如何在 C# 中播放声音文件的一部分？

Question

I want to play any specific portion of a sound file in C#. for example: an audio file is of 10 seconds. I want play the sounds that is only within 5 seconds to 8 seconds duration.

so, only a specific part that has a start and end position is the sound file will be played nothing else.

I haven't found any support in C#. can any other API help?

Answer 1

If you are using .NET 3.0 or later, I do recommend working with MediaPlayer it's a simple class. Please refer to its documentation on MSDN

Answer 2

Here's how you could do it with NAudio ( available on NuGet ):

var file = new AudioFileReader("test.mp3");
// skip the first 15 seconds
file.CurrentTime = TimeSpan.FromSeconds(15);
var trimmed = new OffsetSampleProvider(file);
// only play 10 seconds
var takeDuration = TimeSpan.FromSeconds(10);
trimmed.TakeSamples = (int)(trimmed.WaveFormat.SampleRate * takeDuration.TotalSeconds) * trimmed.WaveFormat.Channels;
var player = new WaveOut();
player.Init(new SampleToWaveProvider16(trimmed));
player.Play();