title: Right channel audio only without changing bit depth via FFMPEG
body: <p>I have a stereo pcm audio file at 48 kHz and 24 bits. The left channel is empty. I want to result in a mono file from the right channel that is also 48 kHz and 24 bits. But each FFMPEG script I have tried results in the same sample rate but the default 16 bits.
  thanks</p>