解决方法
从Nuget安装NAudio:
PM> Install-Package NAudio
void Main() { var mp3Path = @"C:\Users\Ronnie\Desktop\podcasts\hanselminutes_0350.mp3"; var outputPath = Path.ChangeExtension(mp3Path,".trimmed.mp3"); TrimMp3(mp3Path,outputPath,TimeSpan.FromMinutes(2),TimeSpan.FromMinutes(2.5)); } void TrimMp3(string inputPath,string outputPath,TimeSpan? begin,TimeSpan? end) { if (begin.HasValue && end.HasValue && begin > end) throw new ArgumentOutOfRangeException("end","end should be greater than begin"); using (var reader = new Mp3FileReader(inputPath)) using (var writer = File.Create(outputPath)) { Mp3Frame frame; while ((frame = reader.ReadNextFrame()) != null) if (reader.CurrentTime >= begin || !begin.HasValue) { if (reader.CurrentTime <= end || !end.HasValue) writer.Write(frame.RawData,frame.RawData.Length); else break; } } }
快乐的小道.