private static int[] RenderTone(SAMEAudioBit byteSpec)
{
if (byteSpec.length != 0.00192M)
{
_ = 1;
}
Dictionary <decimal, List <int> > headerByteCache = new Dictionary <decimal, List <int> >();
var computedSamples = new List <int>();
for (var i = 0; i < (44100 * byteSpec.length); i++)
{
for (var c = 0; c < 2; c++)
{
var sample = (decimal)(byteSpec.volume * Math.Sin((2 * Math.PI) * (i / 44100d) * byteSpec.frequency));
if (headerByteCache.ContainsKey(sample))
{
computedSamples.AddRange(headerByteCache[sample]);
}
else
{
List <int> thisSample = PackBytes("v", sample);
computedSamples.AddRange(thisSample);
headerByteCache.Add(sample, thisSample);
}
}
}
if (computedSamples.Count() != 340)
{
_ = false;
}
return(computedSamples.ToArray());
}
static int[] GenerateBinaryHeaders(string str, int volume)
{
SAMEAudioBit Mark = new SAMEAudioBit(2083, (decimal)0.00192, volume);
SAMEAudioBit Space = new SAMEAudioBit(1563, (decimal)0.00192, volume);
byte[] byteArray = Encoding.Default.GetBytes(str); // return byte array representation of the string
// converts bits in array to store information about how to render each bit
List <SAMEAudioBit> byteSpec = new List <SAMEAudioBit>();
SAMEAudioBit[] oneByte;
foreach (byte thisByte in byteArray)
{
oneByte = new SAMEAudioBit[8];
char c = (char)thisByte;
for (int bit = 0; bit < 8; bit++)
{
SAMEAudioBit thisBit = (thisByte & (short)Math.Pow(2, bit)) != 0 ? Mark : Space;
byteSpec.Add(new SAMEAudioBit(thisBit.frequency, thisBit.length, volume));
oneByte[bit] = thisBit;
}
}
// begin rendering tones from binary data
List <int> toneFrequencies = new List <int>();
foreach (SAMEAudioBit currentSpec in byteSpec)
{
int[] returnedBytes = RenderTone(currentSpec);
toneFrequencies.AddRange(returnedBytes);
}
bool IsExpected = true && (toneFrequencies[4] == 80 || toneFrequencies[4] == 182) && (toneFrequencies[5] == 5 || toneFrequencies[5] == 4);
IsExpected &= (toneFrequencies[6] == 182 || toneFrequencies[6] == 80) && (toneFrequencies[7] == 5 || toneFrequencies[7] == 4);
for (int i = 0; i <= 3; i++)
{
if (toneFrequencies[i] != 0)
{
IsExpected = false;
}
}
if (!IsExpected)
{
_ = 1;
}
//string output = "[";
//foreach (int t in toneFrequencies) {
// output += $"{(t < 10 ? " " : t < 100 ? " " : "")}{t},";
//}
//output += output.Substring(0, output.Length - 1) + $"] -> {str}\n";
//File.AppendAllText("characters.txt", output);
return(toneFrequencies.ToArray());
}
