Initial commit — WPF guitar note name tutor using FFT frequency detection

2026-05-09 03:17:07 +00:00
commit 99b73f710a
30 changed files with 1637 additions and 0 deletions
@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.DirectX.DirectSound;
+
+namespace SoundCapture
+{
+    /// <summary>
+    /// Capture device.
+    /// </summary>
+    public class SoundCaptureDevice
+    {
+    	readonly Guid _id;
+
+    	readonly string _name;
+
+        public bool IsDefault
+        {
+            get { return _id == Guid.Empty; }
+        }
+
+        /// <summary>
+        /// Name of the device.
+        /// </summary>
+        public string Name
+        {
+            get { return _name; }
+        }
+
+        internal Guid Id
+        {
+            get { return _id; }
+        }
+
+        internal SoundCaptureDevice(Guid id, string name)
+        {
+            _id = id;
+            _name = name;
+        }
+
+        public static SoundCaptureDevice[] GetDevices()
+        {
+            CaptureDevicesCollection captureDevices = new CaptureDevicesCollection();
+            List<SoundCaptureDevice> devices = new List<SoundCaptureDevice>();
+            foreach (DeviceInformation captureDevice in captureDevices)
+            {
+                devices.Add(new SoundCaptureDevice(captureDevice.DriverGuid, captureDevice.Description));
+            }
+            return devices.ToArray();
+        }
+
+        public static SoundCaptureDevice GetDefaultDevice()
+        {
+            CaptureDevicesCollection captureDevices = new CaptureDevicesCollection();
+            SoundCaptureDevice device = null;
+            foreach (DeviceInformation captureDevice in captureDevices)
+            {
+                if(captureDevice.DriverGuid == Guid.Empty)
+                {
+                    device = new SoundCaptureDevice(captureDevice.DriverGuid, captureDevice.Description);
+                    break;
+                }
+            }
+            if (device == null)
+                throw new SoundCaptureException("Default capture device is not found");
+            return device;
+        }
+    }
+}