protected override double[] generate(int nSamples)
{
double[] outData = new double[nSamples];
Random rand = new Random(); //if a new random is created every time, it doesn't update fast enough!
int freqInSamples = (int)((1 / freq) * SynthesisBase.SampleRate);
int numChunks = nSamples / freqInSamples;
WaveAudio chunk = null;
for (int i = 0; i < numChunks; i++)
{
if (i % this.chunksbeforeswitch == 0)
{
if (chunk == null)
{
//seed with Sine wave
chunk = new Sine(210, amplitude / 4).CreateWaveAudio(1 / freq + 0.01);
}
else
{
WaveAudio newchunk = new RedNoise(amplitude, rednoisefactor, rand).CreateWaveAudio(1 / freq + 0.01);
chunk = WaveAudio.Mix(chunk, this.smoothing, newchunk, 1 - this.smoothing);
}
}
Array.Copy(chunk.data[0], 0, outData, i * freqInSamples, freqInSamples);
}
//fill in the rest
if (numChunks * freqInSamples < nSamples)
{
Array.Copy(chunk.data[0], 0, outData, numChunks * freqInSamples, nSamples - numChunks * freqInSamples);
}
return(outData);
}
public static void operations_test(AudioPlayer pl)
{
WaveAudio noteLongLow = new Triangle(Triangle.FrequencyFromMidiNote(60), 0.5).CreateWaveAudio(1.0);
WaveAudio noteShortHi = new Triangle(Triangle.FrequencyFromMidiNote(64), 0.5).CreateWaveAudio(0.5);
pl.Play(WaveAudio.Concatenate(noteLongLow, noteShortHi));
pl.Play(WaveAudio.Concatenate(noteShortHi, noteLongLow));
pl.Play(WaveAudio.Mix(noteShortHi, noteLongLow));
pl.Play(WaveAudio.Mix(noteLongLow, noteShortHi));
WaveAudio tmp = new Sine(200,1.0).CreateWaveAudio(4.0);
tmp.setNumChannels(2, true);
pl.Play(WaveAudio.Modulate(new WaveAudio(mediadir+"d44k16bit2ch.wav"), tmp));
WaveAudio cp;
cp = noteLongLow.Clone(); cp.FadeIn(0.3); pl.Play(cp);
cp = noteLongLow.Clone(); cp.FadeOut(0.3); pl.Play(cp);
cp = noteLongLow.Clone(); cp.Amplify(0.5); pl.Play(cp);
cp = noteLongLow.Clone(); cp.Amplify(2.0); pl.Play(cp);
}
protected override double[] generate(int nSamples)
{
double[] outData = new double[nSamples];
Random rand = new Random(); //if a new random is created every time, it doesn't update fast enough!
int freqInSamples = (int)((1 / freq) * SynthesisBase.SampleRate);
int numChunks = nSamples / freqInSamples;
WaveAudio chunk = null;
for (int i = 0; i < numChunks; i++)
{
if (i % this.chunksbeforeswitch == 0)
{
if (chunk == null)
{
//seed with Sine wave
chunk = new Sine(210, amplitude / 4).CreateWaveAudio(1 / freq + 0.01);
}
else
{
WaveAudio newchunk = new RedNoise(amplitude, rednoisefactor, rand).CreateWaveAudio(1 / freq + 0.01);
chunk = WaveAudio.Mix(chunk, this.smoothing, newchunk, 1 - this.smoothing);
}
}
Array.Copy(chunk.data[0], 0, outData, i * freqInSamples, freqInSamples);
}
//fill in the rest
if (numChunks * freqInSamples < nSamples)
Array.Copy(chunk.data[0], 0, outData, numChunks * freqInSamples, nSamples - numChunks * freqInSamples);
return outData;
}
// normally one seperates ui and engine, as the other experiments do, but here I did it the fast way.
public WaveAudio viblab_Generate()
{
WaveAudio w;
// get source
if (this.vibLab_chkSound.Checked)
{
if (this.m_vibLab_filename == null) { MessageBox.Show("You haven't opened a sound."); return null; }
//I think we already loaded this. So it's kind of wasteful. Too tired to fix this though.
w = new WaveAudio(this.m_vibLab_filename);
}
else
{
double freq = (this.vibLab_source_bar.Value / 100.0) * 440 + 100;
w = new Sine(freq, 0.7).CreateWaveAudio(20.0);
}
if (vibLab_panel1.Visible)
{
if (vibLab_chkTrem1.Checked)
w = Effects.Tremolo(w, this.vibLab_valueFreq1, this.vibLab_valueWidth1);
else
w = Effects.Vibrato(w, this.vibLab_valueFreq1, this.vibLab_valueWidth1);
}
if (vibLab_panel2.Visible)
{
if (vibLab_chkTrem2.Checked)
w = Effects.Tremolo(w, this.vibLab_valueFreq2, this.vibLab_valueWidth2);
else
w = Effects.Vibrato(w, this.vibLab_valueFreq2, this.vibLab_valueWidth2);
}
if (vibLab_panel3.Visible)
{
if (vibLab_chkTrem3.Checked)
w = Effects.Tremolo(w, this.vibLab_valueFreq3, this.vibLab_valueWidth3);
else
w = Effects.Vibrato(w, this.vibLab_valueFreq3, this.vibLab_valueWidth3);
}
return w;
}