C# NAudio 变声

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using NAudio.Wave;

using NAudio.Wave.SampleProviders;

namespace TestNAudio

{

    /// <summary>

    /// Interaction logic for MainWindow.xaml

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

        }

        private void Button_Click_1(object sender, RoutedEventArgs e)

        {

            Task.Run(()=>{

            var inPath = @"C:\Users\gwang\Documents\Visual Studio 2012\Projects\TestNAudio\TestNAudio\bin\Debug\AzureWebJobs103.mp3";

            var semitone = Math.Pow(2, 1.0 / 12);

            var upOneTone = semitone * semitone;

            var downOneTone = 1.0 / upOneTone;

            using (var reader = new MediaFoundationReader(inPath))

            {

                var pitch = new SmbPitchShiftingSampleProvider(reader.ToSampleProvider());

                using (var device = new WaveOutEvent())

                {

                    pitch.PitchFactor = (float)upOneTone* 2.0f; // or downOneTone

                    // just playing the first 10 seconds of the file

                    device.Init(pitch.Take(TimeSpan.FromSeconds(10)));

                    device.Play();

                    while (device.PlaybackState == PlaybackState.Playing)

                    {

                        Thread.Sleep(500);

                    }

                    MessageBox.Show("play complete ");

                }

            }

            });

        }

    }

}

注意：需引用 NAudio.dll

资源：　

NAudio :https://github.com/NAudio

NAudio.WaveFormRenderer: https://github.com/naudio/NAudio.WaveFormRenderer

C# NAudio 变声的相关教程结束。