After mixing this polish stereo to mono, the audio is broken (more or less silent):
ffmpeg -i http://doppelbauer.name/polish.wav -ac 1 -ar 16000 test.wav
How to mix left+right channel correctly?
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Share the full log.– GyanJul 14, 2021 at 12:46
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Open it in an audio editor to see if the theory is correct– TetsujinJul 14, 2021 at 14:08
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I opened the video in an audio editor - with no result.– doublemaxJul 14, 2021 at 14:13
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"No result" would be that there was no graphical representation of the sound… otherwise there is "some result". I did it for you. It's not 'stereo' it's phase-inverted - plain to see if you did what I asked, open it in an audio editor & look at the waveforms. i.stack.imgur.com/tmkdm.png– TetsujinJul 14, 2021 at 15:52
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Rotating the phase of one side 180 degrees doesn't really help. It's so badly recorded it just really needs doing again, properly.– TetsujinJul 14, 2021 at 15:57
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