void DrumKitTest::RunTest()
{
std::string workingDirectory("/home/jeremy/Desktop/Prog/RaspiDrums/Data/");
std::string kitLocation(workingDirectory + "Kits/default.xml");
DrumKit::Kit kit;
DrumKit::Module module(workingDirectory);
module.LoadKit(kitLocation, kit);
std::string xmlFileLoc(workingDirectory + "alsaConfig.xml");
Sound::AlsaParams aParams;
Sound::Alsa::ReadXmlConfig(aParams, xmlFileLoc);
Sound::Mixer mixer(module.soundParameters, aParams);
Sound::Alsa alsa(aParams, mixer);
std::string sensorFile(workingDirectory + "../out.raw");
char channel = 0;
IO::Sensor sensor(channel);
DrumKit::Trigger snareTrigger(kit.drum[0], mixer);
alsa.Start();
high_resolution_clock::time_point tStart = high_resolution_clock::now();
unsigned long long dt = 0;
while(dt < 10*1000)
{
high_resolution_clock::time_point t = high_resolution_clock::now();
dt = (unsigned long long) duration<double, std::milli>(t - tStart).count();
short value = sensor.GetOutput();
snareTrigger.Trig(value);
}
alsa.Stop();
return;
}
void DrumKit_HddTest::RunTest()
{
std::string workingDirectory("/home/jeremy/Desktop/Prog/RaspiDrums/Data/");
std::string kitLocation(workingDirectory + "Kits/default.xml");
DrumKit::Kit kit;
DrumKit::Module module(workingDirectory);
module.LoadKit(kitLocation, kit);
std::string xmlFileLoc(workingDirectory + "alsaConfig.xml");
Sound::AlsaParams aParams;
Sound::Alsa::ReadXmlConfig(aParams, xmlFileLoc);
Sound::Mixer mixer(module.soundParameters, aParams);
Sound::Alsa alsa(aParams, mixer);
std::string sensorFile(workingDirectory + "../out.raw");
IO::HddSensor hddSensor(sensorFile);
DrumKit::Trigger snareTrigger(kit.drum[0], mixer);
alsa.Start();
int N = hddSensor.GetDataLength();
for(int i = 0; i < N; i++)
{
short value = hddSensor.GetOutput();
snareTrigger.Trig(value);
}
alsa.Stop();
return;
}
int main(int argc, char* argv[])
{
(void)argc;
(void)argv;
unsigned int bpm = 120;
std::array<int, 10> notes = { { 40, 41, 28, 28, 28, 28, 27, 25, 35, 78 } };
std::array<int, 10> sweepRate = { { 1, 6, 6, 2, 1, 2, 4, 8, 3, 3 } };
std::array<int, 16> kickSequence = { { 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0 } };
unsigned int sweepPos = 0;
unsigned int kickPos = 0;
Oscillator<WaveformType::Saw<float>> sawA(0.0);
Oscillator<WaveformType::Saw<float>> sawB(0.0);
Oscillator<WaveformType::Triangle<float>> sweep(0.0);
Oscillator<WaveformType::Sine<float>> kick(0.0);
WhiteNoise<> noise;
Decay snareDecayA(0.4);
Decay snareDecayB(0.97);
Decay kickDecay(0.85);
Impulse trigger(bpm / 120.0f);
Impulse snareTrigger(bpm / 50.0f, 44100.0f, 0.5);
Impulse kickTrigger(bpm / 480.0f);
random_selector<> randomSelect;
float targetFrequency = 0.0f;
float bassFrequency = 0.0f;
Audio audio([&](Audio::sample_iterator aInBegin,
Audio::sample_iterator aInEnd,
Audio::sample_iterator aOutBegin,
Audio::sample_iterator aOutEnd)
{
for (Audio::sample_iterator it = aOutBegin; it != aOutEnd; it += 2)
{
if (trigger())
{
targetFrequency = mtof(randomSelect(notes));
sweep.setFrequency(sweepRate[sweepPos++]);
if (sweepPos >= sweepRate.size()) sweepPos = 0;
}
bassFrequency = targetFrequency * 0.0008 + bassFrequency * 0.9992;
sawA.setFrequency(bassFrequency * 1.01);
sawB.setFrequency(bassFrequency * 0.99);
int kickTrig = kickTrigger();
if (kickTrig)
{
kickTrig &= kickSequence[kickPos++];
if (kickPos >= kickSequence.size()) kickPos = 0;
}
float kickDec = kickDecay(kickTrig);
kick.setFrequency(40.0 + (kickDec * kickDec * kickDec * 200));
int snareTrig = snareTrigger();
float snareEnvelope = snareDecayA(snareTrig) * 2 + snareDecayB(snareTrig) * 0.05;
float snareLeft = noise() * snareEnvelope;
float snareRight = noise() * snareEnvelope;
float kickSample = kick() * kickDec * 7;
float sample = sawA() + sawB() + kickSample;
*it = sample + snareLeft;
*(it + 1) = sample + snareRight;
}
});
audio.play();
std::cout << "Stream opened with a buffer size of " << audio.bufferSize()
<< " samples, and a stream latency of " << audio.streamLatency()
<< " samples (" << (audio.streamLatency() / audio.samplerateControl().getSamplerate()) * 1000. << " ms.)" << std::endl;
std::cin.get();
}
