0
votes
0answers
22 views

Put bitrate atom into MP4 container

When iTunes encodes audio with the iTunes Plus setting, it shows 256 kbps as the bitrate, but actually these are VBR files. For files that were not encoded with iTunes, what tool can modify the tags ...
0
votes
0answers
109 views

DVD Rips not plying AC3 5.1 Audio in iTunes

So I have been trying for months now to get iTunes to play my dvd rips with the AC3 track. I have 2 audio tracks on all my files, just like how you would download a movie from the iTunes store. One ...
9
votes
2answers
5k views

How to extract an audio track from an MP4 video file on Windows?

Having an MP4 video file I'd like to get just the audio track of it. What makes my question different from the others is that I don't want to convert it (like to MP3 or anything) - I'd prefer to keep ...
1
vote
2answers
241 views

Appending MP4s loses sound from second file

When I try to join two MP4s together using ffmpeg, the first file plays fine and has sound, but the second one loses all sound and becomes a lot choppier. I encoded both the files from MKVs using ...
4
votes
1answer
2k views

How do I replace the audio in an MP4 file without re-encoding?

I've got a video in an MP4 container that I would like to replace the audio track in (not add another audio stream to, nor convert the audio format of). Someone elsewhere online suggested to use ...
1
vote
1answer
676 views

How to merge an image into an audio file?

I am trying to merge a thumbnail-size (104x80) image into an audio file (M4A). I want it to be played in JW Player, but it doesn't seem to support thumbnails. I have tried it in VLC Player, but the ...
0
votes
1answer
43 views

Audio file tagging/renaming

I would like to properly tag my music collection in the following way: Filename: Artist - Song Title - Key(Original Key) - BPM - Genre Tags: The tags match above(each token above is a id tag). Is ...
0
votes
1answer
40 views

Audio File - No Album Property [duplicate]

Possible Duplicate: Windows: What software do you recommend for editing MP3 ID3 tags? I have an audio file with no Album attached to it. Figured I could go into the Properties + Details and ...
3
votes
3answers
607 views

How to apply audio track to a mute h264/mp4-video losslessly?

I have a MP4/h.264-video with no sound. With ffmpeg or similar, how can I apply an audio track to that MP4-file without degrading the quality of the video (i.e. without recoding the video-track)? I'd ...
4
votes
1answer
3k views

accurate cutting of video (+ audio) with ffmpeg

I want my website to allow users to accurately create their own clips from a source video I provide. I have a source video file that I first want to convert to something suitable for a website: ...
-1
votes
1answer
2k views

How I can normalize the sound on a video (mp4) file? [closed]

I have a video(mp4) that I would like to normalize the sound on. Any suggestions?
3
votes
2answers
1k views

How to play MP4 file with AAC 5.1 through S/PDIF

I have a laptop with Windows 7 x64 and a Sound Blaster X-Fi Surround 5.1 Pro. I connect the HDMI output of the notebook to my LCD-TV and the external soundcard to my home-theater receiver through an ...
1
vote
1answer
667 views

MP4 video - edit audio track

I have recorded some nice sport videos with mz GoPro HD action camera. I would like to edit the audio track. I dont want to get rid of the whole audio track - just erase small parts (e.g. ...
1
vote
2answers
1k views

How can I play raw audio/video tracks extracted from mp4?

I used mp4creator -extract to get the raw audio and video tracks from an mp4 file. What players can I use to play the raw tracks?
29
votes
8answers
23k views

Extracting audio from MP4 video into MP3

I downloaded a few MP4-encoded videos from which I'd like to extract the audio stream into MP3 files for easy listening on my digital player. Most likely, VLC can do this, but the instructions ...
9
votes
9answers
667 views

Convert mp4 to mp3

I would like to convert mp4 (video included) to mp3 (without video). what is the best way of doing this apart from using audacity (or similar software) and performing manual conversion (recording as ...
1
vote
2answers
11k views

How do I add another audio stream to an MP4 file?

I've got an MP4 video file and I want to add another AAC audio track to it. I've tried YAMB and MeGUI (frontends for MP4Box) and it plays correctly in Zoom Player, but it picks the wrong track in WMP ...