声音与均衡器

Question

由于几天，我试图创建一个均衡器使用C＃。 看到NAudio相当多的时间，但我找不到任何适用于naudio的工作均衡器。 现在几天后，我终于来了@stackoverflow，希望你知道一种使用c＃创建均衡器的方法。

PS：我也尝试了System.Media.SoundPlayer。但是这个SoundPlayer甚至不支持与dsp有关的任何事情。那么有没有另一个音频库与外面的“纯粹”音频一起工作？

Answer 1

那么，有没有与“纯”外部音频中的另一种声音图书馆？

是的，有一个：https://cscore.codeplex.com

按照EqualizerSample，你可以使用这样的均衡器：

using CSCore; 
using CSCore.Codecs; 
using CSCore.SoundOut; 
using CSCore.Streams; 
using System; 
using System.Threading; 

... 

private static void Main(string[] args) 
{ 
    const string filename = @"C:\Temp\test.mp3"; 
    EventWaitHandle waitHandle = new AutoResetEvent(false); 

    try 
    { 
     //create a source which provides audio data 
     using(var source = CodecFactory.Instance.GetCodec(filename)) 
     { 
      //create the equalizer. 
      //You can create a custom eq with any bands you want, or you can just use the default 10 band eq. 
      Equalizer equalizer = Equalizer.Create10BandEqualizer(source); 

      //create a soundout to play the source 
      ISoundOut soundOut; 
      if(WasapiOut.IsSupportedOnCurrentPlatform) 
      { 
       soundOut = new WasapiOut(); 
      } 
      else 
      { 
       soundOut = new DirectSoundOut(); 
      } 

      soundOut.Stopped += (s, e) => waitHandle.Set(); 

      IWaveSource finalSource = equalizer.ToWaveSource(16); //since the equalizer is a samplesource, you have to convert it to a raw wavesource 
      soundOut.Initialize(finalSource); //initialize the soundOut with the previously created finalSource 
      soundOut.Play(); 

      /* 
      * You can change the filter configuration of the equalizer at any time. 
      */ 
      equalizer.SampleFilters[0].SetGain(20); //eq set the gain of the first filter to 20dB (if needed, you can set the gain value for each channel of the source individually) 

      //wait until the playback finished 
      //of course that is optional 
      waitHandle.WaitOne(); 

      //remember to dispose and the soundout and the source 
      soundOut.Dispose(); 
     } 
    } 
    catch(NotSupportedException ex) 
    { 
     Console.WriteLine("Fileformat not supported: " + ex.Message); 
    } 
    catch(Exception ex) 
    { 
     Console.WriteLine("Unexpected exception: " + ex.Message); 
    } 
} 

可以均衡配置，以任何你想要的东西。而且由于它实时运行100％，所有更改都会立即得到应用。如果需要，还可以单独访问修改每个通道。