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H.264 in MP4 and ac3 sound track
https://avidemux.org/smif/index.php?topic=17197.0#:~:text=MP4%20specs%20don%27t%20allow%20AC3%20audio.%20Use%20MKV,an%20AC3%20stream%2C%20but%20its%20usage%20isn%27t%20common.
MP4 to AC3 convert audio files — FREE online converter
https://online-audio-convert.com/en/mp4-to-ac3/
An AC3 file is an audio stream that can be encountered as external soundtracks for films. You can download it separately and synchronize it with the movie file. The audio file contains 6 channels: upper and lower, front and rear, right and left, as well as low-frequency effects. закрыть.
MP4 to AC3 - Convert your MP4 to AC3 for Free Online
https://www.zamzar.com/convert/mp4-to-ac3/
MP4 to AC3 (Online & Free) — Convertio
https://convertio.co/mp4-ac3/
Set the overall output AC3 (Dolby Digital) audio bitrate. If set to "Custom", the usable (and recommended) range is ≥160 kbps. The maximum bitrate is 640 kbps. Set the number of audio channels. This setting is most useful when downmixing channels (e.g., from 5.1 to stereo).
AC3 to MP4 convert audio files — FREE online converter
https://online-audio-convert.com/en/ac3-to-mp4/
Its manufacturing company is Dolby Digital. An AC3 file is an audio stream that can be encountered as external soundtracks for films. You can download it separately and synchronize it with the movie file. The audio file contains 6 channels: upper and lower, front and rear, right and left, as well as low-frequency effects.
Adding AC3 Dolby Digital 5.1 multichannel audio to an MP4 ...
http://gigoblog.com/2013/06/30/adding-ac3-dolby-digital-multichannel-audio-to-an-mp4/
With the newly encoded file (with the audio you want to keep) selected, issue Command-J. Highlight the two audio tracks (Stereo and Surround) and copy (Command-C). Select the MP4 file into which you want to copy the new multichannel audio. Select all (Command-A) and ensure the scrubber is at the zero mark.
How to Convert AC3 Audio to AAC in MP4/MKV Video
https://www.videosolo.com/tutorials/convert-ac3-to-aac.html
AC3 audio can be applied in many video containers including MP4 and MKV. But, the compatibility of AC3 audio is poor, which means you may can't hear the sound when playing MKV/MP4 videos, especially on QuickTime, iTunes, as well as iPhone, iPad, etc. So, people are searching for a way to convert audio in MP4/MKV from AC3 to AAC, as those media devices …
MP4 video with AC3 multichanel – BrightSign Support
https://support.brightsign.biz/hc/en-us/community/posts/209960637-MP4-video-with-AC3-multichanel
You can use a free tool called TSMuxer (http://www.videohelp.com/tools/tsMuxeR) to convert your file (must already have ac3 audio in it) to .ts. You can also use this tool to mux a video and audio stream output from something like Adobe Media Encoder. Again, You must already have the files in the correct format e.g. m4v/m2v and .ac3
H.264 in MP4 and ac3 sound track
https://avidemux.org/smif/index.php?topic=17197.0
MP4 specs don't allow AC3 audio. I don't think that's the case. MP4 allows the inclusion of an AC3 stream, but its usage isn't common. A hardware media player that claims to play "MP4" files may not be able to handle it. But I can't see any reason why TCmullet can not use it in an MP4 for his own use.
AAC vs AC3: What’s the Difference and Which One to Choose?
https://www.videoconverterfactory.com/tips/aac-vs-ac3.html
AAC: Short for Advanced Audio Coding, AAC is an audio coding standard for lossy digital audio compression, a successor to MP3 but outshines MP3 in its performance(The higher compression efficiency gives AAC a better sound quality than MP3 at the same bit rate).It has up to 48 channels, yet it is often used in two-channel mode. AC3: Also known as Dolby Digital, AC3 …
General Knowledge of AC3 Format - Apowersoft
https://www.apowersoft.com/what-is-ac3-format.html
AC3 file format is a 6-channel surround sound which provides a total bitrate of 384 kilobits per second and it supports audio sample rates up to 48 kHz. You must use an amplified theater system that supports Dolby Digital to reproduce the full effect of AC3 track.
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