public void ToneGeneratorChangesFromSubscriberUpdates()
{
// Instantiate Tone Generator for testing
// Set Freq to 1000
ToneGenerator toneGenerator = new ToneGenerator(NoteCtrl.Control, AudioSettings.outputSampleRate, 1);
toneGenerator.Frequency = 1000;
float precisionDelta = .0001f;
int bufferLen = 10;
// Get Data from the Generator
float[] buffer1 = new float[bufferLen];
toneGenerator.Read(buffer1, 0, buffer1.Length);
// Expected buffer as manually generated in Python {Frequency: 1000, Gain: 0.7, FS: 48000} (samples [0:10])
float[] expectedBuffer1000 = { 0.0f, 0.09136833f, 0.18117333f, 0.2678784f, 0.35f,
0.426133f, 0.49497475f, 0.55534734f, 0.60621778f, 0.64671567f };
AssertBuffersAreEqual(expectedBuffer1000, buffer1, precisionDelta);
int newMidi = 69;
toneGenerator.Notify(new NoteMessage(newMidi));
float[] buffer2 = new float[bufferLen];
toneGenerator.Read(buffer2, 0, buffer2.Length);
// Expected buffer as manually generated in Python {Frequency: 440, Gain: 0.7, FS: 48000} (samples [10:20])
float[] expectedBuffer440 = { 0.38124732f, 0.41440923f, 0.44619679f, 0.47650461f, 0.50523216f,
0.53228418f, 0.55757094f, 0.5810086f, 0.60251942f, 0.62203206f };
AssertBuffersAreEqual(expectedBuffer440, buffer2, precisionDelta);
}
public void ToneGeneratorCreatesSineWave()
{
// Instantiate Tone Generator for testing
// Set Freq to 1000
ToneGenerator toneGenerator = new ToneGenerator(NoteCtrl.Control, AudioSettings.outputSampleRate, 1);
toneGenerator.Frequency = 1000;
// Get Data from the Generator
int bufferLen = 10;
float[] buffer = new float[bufferLen];
toneGenerator.Read(buffer, 0, buffer.Length);
// Expected buffer as manually generated in Python {Frequency: 1000, Gain: 0.7, FS: 48000}
float[] expectedBuffer = { 0.0f, 0.09136833f, 0.18117333f, 0.2678784f, 0.35f,
0.426133f, 0.49497475f, 0.55534734f, 0.60621778f, 0.64671567f };
AssertBuffersAreEqual(expectedBuffer, buffer, .0001f);
}
void OnAudioFilterRead(float[] data, int channels)
{
toneGenerator.Read(data, 0, data.Length);
}
