audio

My Humax Foxsat HDR satellite receiver has suddenly stopped outputting audio on all but my HD channels. Non-HD video is fine but it has no sound output. I had not fiddled about with connections and cables so I’m really puzzled. Playback is to an LG 49UM7100PLB 49 Inch TV. I hope someone can...

Hello friends, Recently I am encountering a problem while editing a video. I need to extract audio from video. So can anyone suggest some ideas about doing this?