Remove GPG key and repository: sudo rm -rf /etc/apt//savoury1_ubuntu_ffmpeg4.gpg If you want to completely remove FFmpeg and related dependencies, execute the following command: sudo apt purge -autoremove -y ffmpeg In this case, the file will be converted from the dummy.mkv format to the dummy.mp4 format. The following command structure is used to simply convert a media file into a different format. Here, the -i flag signifies the input file.
When it finished, we can check FFmpeg version: ffmpeg -versionĪvailable encoders and decoders can be checked using the following commands: ffmpeg -encodersĭownload sample video file: wget -O test.mp4 Ĭonvert MP4 video file format to MKV using ffmpeg command: ffmpeg -i test.mp4 out.mkv Uninstall FFmpeg Any FFmpeg command will have the following structure.
Install FFmpeg 4.4: sudo apt install -y ffmpeg
Install FFmpegĪdd the FFmpeg repository: sudo add-apt-repository -y ppa:savoury1/ffmpeg4
This tutorial demonstrates how to install FFmpeg 4.4 on Ubuntu 20.04. These tools used for converting video and audio files from one format into another, resizing videos, streaming audio and video, and doing various other actions with media files. We will install FFmpeg from the mc3man ppa. After all you'll lose quality at each encoding step.FFmpeg is an open-source collection of tools that allows to process video and audio files. How to Install FFmpeg on Ubuntu Installing FFmpeg 4 the latest version on Ubuntu 14.x and above is easy. I can't think of any other reason why youtube would turn down the volume of your uploaded audio.īut rereading the post, maybe you shouldn't encode to mp3 and just upload wave files instead. I'm also not sure about the -15dB rms specifically for youtube, but all streaming services do something similar now days, though the exact peak, rms, lufs, etc values vary slightly between them. This is a simplified discussion and probably using some kind of LUFS metering would be more appropriate. That is for the final audio file, and not necessarily something to do with whatever limiter you are using. Thus my suspicion that the material had been compressed/limited to make it sound loud, and my recommendation to target somewhere close to -0.3dB peak and -15dB rms. If it's too compressed it will just turn it down until it's somewhere in the range of -15dB rms. In simple terms youtube reencodes the audio after you have uploaded it, if it thinks that it's "too loud" then it will make it less loud. Let me see if I can explain what I suspect is going on. Print 'aac-library (aka libfdk_aac) support first'
Print 'Note: perhaps you need to compile ffmpeg with Fraunhofer' Print 'sudo apt-get install lame libavcodec-extra-53' Print 'Note: perhaps you need mp3 lame encoder first, to install do' Print 'Extracts audio from mp4/flv to lame-mp3 or Fraunhofer-aac' If len(argv)=2 and argv.lower()='mp3':Įlif len(argv)=2 and argv.lower()='aac': #you should set mypath to YOUR home folder #cutoff any frequencies above (cutoff valid range is 173 - 20000, default=14000) in aac: This can be resolved by compiling ffmpeg in a terminal like this:Ĭode: Select all from subprocess import call
Libfdk_aac has been designated as "non-free", and you cannot download a pre-built ffmpeg that supports it. Which encoder should I use? What provides the best quality?įor AAC-LC the likely answer is: libfdk_aac > libfaac > Native FFmpeg AAC encoder (aac) > libvo_aacenc. Adjust the number to the upper frequency limit you prefer. If you want to preserve higher frequencies, use -cutoff 18000. But beware, it defaults to a low-pass filter of around 14kHz. Requires ffmpeg to be configured with -enable-libfdk_aac (and additionally-enable-nonfree if you're also using -enable-gpl). This is currently the highest-quality AAC encoder available with ffmpeg. No bitrate limit requiredĬontent at 1080i 60, should be deinterlaced, going from 60 interlaced fields per second to 30 progressive frames per second before uploading.įraunhofer FDK AAC codec library. Recommended bitrates, codecs, and resolutions, and more