如何使用C#播放PC扬声器的音高

using System;
using System.Media;

string audioFilePath = "音频文件路径";
SoundPlayer player = new SoundPlayer(audioFilePath);

MemoryStream stream = new MemoryStream();
player.LoadCompleted += (sender, e) =>
{
    player.Stream.CopyTo(stream);
};
player.Load();

NAudio.Wave.WaveFileReader reader = new NAudio.Wave.WaveFileReader(stream);

float pitch = 1.5f; // 调整音高的倍数，1.0为原始音高
NAudio.Wave.WaveFormatConversionStream pitchStream = new NAudio.Wave.WaveFormatConversionStream(new NAudio.Wave.WaveFormat(reader.WaveFormat.SampleRate * pitch, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels), reader);

NAudio.Wave.DirectSoundOut output = new NAudio.Wave.DirectSoundOut();
output.Init(pitchStream);
output.Play();

using System;
using System.Media;
using NAudio.Wave;

namespace AudioPlayer
{
    class Program
    {
        static void Main(string[] args)
        {
            string audioFilePath = "音频文件路径";
            SoundPlayer player = new SoundPlayer(audioFilePath);

            MemoryStream stream = new MemoryStream();
            player.LoadCompleted += (sender, e) =>
            {
                player.Stream.CopyTo(stream);
            };
            player.Load();

            WaveFileReader reader = new WaveFileReader(stream);

            float pitch = 1.5f; // 调整音高的倍数，1.0为原始音高
            WaveFormatConversionStream pitchStream = new WaveFormatConversionStream(new WaveFormat(reader.WaveFormat.SampleRate * pitch, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels), reader);

            DirectSoundOut output = new DirectSoundOut();
            output.Init(pitchStream);
            output.Play();

            Console.WriteLine("按任意键停止播放...");
            Console.ReadKey();

            output.Stop();
            output.Dispose();
            pitchStream.Dispose();
            reader.Dispose();
            stream.Dispose();
        }
    }
}