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我目前正在尝试将 16 位样本转换为 32 位浮点。但是，我遇到了一个问题，我的 32 位浮点文件的音频时间减半。（例如，我的输入是一个四秒的 16 位PCM WAV，我的输出变成一个两秒的 IEEE 浮点 WAV。）这是代码。

using (WaveFileReader reader = new WaveFileReader(file.wav))
{
    IWaveProvider stream32 = new Wave16ToFloatProvider(reader);

    using (WaveFileWriter converted = new WaveFileWriter(temp.wav))
    {
        // Buffer length needs to be a power of 2 for FFT to work nicely.
        // However, make the buffer too long and pitches aren't detected fast enough.
        // Successful buffer sizes: 8192, 4096, 2048, 1024 (some
        // pitch detection algorithms need at least 2048).
        byte[] buffer = new byte[8192];
        int bytesRead;
        do
        {
            bytesRead = stream32.Read(buffer, 0, buffer.Length);
            converted.Write(buffer, 0, bytesRead);
        } while (bytesRead != 0 && converted.Length < reader.Length);
    }
}
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1 回答 1

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退出条件：

} while (bytesRead != 0 && converted.Length < reader.Length);

看起来很可疑；听起来您正在扩展数据，所以我们应该期望超过最后- 所以我的猜测是这个退出条件导致它过早退出。converted.Lengthreader.Length

于 2013-06-26T07:21:10.100 回答