public VocalSampler(Synthesizer synth, Phoneme vowel)
: base(synth)
{
bands = new[]
{
// open-mid back unrounded vowel
//new BandPassFilter(2600, 2700, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F3},
//new BandPassFilter(1170, 1170, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F2},
//new BandPassFilter(600, 600, synth.SampleRate, LowResonance, LowResonance) {Volume = LEVEL_F1},
// open-mid front unrounded vowel
new BandPassFilter(3500, 3600, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F4},
new BandPassFilter(2600, 2700, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F3},
new BandPassFilter(1800, 1900, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F2},
new BandPassFilter(650, 800, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F1},
// close front rounded vowel
//new BandPassFilter(3200, 3300, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F4},
//new BandPassFilter(2100, 2200, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F3},
//new BandPassFilter(1800, 1900, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F2},
//new BandPassFilter(200, 300, synth.SampleRate, LowResonance, LowResonance) {Volume = LEVEL_F1},
// near-open front unrounded vowel
//new BandPassFilter(2900, 3000, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F3},
//new BandPassFilter(1700, 1800, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F2},
//new BandPassFilter(800, 900, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F1},
// postalveolar approximant
//new BandPassFilter(3000, 3000, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F3},
//new BandPassFilter(1400, 1400, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F2},
//new BandPassFilter(350, 350, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F1},
// close-mid front unrounded vowel
//new BandPassFilter(3600, 3700, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F4},
//new BandPassFilter(2500, 2600, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F3},
//new BandPassFilter(2200, 2300, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F2},
//new BandPassFilter(450, 500, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F1},
// close front unrounded vowel
//new BandPassFilter(3000, 3000, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F3},
//new BandPassFilter(2250, 2250, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F2},
//new BandPassFilter(250, 250, synth.SampleRate, HighResonance, HighResonance) {Volume = LEVEL_F1},
// voiceless palatal-alveolar sibilant fricative
//new BandPassFilter(200, 1200, synth.SampleRate, 1.0f, 1.0f) { Volume = 0.075f },
//new BandPassFilter(1900, 5500, synth.SampleRate, .35f, .35f) { Volume = 0.01f },
//new BandPassFilter(2100, 2500, synth.SampleRate, .2f, .2f) { Volume = 0.1f },
//new BandPassFilter(3700, 4100, synth.SampleRate, .2f, .2f) { Volume = 0.050f },
//new BandPassFilter(4600, 5400, synth.SampleRate, .18f, .18f) { Volume = 0.060f },
//new BandPassFilter(6700, 7200, synth.SampleRate, .1f, .1f) { Volume = 0.0060f },
};
lowPass = new ButterworthFilter(500, synth.SampleRate, PassFilterType.LowPass, .1f);
highPass = new ButterworthFilter(6000, synth.SampleRate, PassFilterType.HighPass, .4f);
numBands = bands.Length;
}
public ArticulatorLayer(Synthesizer synth) : base(synth)
{
bpf1 = new BandPassFilter(0, 0, synth.SampleRate, RES_F1, RES_F1);
bpf2 = new BandPassFilter(0, 0, synth.SampleRate, RES_F2, RES_F2);
bpf3 = new BandPassFilter(0, 0, synth.SampleRate, RES_F3, RES_F3);
bpf4 = new BandPassFilter(0, 0, synth.SampleRate, RES_F4, RES_F4);
bpf5 = new BandPassFilter(0, 0, synth.SampleRate, RES_F5, RES_F5);
lpNoise = new ButterworthFilter(FREQ_LPNOISE, synth.SampleRate, PassFilterType.LowPass, RES_LPNOISE);
hpOverlay = new ButterworthFilter(FREQ_HPO, synth.SampleRate, PassFilterType.HighPass, RES_HPO);
lpOverlay = new ButterworthFilter(1, synth.SampleRate, PassFilterType.LowPass, RES_LPO);
UpdateLowerBandwidths();
UpdateLowerFormants();
UpdateHigherFormants();
}
static void RunTest(int numberOfVectors, int lengthOfVectors)
{
// Assemble the jagged array of vectors to filter.
double[][] vectorsToFilter = new double[numberOfVectors][];
for (int vectorNumber = 0; vectorNumber < vectorsToFilter.Length; vectorNumber++)
{
vectorsToFilter[vectorNumber] = new double[lengthOfVectors];
double[] vector = vectorsToFilter[vectorNumber];
for (int vectorIndex = 0; vectorIndex < vector.Length; vectorIndex++)
{
vector[vectorIndex] = vectorIndex;
}
}
// Run a single threaded test.
Stopwatch sw = new Stopwatch();
sw.Start();
double[][] filteredVectors = ButterworthFilter.FourthOrder(250, vectorsToFilter);
sw.Stop();
Debug.WriteLine(string.Format("Filter (vectors={0}, length={1}) Time: {2}", numberOfVectors, lengthOfVectors, sw.ElapsedMilliseconds));
System.GC.Collect();
Thread.Sleep(5000);
// Run a parallel test.
sw.Reset();
sw.Start();
double[][] filteredVectors2 = ButterworthFilter.ParallelFourthOrder(250, vectorsToFilter);
sw.Stop();
Debug.WriteLine(string.Format("Parallel Filter (vectors={0}, length={1}) Time: {2}", numberOfVectors, lengthOfVectors, sw.ElapsedMilliseconds));
// Now validate that each result is the same between the 2 different filtering method calls.
for (int vectorNumber = 0; vectorNumber < filteredVectors.Length; vectorNumber++)
{
double[] vector = filteredVectors[vectorNumber];
double[] vector2 = filteredVectors2[vectorNumber];
for (int vectorIndex = 0; vectorIndex < vector.Length; vectorIndex++)
{
Debug.Assert(vector[vectorIndex] == vector2[vectorIndex], "Mismatch");
}
}
System.GC.Collect();
Thread.Sleep(5000);
// Run a parallel test.
sw.Reset();
sw.Start();
double[][] filteredVectors3 = ButterworthFilter.ParallelFourthOrder(250, vectorsToFilter);
sw.Stop();
Debug.WriteLine(string.Format("Parallel Filter (vectors={0}, length={1}) Time: {2}", numberOfVectors, lengthOfVectors, sw.ElapsedMilliseconds));
System.GC.Collect();
Thread.Sleep(5000);
// Run a single threaded test.
sw.Reset();
sw.Start();
double[][] filteredVectors4 = ButterworthFilter.FourthOrder(250, vectorsToFilter);
sw.Stop();
Debug.WriteLine(string.Format("Filter (vectors={0}, length={1}) Time: {2}", numberOfVectors, lengthOfVectors, sw.ElapsedMilliseconds));
// Now validate that each result is the same between the 2 different filtering method calls.
for (int vectorNumber = 0; vectorNumber < filteredVectors3.Length; vectorNumber++)
{
double[] vector = filteredVectors3[vectorNumber];
double[] vector2 = filteredVectors4[vectorNumber];
for (int vectorIndex = 0; vectorIndex < vector.Length; vectorIndex++)
{
Debug.Assert(vector[vectorIndex] == vector2[vectorIndex], "Mismatch");
}
}
}