//UnitySynth
private void ConvertBuffer(float[,] from, float[] to)
{
const int bytesPerSample = 2; //again we assume 16 bit audio
int channels = from.GetLength(0);
int bufferSize = from.GetLength(1);
int sampleIndex = 0;
//UnitySynth
if (!(to.Length == bufferSize * channels * bytesPerSample))
{
Debug.Log("Buffer sizes are mismatched.");
}
for (int i = 0; i < bufferSize; i++)
{
for (int c = 0; c < channels; c++)
{
// Apply master volume
float floatSample = from[c, i] * MainVolume;
// Clamp the value to the [-1.0..1.0] range
floatSample = SynthHelper.Clamp(floatSample, -1.0f, 1.0f);
to[sampleIndex++] = floatSample;
}
}
}
//--Public Methods
public AnalogInstrument(SynthHelper.WaveFormType waveformtype, int sampleRate)
: base()
{
//set type
this.type = waveformtype;
this.SampleRate = sampleRate;
//Proper calculation of voice states
_attack = SynthHelper.getSampleFromTime(sampleRate, SynthHelper.DEFAULT_ATTACK);
_release = SynthHelper.getSampleFromTime(sampleRate, SynthHelper.DEFAULT_RELEASE);
_decay = SynthHelper.getSampleFromTime(sampleRate, SynthHelper.DEFAULT_DECAY);
_hold = SynthHelper.getSampleFromTime(sampleRate, SynthHelper.DEFAULT_HOLD);
//set base attribute name
base.Name = waveformtype.ToString();
}
private void ConvertBuffer(float[,] from, byte[] to)
{
const int bytesPerSample = 2; //again we assume 16 bit audio
int channels = from.GetLength(0);
int bufferSize = from.GetLength(1);
// Make sure the buffer sizes are correct
//UnitySynth
if (!(to.Length == bufferSize * channels * bytesPerSample))
{
Debug.Log("Buffer sizes are mismatched.");
}
for (int i = 0; i < bufferSize; i++)
{
for (int c = 0; c < channels; c++)
{
// Apply master volume
float floatSample = from[c, i] * MainVolume;
// Clamp the value to the [-1.0..1.0] range
floatSample = SynthHelper.Clamp(floatSample, -1.0f, 1.0f);
// Convert it to the 16 bit [short.MinValue..short.MaxValue] range
short shortSample = (short)(floatSample >= 0.0f ? floatSample * short.MaxValue : floatSample * short.MinValue * -1);
// Calculate the right index based on the PCM format of interleaved samples per channel [L-R-L-R]
int index = i * channels * bytesPerSample + c * bytesPerSample;
// Store the 16 bit sample as two consecutive 8 bit values in the buffer with regard to endian-ness
if (!BitConverter.IsLittleEndian)
{
to[index] = (byte)(shortSample >> 8);
to[index + 1] = (byte)shortSample;
}
else
{
to[index] = (byte)shortSample;
to[index + 1] = (byte)(shortSample >> 8);
}
}
}
}
private void ConvertBuffer(float[,] from, float[] to)
{
int channels = from.GetLength(0);
int bufferSize = from.GetLength(1);
// Make sure the buffer sizes are correct
System.Diagnostics.Debug.Assert(to.Length == from.Length, "Buffer sizes are mismatched.");
int k = 0;
for (int i = 0; i < bufferSize; i++)
{
for (int c = 0; c < channels; c++)
{
// Apply master volume
float floatSample = from[c, i] * MainVolume;
//Clamp the value to the [-1.0..1.0] range
to[k] = SynthHelper.Clamp(floatSample, -1.0f, 1.0f);
k++;
}
}
}
public static float WhiteNoise(int note, double time)
{
return((float)(SynthHelper.getRandom() - (SynthHelper.getRandom())));
}