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• FFmpeg mix multiple audio without losing the volume [duplicate]

  13 juillet 2019, par Praveen Tamil

  This question already has an answer here :

  • FFMPEG amix filter volume issue with inputs of different duration
    
    8 answers
    

  I tried to mix the multiple audio file and generate single audio file as output without losing the volume.

  Below is the command I tried

  ffmpeg -i audio_1.mp3 -i audio_2.mp3 -i audio_3.mp3 -filter_complex "[0:a][1:a][2:a]amix=inputs=3:duration=longest" audio_merged.mp3

  But It generate the output audio with low volume.
  What is the best way to generate audio with mixture of multiple audio and without losing the original volume.

  Source files : https://wetransfer.com/downloads/d9490fd63e2022f048aff9faad7b323e20190713144816/737c5b

• How to merge multiple audio files using FFMpeg command with specific time delay for each audio [duplicate]

  24 juillet 2019, par Raja chakraborty

  This question already has an answer here :

  • ffmpeg - how to merge multiple audio with time offset into a video ? [closed]
    
    2 answers
    

  I need to merge multiple audio file of different formats(audio files only) into one single mp3 file output.
  Each audio file have its own start delay or offset in seconds.

  Till now i tried many commands but nothing works.
  Last thing where i stuck is :

     ffmpeg -i 1.mp4 -i 1.3gp -i 2.3gp -i 1.mp3
  
    -filter_complex "[2]adelay=10000|10000[s2];[3:a][1:a][s2]amix=3[a]"
  
    -map 0:v -map "[a]" -c:v copy result.mp4

  Update

  i get this error Unable to find a suitable output format for ’’

• merge multiple audio with delay in ffmpeg [duplicate]

  4 août 2019, par Mohammadreza Janipour

  This question already has an answer here :

  • ffmpeg - how to merge multiple audio with time offset into a video ? [closed]
    
    2 answers
    

  I want to use FFMPEG to merege multiple audios in this ffmpeg command :

  -i audio1.mp3 -i audio2.mp3 -i audio3.mp3 -filter_complex amix=inputs=3:duration=first output_audio.mp3

  But i want audio1.mp3 play at start time and audio2.mp3 start after 2 seconds and audio3.mp3 start after 5 seconds.

  What should I do ? Please help me. Thanks