////////////////////////////////////////////////////////
public SignalGeneratorResult GenerateSignal(SignalGenerateParams s, out WavData wavData)
{
List <PcmSamples1Channel> samples = new List <PcmSamples1Channel>();
int nSample = s.seconds * s.sampleRate;
PcmSamples1Channel ch = new PcmSamples1Channel(nSample, s.bitsPerSample);
samples.Add(ch);
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
SignalGeneratorResult result = SignalGeneratorResult.Success;
double truncFreq = (s.sampleRate / 2) * s.truncationRatio;
switch (s.ss)
{
case SignalShape.SineWave:
result = GenerateSineWave(ch, s.sampleRate, s.freq, s.amplitude);
break;
case SignalShape.SquareWave:
result = GenerateSquareWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq);
break;
case SignalShape.SawToothWaveDesc:
result = GenerateSawToothWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq, false);
break;
case SignalShape.SawToothWaveAsc:
result = GenerateSawToothWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq, true);
break;
case SignalShape.TriangleWave:
result = GenerateTriangleWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq);
break;
default:
System.Diagnostics.Debug.Assert(false);
break;
}
sw.Stop();
Console.WriteLine("{0} ms", sw.ElapsedMilliseconds);
wavData = new WavData();
wavData.Create(s.sampleRate, s.bitsPerSample, samples);
return(result);
}
private bool SaveWav(int sampleRate, int bitsPerSample, List <PcmSamples1Channel> samples, string path)
{
bool ret = true;
WavData wav = new WavData();
wav.Create(sampleRate, bitsPerSample, samples);
try {
using (BinaryWriter bw = new BinaryWriter(File.Open(path, FileMode.CreateNew))) {
wav.Write(bw);
}
} catch (Exception ex) {
resultString = ex.ToString();
ret = false;
}
return(ret);
}
static void Main(string[] args)
{
OptionInfo optionInfo = new OptionInfo(2);
ParseOptions(ref optionInfo, args);
WavData ch0Wav = ReadWavFromFile(optionInfo.channels[0].chFileName);
WavData ch1Wav = ReadWavFromFile(optionInfo.channels[1].chFileName);
if (ch0Wav.NumSamples != ch1Wav.NumSamples)
{
Console.WriteLine("E: NumSamples mismatch. ch0.numSamples={0}, ch1.numSamples={1}",
ch0Wav.NumSamples, ch1Wav.NumSamples);
PrintUsageAndExit();
}
WavData writeWav = new WavData();
List <PcmSamples1Channel> channels = new List <PcmSamples1Channel>();
for (int i = 0; i < 2; ++i)
{
channels.Add(new PcmSamples1Channel(ch0Wav.NumSamples, ch0Wav.BitsPerSample));
}
int ch0UseCh = optionInfo.channels[0].chFileUseCh;
int ch1UseCh = optionInfo.channels[1].chFileUseCh;
for (int i = 0; i < ch0Wav.NumSamples; ++i)
{
channels[0].Set16(i, ch0Wav.Sample16Get(ch0UseCh, i));
channels[1].Set16(i, ch1Wav.Sample16Get(ch1UseCh, i));
}
writeWav.Create(ch0Wav.SampleRate, ch0Wav.BitsPerSample, channels);
try {
using (BinaryWriter bw = new BinaryWriter(File.Open(optionInfo.outputWavFileName, FileMode.CreateNew))) {
writeWav.Write(bw);
}
} catch (Exception ex) {
Console.WriteLine("E: {0}", ex);
PrintUsageAndExit();
}
}
private void DoWork(object o, DoWorkEventArgs args)
{
Console.WriteLine("DoWork started\n");
int count = 0;
while (!asio.Run()) {
++count;
Console.WriteLine("\nForm1.DoWork() count={0} m_seconds={1}", count, m_seconds);
int percent = 100 * count / m_seconds;
if (100 < percent) {
percent = 100;
}
}
int[] recordedData = asio.RecordedDataGet(m_inputChannelNum, m_seconds * SAMPLE_RATE);
