public void TestMethod()
{
const double silence = 0.0001;
var wavDataSmall = new float[] { 0.0001f, -0.8f, 0.05f, -0.05f, 0.2f, 0.4f, 1.0f, 0.0001f };
Bitmap png = AudioAnalyzer.DrawWaveformMono(wavDataSmall, new Size(1000, 600), 1, 1, 0, 44100);
string fileName = String.Format("wave-small-dataset-{0}.png", 1);
png.Save(fileName);
// crop
float[] wavDataSmallCropped = AudioUtils.CropAudioAtSilence(wavDataSmall, silence, false, 0);
png = AudioAnalyzer.DrawWaveformMono(wavDataSmallCropped, new Size(1000, 600), 1, 1, 0, 44100);
fileName = String.Format("wave-small-dataset-cropped{0}.png", 1);
png.Save(fileName);
// init audio system
var audioSystem = BassProxy.Instance;
float[] wavDataBig = BassProxy.ReadMonoFromFile(WAVE_INPUT_FILEPATH, 44100, 10, 0);
png = AudioAnalyzer.DrawWaveformMono(wavDataBig, new Size(1000, 600), 2000, 1, 0, 44100);
fileName = String.Format("wave-big-dataset-{0}.png", 1);
png.Save(fileName);
// crop
float[] wavDataBigCropped = AudioUtils.CropAudioAtSilence(wavDataBig, silence, false, 0);
png = AudioAnalyzer.DrawWaveformMono(wavDataBigCropped, new Size(1000, 600), 1, 1, 0, 44100);
fileName = String.Format("wave-big-dataset-cropped{0}.png", 1);
png.Save(fileName);
}
private void CropAudio()
{
VstHost host = VstHost.Instance;
// crop the audio at silence
float[] data = AudioUtils.CropAudioAtSilence(host.RecordedLeft.ToArray(), 0, false, 0);
host.RecordedLeft.Clear();
host.RecordedLeft.AddRange(data);
this.waveDisplayUserControl1.SetAudioData(host.RecordedLeft.ToArray());
}
void CropBtnClick(object sender, EventArgs e)
{
VstHost host = VstHost.Instance;
// crop the audio at silence
float[] data = AudioUtils.CropAudioAtSilence(host.RecordedLeft.ToArray(), 0, false, 0);
host.RecordedLeft.Clear();
host.RecordedLeft.AddRange(data);
MaxResolutionTrackBar.Maximum = (int)this.waveDisplayUserControl1.MaxResolution;
MaxResolutionTrackBar.TickFrequency = MaxResolutionTrackBar.Maximum / 10;
MaxResolutionTrackBar.Value = (int)this.waveDisplayUserControl1.MaxResolution;
StartPositionTrackBar.Maximum = (int)this.waveDisplayUserControl1.NumberOfSamples;
StartPositionTrackBar.TickFrequency = StartPositionTrackBar.Maximum / 10;
StartPositionTrackBar.Value = 0;
this.waveDisplayUserControl1.Resolution = (int)this.waveDisplayUserControl1.MaxResolution;
this.waveDisplayUserControl1.SetAudioData(host.RecordedLeft.ToArray());
}
