题
几天以来,我尝试使用 C# 创建一个均衡器。经常使用 NAudio,但我找不到任何可以与 naudio 配合使用的均衡器。几天后,我终于来到了 @stackoverflow,希望您知道使用 C# 创建均衡器的方法。
附:我还尝试过 System.Media.SoundPlayer。但 SoundPlayer 甚至不支持任何与 dsp 有关的内容。那么是否有另一个音频库可以与外部“纯”音频一起使用?
解决方案
那么是否有另一个音频库可以与外部“纯”音频一起使用?
是的,有一个: https://cscore.codeplex.com
根据 均衡器样本, ,您可以这样使用均衡器:
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);
}
}
您可以将均衡器配置为您想要的任何内容。由于它 100% 实时运行,所有更改都会立即应用。如果需要,还可以单独访问修改每个通道。
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