PcmSamples1Channel ch0 = new PcmSamples1Channel(m_seconds * SAMPLE_RATE, 16);
int max = 0;
int min = 0;
for (int i = 0; i < recordedData.Length; ++i) {
if (max < recordedData[i]) {
max = recordedData[i];
}
if (recordedData[i] < min) {
min = recordedData[i];
}
}
Console.WriteLine("max={0} min={1}", max, min);
if (max < -min) {
max = -min;
}
double mag = 32767.0 / max;
Console.WriteLine("mag={0}", mag);
for (int i = 0; i < recordedData.Length; ++i) {
ch0.Set16(i, (short)(recordedData[i] * mag));
}
List<PcmSamples1Channel> chList = new List<PcmSamples1Channel>();
chList.Add(ch0);
WavData wd = new WavData();
wd.Create(SAMPLE_RATE, 16, chList);
using (BinaryWriter bw = new BinaryWriter(File.Open(m_writeFilePath, FileMode.Create))) {
wd.Write(bw);
}
args.Result = 0;
Console.WriteLine("DoWork end\n");
}
private void DoWork(object o, DoWorkEventArgs args)
{
Console.WriteLine("DoWork started\n");
int count = 0;
while (!asio.Run())
{
++count;
Console.WriteLine("\nForm1.DoWork() count={0} m_seconds={1}", count, m_seconds);
int percent = 100 * count / m_seconds;
if (100 < percent)
{
percent = 100;
}
}
int[] recordedData = asio.RecordedDataGet(m_inputChannelNum, m_seconds * SAMPLE_RATE);
PcmSamples1Channel ch0 = new PcmSamples1Channel(m_seconds * SAMPLE_RATE, 16);
int max = 0;
int min = 0;
for (int i = 0; i < recordedData.Length; ++i)
{
if (max < recordedData[i])
{
max = recordedData[i];
}
if (recordedData[i] < min)
{
min = recordedData[i];
}
}
Console.WriteLine("max={0} min={1}", max, min);
if (max < -min)
{
max = -min;
}
double mag = 32767.0 / max;
Console.WriteLine("mag={0}", mag);
for (int i = 0; i < recordedData.Length; ++i)
{
ch0.Set16(i, (short)(recordedData[i] * mag));
}
List <PcmSamples1Channel> chList = new List <PcmSamples1Channel>();
chList.Add(ch0);
WavData wd = new WavData();
wd.Create(SAMPLE_RATE, 16, chList);
using (BinaryWriter bw = new BinaryWriter(File.Open(m_writeFilePath, FileMode.Create))) {
wd.Write(bw);
}
args.Result = 0;
Console.WriteLine("DoWork end\n");
}
////////////////////////////////////////////////////////
public SignalGeneratorResult GenerateSignal(SignalGenerateParams s, out WavData wavData)
{
List<PcmSamples1Channel> samples = new List<PcmSamples1Channel>();
int nSample = s.seconds * s.sampleRate;
PcmSamples1Channel ch = new PcmSamples1Channel(nSample, s.bitsPerSample);
samples.Add(ch);
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
SignalGeneratorResult result = SignalGeneratorResult.Success;
double truncFreq = (s.sampleRate / 2) * s.truncationRatio;
switch (s.ss) {
case SignalShape.SineWave:
result = GenerateSineWave(ch, s.sampleRate, s.freq, s.amplitude);
break;
case SignalShape.SquareWave:
result = GenerateSquareWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq);
break;
case SignalShape.SawToothWaveDesc:
result = GenerateSawToothWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq, false);
break;
case SignalShape.SawToothWaveAsc:
result = GenerateSawToothWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq, true);
break;
case SignalShape.TriangleWave:
result = GenerateTriangleWave(ch, s.sampleRate, s.freq, s.amplitude, truncFreq);
break;
default:
System.Diagnostics.Debug.Assert(false);
break;
}
sw.Stop();
Console.WriteLine("{0} ms", sw.ElapsedMilliseconds);
wavData = new WavData();
wavData.Create(s.sampleRate, s.bitsPerSample, samples);
return result;
}