Initial commit

2020-11-10 20:36:10 +03:00
parent 4cff114d31
commit de7247af5b
6 changed files with 322 additions and 0 deletions
@@ -0,0 +1,124 @@
+using System;
+using System.CommandLine;
+using System.CommandLine.Invocation;
+using System.Globalization;
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+using NAudio.Wave;
+
+namespace SoundThermo
+{
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			CultureInfo.CurrentCulture = new CultureInfo("en-US");
+			var rootCommand = new RootCommand();
+			var listCommand = new Command("list", "List all available devices");
+			listCommand.Handler = CommandHandler.Create(ListDevices);
+			var recordCommand = new Command("record")
+			{
+				new Option<string>("--input", "Input device to record from (GUID)"),
+				new Option<float>("--duration", "How many seconds of audio you want to record"),
+			};
+			recordCommand.Handler = CommandHandler.Create<string, float>(RecordSamples);
+			var measureCommand = new Command("measure")
+			{
+				new Option<string>("--input", "Input device to record from (GUID)"),
+				new Option<string>("--output", "Output device to play sound to (GUID)"),
+				new Option<float>("--duration", "How many seconds of audio you want to record (uses twice this time because of recording on two channels)"),
+			};
+			measureCommand.Handler = CommandHandler.Create<string, string, float>(Measure);
+			rootCommand.AddCommand(listCommand);
+			rootCommand.AddCommand(measureCommand);
+			rootCommand.AddCommand(recordCommand);
+			rootCommand.InvokeAsync(args).Wait();
+		}
+
+		private async static Task Measure(string input, string output, float duration)
+		{
+			var leftMea = new Measurer(GetInputDevice(input), GetOutputDevice(output), Measurer.MeasureChannel.Left);
+			var leftResult = await leftMea.Measure(duration);
+			var rightMea = new Measurer(GetInputDevice(input), GetOutputDevice(output), Measurer.MeasureChannel.Right);
+			var rightResult = await rightMea.Measure(duration);
+			float k = 2 * rightResult;
+			float v0v = leftResult / k;
+			// assume r2 = 10K
+			float r1 = 10000 / v0v - 10000;
+			float t = 1.0f / (MathF.Log(r1 / 10000) / 4300.0f + 1.0f / 298.0f) - 273.0f;
+			Console.WriteLine(t.ToString());
+		}
+
+		private static WaveOutEvent GetOutputDevice(string guid)
+		{
+			WaveOutEvent device = null;
+			for (int n = -1; n < WaveOut.DeviceCount; n++)
+			{
+				var caps = WaveOut.GetCapabilities(n);
+				if (caps.ProductGuid.ToString() == guid)
+				{
+					device = new WaveOutEvent();
+					device.DeviceNumber = n;
+					break;
+				}
+			}
+			if (device == null)
+			{
+				throw new Exception("Unable to find device " + guid);
+			}
+			return device;
+		}
+
+		private static WaveInEvent GetInputDevice(string guid)
+		{
+			WaveInEvent device = null;
+			for (int n = -1; n < WaveIn.DeviceCount; n++)
+			{
+				var caps = WaveIn.GetCapabilities(n);
+				if (caps.ProductGuid.ToString() == guid)
+				{
+					device = new WaveInEvent();
+					device.DeviceNumber = n;
+					break;
+				}
+			}
+			if (device == null)
+			{
+				throw new Exception("Unable to find device " + guid);
+			}
+			return device;
+		}
+
+		private async static Task RecordSamples(string input, float duration)
+		{
+			WaveInEvent device = GetInputDevice(input);
+			var rec = new Recorder(device);
+			await rec.Record(duration);
+			using (FileStream fs = File.OpenWrite("recorded.txt"))
+			{
+				for (int i =  0; i < rec.samples.Count; i++)
+				{
+					fs.Write(Encoding.UTF8.GetBytes(rec.samples[i].ToString() + "\n"));
+				}
+			}
+		}
+
+		private static void ListDevices()
+		{
+			Console.WriteLine("List of audio devices in your system");
+			Console.WriteLine("Output devices:");
+			for (int n = -1; n < WaveOut.DeviceCount; n++)
+			{
+				var caps = WaveOut.GetCapabilities(n);
+				Console.WriteLine($"{n}: {caps.ProductName} {caps.ProductGuid}");
+			}
+			Console.WriteLine("Input devices:");
+			for (int n = -1; n < WaveIn.DeviceCount; n++)
+			{
+				var caps = WaveIn.GetCapabilities(n);
+				Console.WriteLine($"{n}: {caps.ProductName} {caps.ProductGuid}");
+			}
+		}
+	}
+}