Converting wav file to mono

Question

I'm trying to convert a stereo .wav file to mono using NAudio. One requirement is that I cannot use any native calls, as I need to run this code on Azure. Here's what I came with:

using (var waveFileReader = new WaveFileReader(sourceFileName))
    {
        var toMono = new StereoToMonoProvider16(waveFileReader);
        WaveFileWriter.CreateWaveFile(destFileName, toMono);
    }

My code works without errors, but the output is a file that contains pure silence.

Is there any other way to convert a file to mono?

Answer 1

You need to provide values for the LeftVolume and RightVolume properties of the StereoToMonoProvider16. For example, set them both to 0.5f to mix the channels, or set left to 1.0 and right to 0.0 to discard the right channel