Audio Codec 3 or Advanced Codec 3 or Acoustic Coder 3 - names used for Dolby Digital audio compression technologies.
Questions tagged [ac3]
28 questions
15
votes
5 answers
Convert MKV with DTS sound to MP4 video with AAC or AC3 audio
I've got a 4.3 GB 720p movie and want to convert this MKV with DTS sound to MP4 video with AAC or AC3 audio.
I sometimes get:
ffmpeg: unrecognized option '-c:v'
…and:
aac unrecognized
¬and other similar stuff.
I want this movie to have small size…
dale
- 259
7
votes
2 answers
How can I split the 5.1 audio channels from an AC3 file into individuals streams (preferably on a Mac)?
I have a file that I've pulled from a DVD that is apparently in AC3 5.1 format. The extension is .AC3 and it opens an plays in QuickTime, VLC etc.
What I want is each individual channel in a separate file, but I can't seem to find any tools that…
Drarok
- 247
4
votes
0 answers
How to remap channels of AC3 stream within .mkv or .mp4? (ffmpeg, 3f2m/lfe - > 3f2r/lfe)
So this is my problem, I've backed up quite a number of DVDs and a few Blu-Ray discs to .mkv files for archival purposes, and for my plex server. I used:
x264 for video
ac3 for audio (for compatibility's sake, Dolby Digital is supported by just…
Vlad
- 41
2
votes
1 answer
Convert movie audio from ac3 to mp3 ? (no video conv.)
Possible Duplicate:
Convert mp4 to mp3
Hello everybody,
Could you please suggest me a quick way to convert just the audio of movies from AC3 to MP3 ?
I would like to get a new Avi with the same video, but different audio (mp3).
OS: windows 7.
(I…
iAsk
- 779
2
votes
1 answer
How to concatenate audio files in Adobe Audition 3?
I have about 200 AC3 files that I want to import into Adobe Audition 3 using the AC3Filter plug-in.
If I select all files and drag to session area, I get one per track, but I want them all concatenated one after another.
These AC3 files came from…
WilliamKF
- 8,058
2
votes
0 answers
ffmpeg does not capture ac3 audio from RTSP stream
I am trying to capture video and audio from an RTSP stream using ffmpeg-4.1.3-amd64-static. The stream is produced by VLC, and contains H.264 video and AC-3 audio. I can play the stream using VLC and both video and audio work perfectly, but the…
Richard Hussong
- 121
1
vote
0 answers
MPC-HC + AC3filter playing too fast with DTS-HD MA
Video plays too fast, as if fast forward was enabled.
It used to happen with VFR MKV video, and was fixed with View > Render Settings > Presentation > Enable Frame Time Correction.
This week this issue started to happen again, and I blamed VFR and…
Hikari
- 327
1
vote
1 answer
Why is FFmpeg -acodec ac3 not in sync as the original audio?
I am just trying to change the audio from AAC to AC3 and it creates a video where the audio is slightly out of sync. If I watch the original video then it is perfect.
I have read some posts where the describe this situation being similar to…
kronus
- 111
1
vote
2 answers
How to AC3-encode audio and send it through HDMI on Win10?
For reasons°, I have my PC plugged into my TV via HDMI, which is connected to my AV receiver via optical cable. Since my TV is only detected as 2 channel device, and stuff like games usually don't encode audio (always raw PCM), I can't get surround…
DanMan
- 232
1
vote
2 answers
Converting AC3 audio to AAC in Audacity
I have a number of Music Videos I am converting from DVD to MP4. Unfortunately I find the audio levels are all different. It is easy enough to get similar audio leves by using Audacity but would prefer to do the conversion AC3 to AAC at the same…
Tekno Geekz
- 81
0
votes
1 answer
With FFmpeg, how do I normalize AC3 to stereo WAV file?
I'm converting 5.1 AC3 file to stereo WAV with FFmpeg:
ffmpeg.exe -i "D:\Project\AC3.ac3" -ac 2 "D:\Project\WAV.wav"
How do I normalize the file?
Is there a way to know how much I can increase the volume before clipping occurs?
How do I increase…
ClearSky
- 39
0
votes
1 answer
Flash Media Server and Surround 5.1
Is it possible to get a flash application streaming surround 5.1 sound?
Does Flash Media Server support Surround sound ac3 encoded 5.1 dolby surround, and if so, can i stream it via rtmp stream to a flash player that can actually play this on the…
Andreas
0
votes
1 answer
Re-encode AC3 5.1 audio with variable bitrate using FFmpeg
Does the AC3 audio format support variable bitrate encoding?
If so, is it possible to use FFmpeg's -vbr option to achieve that?
I'd like to avoid converting from 5.1 to a 2-channel stereo because I've read that FFmpeg doesn't produce good results…
GetFree
- 3,230
0
votes
1 answer
How to play DTS audio file in Sony Bluray player?
I have a Sony Bluray Player Model: BDV-E3200 (Asian).
I have 5.1ch audio files with .dts extension (DTS format) in my PC.
How to play the .dts audio files on the bluray player?
I have these methods to play: USB Drive, Network via DLNA (Serviio,…
Harish R
- 71
0
votes
1 answer
Convert MPG w/ AC3 audio to something else - on a Mac
I'm helping with a small volunteer media team, and they have several .mpg videos that don't appear to have sound when played in QuickTime, iTunes, Real Player, etc, on the local Mac machine.
I was able to hear audio after transferring one of the…
anonymous coward
- 890