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Stereo (stereophonic sound) is a two-channel audio stream intended to recreate the natural stereo field. Use for questions related to stereophonic audio.

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Why does ffmpeg's conversion from mono to stereo lower the volume?

We start with this mono file: test.wav In audacity it looks like this: Then we convert it to stereo with this command: ffmpeg -i test.wav -ac 2 out.wav Now it looks like this: Notice that the … Finally, we convert the stereo back to mono: ffmpeg -i out.wav -ac 1 back.wav We should get the same file from which we started. …
Igor Liferenko's user avatar