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FFMPEG Command to Apply Slow Reverbed & Stereo,Mono Effect to Audio File in Terminal
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Jun 3, 2025
ffmpeg -i input.mp3 -filter_complex "atempo=0.85, aecho=0.8:0.9:1000:0.3" output.mp3 ffmpeg -i input.mp3 -filter_complex "atempo=0.85, aecho=0.8:0.9:700|900:0.3|0.25" output.mp3
View Video Transcript
0:00
uh hello guys welcome to this video so
0:02
in this video I'll show you a ffmpg
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command which will actually apply uh
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various sound effects to your audio file
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it can be slow reverb stereo effect mono
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effect so these are very premium audio
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effects that you can apply to audio
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files it can be a song it can be music
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as well so slow reverbed first of all I
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will apply slow reverbed stereo effect
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mono effect so let me show you the audio
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file that I will be working right here
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this is a simple recording hello guys
0:33
welcome to this video so in this video I
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will show you by using maybe 30 you can
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even uh just take any sort of song music
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as well for copy copyright issues i
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can't use any song in this video so I'm
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just taking this input file so right
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here just open your command line i have
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given all these commands in the
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description of this video so if you
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basically need this you can copy paste
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so the first
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command this will apply the slow reved
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effect so let me just show you for
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ffmpg- i and then we provide the input
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file name input.mpp3 and then we apply
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the filter -ash
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filter complex and in double quotes we
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manipulate the a tempo value which is a
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filter inside ffmppg we provide the
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value
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0.85 comma and then there is again this
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filter a
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echo so these are different filters
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which are there in ffmppg so we are
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simply applying those filters so let me
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just paste it and I show you first of
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all we provide the input file right here
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after that we applying this filter dash
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filter complex in double quotes we're
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manipulating this value a tempo a echo
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so your sound will echo as well
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so So now this is complete just listen
1:59
to this effect the output file uh hello
2:03
guys welcome to this video so in this
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video I will show you how to change
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frame per second now to change the FPS
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we simply write numeric value here so
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you can see
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the it has now this slow reved effect
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effect so your sound is echoing so this
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is the command that you can so this will
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be really useful if you have a song or a
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music it will be a very useful command
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i've given this command in the
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description so there is also a second
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command you can also use which also does
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the same thing but in a slightly
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different way so let me paste it so here
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we again providing manipulating this a
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tempo value again manipulating a
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echo so just listen this
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effect so the command will you can see
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it takes very less time to process it
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and now you can uh hello guys welcome to
3:03
this video so this video using this flag
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here dash so you can see we are not
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using any sort of sound editor we are
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simply using this open-source ffmpg
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libraries so these two commands I've
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given the in the description of this
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video you can copy those commands and
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play with these commands to create these
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awesome sound effects so thank you very
3:24
much for watching this video and also
3:26
check out my website
3:28
freemediatools.com uh which contains
3:30
thousands of tools regarding audio video
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