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i am new to video production , and i know that audio is a big part of the production process and cannot be messed up .

here is a audio that i recorded and then reduced the noise from audacity and exported

https://drive.google.com/file/d/1a5ZelYB6noyZhrVenkins0wZI62GC4Yj/view?usp=sharing

how can i further improve this audio

1 Answer 1

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Audio is not my expertise, i try my best.

The problems of your source are

  1. volume is low
  2. speech is fast
  3. sound is dull
  4. bass is insufficient
  5. treble is high

Therefore,

  1. I use the command to find the max volume

    ffmpeg -i source.wav -af "volumedetect" -vn -sn -dn -f null /dev/null
    , which is -6.4dB, then i transform the max volume to 0dB by using audio filter volume=6.4dB

  2. I slow down the speech by using audio filter atempo=0.8

  3. I make it lively by using audio filter aecho=0.06:0.9:50:0.7

  4. I boost the bass by using audio filter firequalizer=gain_entry='entry(0,24);entry(250,12);entry(500,4);entry(1000,2);

  5. I decrease the treble by using audio filter firequalizer=gain_entry='entry(4000,-4);entry(16000,-20)'

In conclusion, the command is

ffmpeg -y -i source.wav -af "\
volume=6.4dB,\
atempo=0.8,\
aecho=0.06:0.9:50:0.7,\
firequalizer=gain_entry='\
entry(0,24);entry(250,12);entry(500,4);entry(1000,2);\
entry(4000,-4);entry(16000,-20)'" \
output.wav

Hope you like it, good luck.

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  • I share the code colab.research.google.com/gist/xer-rex/… you can just do the playback on output.wav
    – xer-rex
    Nov 10, 2020 at 3:59
  • i don't think that the audio has a lot of reverb or echo(idk the difference between reverb and echo) it would be helpful if you could check if it is same in your system. My desired result is something suitable for Youtube :) Nov 10, 2020 at 10:07
  • The aecho document is ffmpeg.org/ffmpeg-filters.html#aecho; it might help you get to the point of your "desired result", or not. I have no further comments on the subjectivity of hearing.
    – xer-rex
    Nov 10, 2020 at 12:48

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