使用Naudio lib播放.wav文件

本文关键字：wav 文件 播放 lib Naudio 使用 | 更新日期: 2023-09-27 18:29:50

我尝试用NAudio-lib打开并播放.wav文件。

private OpenFileDialog openFileDialog = null;
private NAudio.Wave.IWavePlayer waveOutDevice;
private NAudio.Wave.BlockAlignReductionStream reductionStream = null;
private NAudio.Wave.BlockAlignReductionStream CreateStream(OpenFileDialog fileDialog)
{
    if (fileDialog.FileName.EndsWith(".mp3"))
    {
        NAudio.Wave.WaveStream pcm = NAudio.Wave.WaveFormatConversionStream.CreatePcmStream(new NAudio.Wave.Mp3FileReader(fileDialog.FileName));
        reductionStream = new NAudio.Wave.BlockAlignReductionStream(pcm);
    }
    else if (fileDialog.FileName.EndsWith(".wav"))
    {
        NAudio.Wave.WaveStream pcm = new NAudio.Wave.WaveChannel32(new NAudio.Wave.WaveFileReader(openFileDialog.FileName));
        reductionStream = new NAudio.Wave.BlockAlignReductionStream(pcm);
    }
    else
    {
        throw new InvalidOperationException("Unsupported");
    }
    return reductionStream;
}

和播放中按钮：

waveOutDevice = new NAudio.Wave.DirectSoundOut();
reductionStream = CreateStream(openFileDialog);
waveOutDevice.Init(reductionStream);

我使用的是NAudio 1.5版本。对于mp3文件来说，播放效果很好。当我选择.wav时，播放缓慢，吱吱作响。WaveStream pcm = WaveChannel32可能有问题？

使用Naudio lib播放.wav文件

您不需要使用BlockAlignReductionStream、WaveChannel32或CreatePcmStream。只需使用Mp3FileReader或WaveFileReader，并将其传递给您的IWavePlayer、

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