If your file name uses spaces, you can place the video's name and extension in quotes. The Linux terminal is case-sensitive, so it won't open your file otherwise. Be sure to keep your file name exactly as it appears (for example, if your file name uses a capital letter, enter it using the capital letter in the command line).If you don't want to see it, you can add the -loglevel panic option to tell FFmpeg to only print serious errors and questions. By default, FFmpeg outputs a lot of text during the conversion.For example, to convert an MP4 video called "Kitties" into a WAV audio file called "Kitty-sounds", you would type ffmpeg -i Kitties.mp4 -vn -acodec copy Kitty-sounds.wav. Try also adding the option -acodec copy to avoid audio quality loss, although that may not always be possible.
If you want to convert video to audio, add the -vn option to tell FFmpeg that you don't need a video.For example, to convert an MP4 video called "Kitties" into an OGG video called "Cats", you would type ffmpeg -i Kitties.mp4 Cats.ogg.Be prepared to wait a long time, especially if you're converting a long and/or high-quality video. The conversion command follows the format ffmpeg -i source_file target_file.
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