer.Length);
writer.Write(buffer, 0, bytesRead);
} while (bytesRead > 0);
}
}
FileStream tempFileStreamInput = new FileStream(tempFileName, FileMode.Open, FileAccess.Read);
tempFileStreamInput.Read(new byte[4], 0, 4);
binRead = new BinaryReader(tempFileStreamInput);
dataSize = (uint)(tempFileStreamInput.Length / 4);
audioData = new Int16[dataSize];
tempFileStreamInput.Seek(40, System.IO.SeekOrigin.Begin);
numSamples = (int)(dataSize / 1);
for (int i = 0; i < numSamples; i++)
{
audioData[i] = binRead.ReadInt16();
}
tempFileStreamInput.Close();
File.Delete(tempFileName);
coefForWidth = (int)(audioData.Length / (pictureBox.Width));
coeffForHeight = (int)(65536 / (pictureBox.Height - 40));
for (int i = 0; i < pictureBox.Width; i++)
{
points[i] = new Point(i, (int)((audioData[i * coefForWidth] / coeffForHeight) + (pictureBox.Height / 2)));
}
graphicMain.Clear(Color.White);
graphicMain.DrawLines(penCountur, points);
Cursor.Current = Cursors.Default;
break;
default:
break;
}
}
public override int Read(byte[] buffer, int offset, int count)
{
return(m_reader.Read(buffer, offset, count));
}
