我尝试打开并使用NAudio lib播放.wav
个文件。
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;
}
并在播放按钮中:
waveOutDevice = new NAudio.Wave.DirectSoundOut();
reductionStream = CreateStream(openFileDialog);
waveOutDevice.Init(reductionStream);
我正在使用NAudio 1.5版本。对于mp3文件,这很好玩。当我选择.wav
时,播放缓慢,吱吱作响。 WaveStream可能有问题pcm = WaveChannel32
?
答案 0 :(得分:4)
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,