How to apply echo effect on a video (sound) using ffmpeg. Please advice me ffmpeg command for the same.
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What did your research tell you? Did you search for "ffmpeg echo effect"? Please read How do I ask a good question?– DavidPostill ♦Commented Mar 3, 2016 at 18:37
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This might help.– doug65536Commented Mar 3, 2016 at 18:39
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1 Answer
ffmpeg does have an echo filter
Usage is
ffmpeg -i input.mp4 -map 0 -c:v copy -af aecho=0.6:0.3:1000:0.5 output.mp4
The four parameters specified, separated by colons, are
in_gain
Set input gain of reflected signal. Default is 0.6.
out_gain
Set output gain of reflected signal. Default is 0.3.
delays
Set list of time intervals in milliseconds between original signal and reflections separated by ’|’. Allowed range for each delay is (0 - 90000.0]. Default is 1000.
decays
Set list of loudnesses of reflected signals separated by ’|’. Allowed range for each decay is (0 - 1.0]. Default is 0.5.
