Beispiel #1
0
        public WavetableData Create(int samplesPerWave)
        {
            var tableCount = 64;
            var waveLen    = samplesPerWave;
            var output     = new WavetableData {
                Name = WavetableName, Data = new double[tableCount][]
            };

            for (int num = 0; num < tableCount; num++)
            {
                var wave       = new double[waveLen];
                var breakpoint = (int)(num / 64.0 * waveLen);
                var slope      = 1.0 / waveLen;
                var val        = 1.0;

                for (int i = 0; i < waveLen; i++)
                {
                    if (i == breakpoint)
                    {
                        val = 1.0;
                    }

                    wave[i] = val;
                    val    -= slope;
                }

                output.Data[num] = AudioLib.Utils.Normalize(wave);
            }

            return(output);
        }
        public static double[][][] GetWavetable(string wavetableName)
        {
            // Todo: unused tables never get unloaded
            if (wavetables.ContainsKey(wavetableName))
            {
                return(wavetables[wavetableName]);
            }

            var data        = WavetableData.FromFile(WavetableFiles[wavetableName]);
            var transformed = TransformWavetable(data.Data);

            wavetables[wavetableName] = transformed;
            return(wavetables[wavetableName]);
        }
Beispiel #3
0
        public WavetableData Create(int samplesPerWave)
        {
            var tableCount = 64;
            var waveLen    = samplesPerWave;
            var output     = new WavetableData {
                Name = "Pulse Wave", Data = new double[tableCount][]
            };

            for (int num = 0; num < tableCount; num++)
            {
                var wave       = new double[waveLen];
                var breakpoint = (int)((0.5 + num / 64.0 * 0.5) * waveLen);

                for (int i = 0; i < waveLen; i++)
                {
                    wave[i] = (i <= breakpoint) ? 1.0 : -1.0;
                }

                output.Data[num] = wave;
            }

            return(output);
        }
Beispiel #4
0
        public WavetableData Create(int samplesPerWave)
        {
            var tableCount = 64;
            var waveLen    = samplesPerWave;
            var output     = new WavetableData {
                Name = "Quantz Waves", Data = new double[tableCount][]
            };

            var rand  = new Random(42);
            var waves = Waves.Select(x => x).ToList();

            while (waves.Count < tableCount)
            {
                var randomWave = Enumerable.Range(0, 8).Select(x => rand.NextDouble() * 10).ToArray();
                waves.Add(randomWave);
            }

            var upsample = waveLen / 8;

            for (int w = 0; w < waves.Count; w++)
            {
                var wave    = waves[w];
                var newWave = new List <double>();
                for (int i = 0; i < wave.Length; i++)
                {
                    for (int j = 0; j < upsample; j++)
                    {
                        newWave.Add(wave[i]);
                    }
                }

                output.Data[w] = AudioLib.Utils.Normalize(newWave.ToArray());
            }

            return(output);
        }