Extract audio: Difference between revisions
New page: Ed. note: Sorry this is more like a blog post. Having recorded the Molin Upper Elementary 5th Grade Christmas Concert using my video camera, I wanted to extract just the audio portion so ... |
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Having recorded the Molin Upper Elementary 5th Grade Christmas Concert using my video camera, I wanted to extract just the audio portion so that I could listen to the music all by itself without having to play the video. Besides, I could send the audio portion much more easily than I could send the 948 MB video file through email. A lossless .ogg file would be only 21 MB and 14 MB in lossy mp3 format. | Having recorded the Molin Upper Elementary 5th Grade Christmas Concert using my video camera, I wanted to extract just the audio portion so that I could listen to the music all by itself without having to play the video. Besides, I could send the audio portion much more easily than I could send the 948 MB video file through email. A lossless .ogg file would be only 21 MB and 14 MB in lossy mp3 format. | ||
The [[Video Editing]] article gives some examples for using mencoder and ffmpeg, but in this case I found using | The [[Video Editing]] article gives some examples for using mencoder and ffmpeg, but in this case I found using ffmpeg on the command line was the easiest tool after some initial trial and error. I was surprised to find out that Avidemux didn't just do what I wanted. With Avidemux, I tried 'save audio' which produced a relatively large file, that didn't play in anything. I ran ffmpeg -i on it, and it reported "unknown format" | ||
<source lang="bash"> | <source lang="bash"> | ||