public static BitArray Decompose(IDemodulator demodulator, WavFile wavFile)
{
var samples = wavFile.Data.ToShortArray();
samples = new Trimmer().Trim(samples);
var hpFilter = new HighPassFilter(
cutoffFrequency: demodulator.CarrierFrequency / 2.0,
sampleRate: demodulator.SampleRate
);
// samples = hpFilter.FilterSamples(samples);
samples = new Normalizer().PeakNormalize(samples);
// samples = new PhaseFixer().FixPhase(samples, (int)demodulator.SampleRate, 2);
//
var soundBytes = samples.ToByteArray();
var processedSound = new WavFile(wavFile.SampleRate, soundBytes);
using (FileStream fs = new FileStream($"PROCESSED.wav", FileMode.Create)) {
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(processedSound.ToBytes());
}
//
var waveDecomposer = new WaveDecomposer(demodulator);
var dataSegments = waveDecomposer.FindDataSegments(samples);
BitArray data = null;
foreach (var segment in dataSegments)
{
var bits = demodulator.ReadBits(segment.DataSamples, segment.ZerosValue, segment.OnesValue, segment.BytesToRead);
if (data == null)
{
data = new BitArray(bits);
}
else
{
data = data.MergeWith(bits);
}
}
return(data);
}
public WaveDecomposer(IDemodulator demodulator)
{
Demodulator = demodulator;
}
public Demodulator(IDemodulator demodulator)
{
_demodulator = demodulator ?? throw new ArgumentNullException(nameof(demodulator));
}
public void Demodulator_PassedNullDemodulatorObject_ThrowsArgumentNullException()
{
IDemodulator nullDemodulator = null;
Assert.Throws <ArgumentNullException>(() => new Demodulator(nullDemodulator));
}
