Esempio n. 1
0
        public void TestPhaseVocoding()
        {
            //string baseFile = "Boston_HitchARide";
            string baseFile = "000000";

            WaveEncoding.LoadBGCSimple(
                filepath: DataManagement.PathForDataFile("Test", $"{baseFile}.wav"),
                simpleAudioClip: out SimpleAudioClip song);

            song = song.Window(10f).Cache();

            //First, write unmodified
            WaveEncoding.SaveFile(
                filepath: DataManagement.PathForDataFile("Test", $"{baseFile}_Unmodified.wav"),
                channels: song.Channels,
                sampleRate: (int)song.SamplingRate,
                samples: song.Samples,
                overwrite: true);

            //Next, Slow it down 5%
            {
                SimpleAudioClip slowed_05 = song.PhaseVocode(0.95f).Cache();

                //Next, write it slowed 5%
                WaveEncoding.SaveFile(
                    filepath: DataManagement.PathForDataFile("Test", $"{baseFile}_Slowed_05.wav"),
                    channels: slowed_05.Channels,
                    sampleRate: (int)slowed_05.SamplingRate,
                    samples: slowed_05.Samples,
                    overwrite: true);
            }

            //Next, Slow it down 25%
            {
                SimpleAudioClip slowed_25 = song.PhaseVocode(0.75f).Cache();

                //Next, write it slowed 5%
                WaveEncoding.SaveFile(
                    filepath: DataManagement.PathForDataFile("Test", $"{baseFile}_Slowed_25.wav"),
                    channels: slowed_25.Channels,
                    sampleRate: (int)slowed_25.SamplingRate,
                    samples: slowed_25.Samples,
                    overwrite: true);
            }

            //Next, Slow it down 50%
            {
                SimpleAudioClip slowed_50 = song.PhaseVocode(0.5f).Cache();

                //Next, write it slowed 5%
                WaveEncoding.SaveFile(
                    filepath: DataManagement.PathForDataFile("Test", $"{baseFile}_Slowed_50.wav"),
                    channels: slowed_50.Channels,
                    sampleRate: (int)slowed_50.SamplingRate,
                    samples: slowed_50.Samples,
                    overwrite: true);
            }
        }
        public void UpScalingTest()
        {
            float[] singleChannelSamples = CreateSineWave(1, 22050f);
            string  upscaledFile         = DataManagement.PathForDataFile("Test", "upscaled.wav");

            IBGCStream stream = new SimpleAudioClip(
                samples: LinearInterpolation.FactorUpscaler(
                    samples: singleChannelSamples,
                    factor: 2,
                    channels: 1),
                channels: 1);

            Assert.IsTrue(WaveEncoding.SaveStream(
                              filepath: upscaledFile,
                              stream: stream,
                              overwrite: true));
        }