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audio - Properly downmix 5.1 to stereo using ffmpeg ...
https://superuser.com/questions/852400/properly-downmix-5-1-to-stereo-using-ffmpeg
Downmixing a 5.1 channel audio stream to stereo with a custom mix algorithm If you want a more high quality downmix, or you absolutely must include the LFE stream into your output, you can use FFmpeg's audio filter switch ( -af) to downmix the audio using a custom mix formula. Downmixing with the ATSC formula (Gregory's answer)
How to overlay/downmix two audio files using ffmpeg ...
https://stackoverflow.com/questions/14498539/how-to-overlay-downmix-two-audio-files-using-ffmpeg
The amix filter helps to mix multiple audio inputs into a single output. If you run the following command: ffmpeg -i INPUT1 -i INPUT2 -i INPUT3 -filter_complex amix=inputs=3:duration=first:dropout_transition=3 OUTPUT. This command will mix 3 input audio streams (I used two mp3 files, in the example below) into a single output with the same ...
ffmpeg: Audio downmix metadata - doxygen documentation ...
https://fossies.org/dox/ffmpeg-5.0/group__downmix__info.html
About: FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video (including the audio/video codec library "libavcodec"). Fossies Dox: ffmpeg-5.0.tar.xz ("unofficial" and yet experimental doxygen-generated source code documentation)
ffmpeg downmix 7.1 -> 5.1 - Doom9's Forum
https://forum.doom9.org/showthread.php?t=181635
ffmpeg downmix 7.1 -> 5.1 Audio encoding
FFMPEG transcode/downmix audio stream > 2 audio output ...
https://discussion.mcebuddy2x.com/t/ffmpeg-transcode-downmix-audio-stream-2-audio-output-streams-fails/292
I am using the H264_NVENC encoder and thus must utilize ffmpeg for this function - namely to transcode/downmix the single DTS 5.1 source audio stream to both an AAC2.0 and AC35.1 output audio streams. I have configured the profiles.conf with the appropriate ffmpeg audio config to provide for this function:
Downmixing 5.1 to 2.0 using ffmpeg - VideoHelp Forum
https://forum.videohelp.com/threads/398232-Downmixing-5-1-to-2-0-using-ffmpeg
Try my clever FFmpeg GUI. It contains a special command line for downmixing 5.1 to stereo. Load your video, click Main, click Modify Audio Stream, click Continue, select the output, select the bitrate, click 5.1 to 2 (Channels), click Convert. Done. If you like the new audio file, remux it with the video. Quote 28th Jul 2020 09:09 #3 Hoser Rob
r/ffmpeg - Adding downmix audio track while keep all ...
https://www.reddit.com/r/ffmpeg/comments/rppp0i/adding_downmix_audio_track_while_keep_all/
Adding downmix audio track while keep all original tracks. Hi guys, I'm using Tdarr and the Migz5ConvertAudio plugin to try add stereo downmix tracks to my movies. The plugin works well however uses "-ac 2" which unfortunately has low volume. I would like to add center mix volume as well as LFE, which means I have to use the pan filter and can ...
Downmix AC3 5.1 to 2.0 (Stereo) : ffmpeg
https://www.reddit.com/r/ffmpeg/comments/i9m3vh/downmix_ac3_51_to_20_stereo/
Hi, I am new to ffmpeg, I've been trying to downmix an MKV with AC-3 5.1 audio to 2.0 stereo, as on my LG TV the voice channel is inaudible while music, gunshots and explosions leave my ears ringing. I believe this is due to a lack of a centre speaker on …
FFMPEG audio channel manipulation - Flaeri's tech talk
https://blog.otterbro.com/ffmpeg-audio-channel-manipulation/
If you've ever tried to downmix 5.1 audio into a stereo mix, typically using this: ffmpeg -i 6channels.wav -ac 2 stereo.wav Then you know that there are certainly some pitfalls there. By default it just straight up drops the LFE (low frequency ) channel. The center channel also dosent seem right by just pushing it thru -ac 2
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