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Encode/AAC - FFmpeg
https://trac.ffmpeg.org/wiki/Encode/AAC#:~:text=As%20a%20rule%20of%20thumb%2C%20for%20audible%20transparency%2C,ffmpeg%20-i%20input.wav%20-c%3Aa%20libfdk_aac%20-b%3Aa%20128k%20output.m4a
ffmpeg - How to specify audio and video bitrate - Super User
https://superuser.com/questions/319542/how-to-specify-audio-and-video-bitrate
In order to specify the target bitrate for video and audio, use the -b:v and -b:a options, respectively. You can use abbreviations like K for kBit/s and M for MBit/s. For example: ffmpeg -i input.mp4 -b:v 1M -b:a 192k output.avi Note: This is a simple one-pass encode that tries to reach the specified bitrate at the end.
How to Get Video Bitrate with FFmpeg (video, audio & …
https://www.skillsugar.com/how-to-get-video-bitrate-with-ffmpeg-video-audio-total
Getting the Audio Bitrate Only. To get the audio bitrate only, add -select_streams a:0 to your ffprobe command like this: ffprobe -i sample_5.mp4 -v quiet -select_streams a:0 -show_entries stream=bit_rate -hide_banner [STREAM] bit_rate=209716 [/STREAM] Getting the Video Bitrate Only
How to Set Average Video & Audio Bitrate in FFmpeg ...
https://www.skillsugar.com/how-to-set-average-video-audio-bitrate-in-ffmpeg
To set the target audio bitrate, use the -b:a flag followed by the bitrate value. In most cases this value will be in kilobit/s. ffmpeg -i input.wmv -b:a 120k output.mp4 Audio and Video Command. Here is an example setting both video and audio bitrate targets: ffmpeg -i input.wmv -b:v 1.2m -b:a 120k output.mp4
batch file - ffmpeg conversion - keep audio bitrate ...
https://stackoverflow.com/questions/11196474/ffmpeg-conversion-keep-audio-bitrate
I'm using ffmpeg to extract the audio from different video formats (flv, mp4) and convert it to mp3. %~dp0ffmpeg.exe -i %1 -ar 44100 -ac 2 -ab 128k "%~dpn1.mp3". This works just fine. However, in my input files, the audio bitrate varies, and I want to adjust the output bitrate accordingly. Even by extensive Google searching, I didn't find any ...
constraints - FFMpeg and max bitrate - Stack Overflow
https://stackoverflow.com/questions/58095646/ffmpeg-and-max-bitrate
Show activity on this post. For a personal project, using AV1 codec, I have a bitrate constraint for a video to 88kbps, with choosen video bitrate at 66kbps and mono audio bitrate at 22kbps. I currently use this command: ffmpeg -i input.mp4 -c:v libaom-av1 -strict -2 -b:v 66150 -c:a libfdk_aac -ar 22050 -b:a 22050 -ac 1 -maxrate 66150 -bufsize 66150 -vf scale=720:-1 …
Resize and change bitrate with ffmpeg - Stack Overflow
https://stackoverflow.com/questions/45464788/resize-and-change-bitrate-with-ffmpeg
ffmpeg -i input_video.mp4 -vf "scale=1200:600" -b:v 10M output_video.mp4 There were two mistakes here:-v:b: the bitrate codec(b) and the stream selector(v for video) were swapped-vf scale: the filter command should be placed between quotes (you can also use the regular scale option instead: -s 1200x600)
FFmpeg: Extract Audio From Video In Original Format Or ...
https://www.linuxuprising.com/2019/11/ffmpeg-extract-audio-from-video-in.html
Extract audio from a video, using Ogg as the resulting container (it should auto-detect Vorbis as the audio format), with variable bitrate (VBR): ffmpeg -i myvideo.mp4 -vn -q:a QUALITY audio.ogg The QUALITY range is -1.0 to 10.0, with 10.0 being the highest quality, and 3 being default (with a target of 112kbps).
Convert MP4 to MP3 with FFmpeg - Ubuntu Buzz
https://www.ubuntubuzz.com/2020/01/convert-mp4-to-mp3-with-ffmpeg.html
By default, bitrate of resulting audio is 128kb/s. It's known that same audio with smaller bitrate has smaller file size. You can compress audio file size by reducing the bitrate. However, please note that smaller bitrate represents lower audio quality. To make it 64kb/s: $ ffmpeg -i video.mp4 -b:a 64K audio.mp3 To make it 32kb/s:
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