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记录来自 NAudio WaveIn 的输入，并输出到 NAudio WaveOut

发布于 2024-11-01 21:31:22 字数 88 浏览 1 评论 0原文

我希望能够通过 NAudio.WaveIn 从麦克风设备获取输入，然后通过 NAudio.WaveOut 将该精确输入输出到输出设备。

我该怎么做？

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作业与我同在 2024-11-08 21:31:22

这是对我有用的代码：

using NAudio.Wave;
using System;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form4 : Form
    {
        private BufferedWaveProvider bwp;
        WaveIn wi;
        WaveOut wo;

        public Form4()
        {
            InitializeComponent();
            wo = new WaveOut();
            wi = new WaveIn();
            wi.DataAvailable += new EventHandler<WaveInEventArgs>(wi_DataAvailable);

            bwp = new BufferedWaveProvider(wi.WaveFormat);
            bwp.DiscardOnBufferOverflow = true;

            wo.Init(bwp);
            wi.StartRecording();
            wo.Play();
        }

        void wi_DataAvailable(object sender, WaveInEventArgs e)
        {
            bwp.AddSamples(e.Buffer, 0, e.BytesRecorded);
        }
    }
}

Here is the code that worked for me:

using NAudio.Wave;
using System;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form4 : Form
    {
        private BufferedWaveProvider bwp;
        WaveIn wi;
        WaveOut wo;

        public Form4()
        {
            InitializeComponent();
            wo = new WaveOut();
            wi = new WaveIn();
            wi.DataAvailable += new EventHandler<WaveInEventArgs>(wi_DataAvailable);

            bwp = new BufferedWaveProvider(wi.WaveFormat);
            bwp.DiscardOnBufferOverflow = true;

            wo.Init(bwp);
            wi.StartRecording();
            wo.Play();
        }

        void wi_DataAvailable(object sender, WaveInEventArgs e)
        {
            bwp.AddSamples(e.Buffer, 0, e.BytesRecorded);
        }
    }
}

回复收藏 0 原文

樱花细雨 2024-11-08 21:31:22

最好的方法是使用 BufferedWaveProvider< /a> 作为 WaveOut 的输入。然后在 WaveIn 的 DataAvailable 回调中，将记录的数据提供给 BufferedWaveProvider

void DataAvailable(object sender, WaveInEventArgs args)
{
    bufferedWaveProvider.AddSamples(args.Buffer, 0, args.BytesRecorded);
}

您需要注意，默认缓冲区大小将导致明显的延迟，因此如果您希望低延迟，您可能需要对缓冲区大小进行一些实验，看看可以将其降低到多低。

The best way would be to use a BufferedWaveProvider as the input to WaveOut. Then in the DataAvailable callback of WaveIn, supply the data recorded to the BufferedWaveProvider

void DataAvailable(object sender, WaveInEventArgs args)
{
    bufferedWaveProvider.AddSamples(args.Buffer, 0, args.BytesRecorded);
}

You need to be aware that the default buffer sizes will result in a noticeable delay, so if you were hoping for low latency you might need to experiment a bit with buffer sizes to see how low you can get it.

回复收藏 0 原文

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