NAudio音频文件转换

1、NuGet安装 NAudio，项目及demo的网址：https://github.com/naudio/NAudio

Encode to MP3, WMA and AAC with MediaFoundationEncoder

使用MediaFoundationEncoder将音频文件编码为MP3，WMA，AAC的Demo地址:

https://github.com/naudio/NAudio/blob/master/Docs/MediaFoundationEncoder.md

引用命名空间

using NAudio.Wave;

  string fromFilePath = @"F:\Test\ffmpegTest\ffmpegTest\audio.wav";
            string toFilePath = @"F:\Test\ffmpegTest\ffmpegTest\audio.mp3";

            using (var reader = new MediaFoundationReader(fromFilePath))
            {
                MediaFoundationEncoder.EncodeToMp3(reader, toFilePath);
            }