Questions tagged [sync]

Abbreviation for synchronization

29 questions with no upvoted or accepted answers
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Video and Telemetrics not in sync

I've recorded a video with Raspberry Pis Camera Module. On top of that I've recorded GPS data including the GPS Timestamp and made my own data file. Using Dashware I've tried to get the video and ...
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2answers
270 views

Capturing VHS tapes

I bought a Video-2-PC DIY Video Capture Kit which includes a copy of ArcSoft Showbiz 3.5, which I found to be too restrictive and low quality, and VirtualDub 1.9.11.0, which I eventually got to grips ...
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2answers
1k views

FFmpeg: Align Video & Audio of Desktop Capture

I am using FFmpeg's built-in gdigrab & dshow to record the display & audio of my system. I am encoding to uncompressed H.264/AVC video & uncompressed PCM/WAV audio. I had been having two ...
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0answers
39 views

Synchronize Video / Audio with different numbers of audio channels

I have a main video recording and audio recordings from 2 phone-based lav mic's. One subject's lav recording has 2 audio channels and the other has 1. (The video also has 1 audio channel) I can ...
2
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0answers
279 views

HyperCam2 video out of sync, ffmpeg throws video out of bounds

I've recorded my over 2h presentation using HyperCam2 but output video is totally out of sync with audio. It looks like video is 2x faster than audio so I have 'Thanks for watching' slide in the ...
2
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0answers
377 views

recording multiple video feed with timecode/genlock in sync with motion capture system

So, I am looking into recording 2 HD video streams, as reference for our mocap studio. The thing is that I don't know much about video gear, and it must be fairly cheap. I have asked Vicon (mocap ...
2
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0answers
202 views

segment does not contain sync frame

Whenever I split a video using Apple's mediafilesegmenter, using the following command: medifilesegmenter video.ts -t 10. I get the following error for each segment except the first: segment does not ...
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0answers
24 views

How to sync audio with kmsgrab video stream?

I am trying to sync audio from the pulse stereo output with the video from kmsgrab. If I use the video stream as stream one the video is choppy. The command that works best a the moment is: ffmpeg -...
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0answers
13 views

Seeking for advice with dealing with out of sync audio

I have a bunch of videos from games caputured with NVidia's Share. They are trimmed using VLC. I have one video that is 1 minute and 38 seconds long (a lot longer then the others). If I play it in VLC ...
1
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0answers
174 views

Adobe Encoder Desyncs Video/Audio (MTS to MP4)

I've been trying to transcode an MTS (recorded on a Panasonic) to MP4 with Adobe Media Encoder. The audio/video has consistently gone out of sync. I've matched the source, gone over all the settings, ...
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0answers
109 views

How to sync drifting audio(s)?

One audio source is the camera, (its sound is more for reference 'cause the distance is approximately 10 meters from the source). The second audio source is a mixing table getting mics. The total ...
1
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0answers
136 views

project 3 separate videos synchronized

For an art installation I need to set up a synchronized projection of 3 separate videos: hardware 1 PC with Windows 7 NVIDIA GeForce GTX 980 with 4 simultaneous outputs 3 projectors 1920 x 1080 (I ...
1
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0answers
480 views

Is there a container format in ffmpeg that supports non-monotonous timestamps?

I have recorded over-the-air digital TV broadcasts from my own antenna. Due to reception blips, the MPEG-TS file can have corrupted packets, and thus corrupted timestamps, in the middle of a ...
1
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0answers
925 views

How can I mux video and audio from separate sources that're at different frame rates?

I'm having trouble muxing the video from one source with the audio from another because the audio drifts over time. As I mentioned in the title, the sources are at different frame rates, the video's ...
1
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0answers
1k views

Audio drift after uploading to YouTube?

I recorded myself playing some games and then uploaded the videos to youtube. I noticed that after youtube finished all processing and made multiple resolutions available that the audio and video ...
1
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0answers
248 views

How to sync the dubbed audio to make a dual audio .avi

I have a show with the original audio, XviD encoded with mp3 in a .avi. The local TV has started broadcasting the show with the dubbed audio. I captured some of the shows off of the TV broadcast, ...
1
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0answers
36 views

iPhone 5s and Premiere Pro Cs6

Using an iPhone 5s to film short talks, I run the video files thru Handbrake to settle sync issues that arise when I upload videos into Premiere Pro Cs6. Unfortunately, this does not fix the problem, ...
1
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1answer
2k views

Setting timecode in Premiere Pro by using file creation date of clips

I have filmed a small rock concert with 4 cameras. One of the cameras was filming short sequences (about 3 mins Clips), then paused for a few minutes and than resumed. Now it is quite a lot of work ...
1
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0answers
1k views

FFMPEG Sync Audio & Video From Pi Camera & USB Microphone

Posted this in the Raspberry Pi community, but it got closed for being off topic. Reposting in the hopes that it is now in the right place. I am trying to stream low-quality audio & video from my ...
0
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0answers
14 views

How can I record video over an existing video in an “overdub” fashion, keeping them perfectly in sync?

I am trying to figure out if there some way to for me to "overdub" video. What I mean by that is, I want to be able to record a video of me playing an instrument. Then I want to play back ...
0
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1answer
14 views

Some parts have audio out of sync after a master export

I have a project in Final Cut Pro X, that plays as I expect in the Final Cut, but when I export in to h264 there is a part where audio is playing slightly in before the video. Such part is present on ...
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0answers
6 views

Audio/Video “Drift” on Mac (even when recording them using separate apps)

I have an older version of Screenflow (ver 6.x) and I find that it's getting so that my videos are falling out of sync with the audio (only noticed this lately, not sure if it is tied to newer ...
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0answers
13 views

Auto-combine and sync video of one file, with audio of another

⌘ On Mac, How do I automatically combine 2 files with similar video data, using: 1 file with good video, 1 with good audio, and have them auto-sync via matching video frames? 📄 Provided files Say I ...
0
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0answers
80 views

How to compare the audio/video synchronization in video clips?

I have two video clips of the same music video. Both are made of the same video and audio tracks but of different sources and quality. One of them is a rip from an officially released media, so the ...
0
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0answers
214 views

Audio and video out of sync after hstack/amerge

I am using ffmpeg to combine two videos in one side-by-side. This is a recorded 1:1 video-call (WebRTC); each stream recorded separately by the media server. I've come up with this command, which ...
0
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0answers
15 views

Post-production editing audio/video out of sync

I am trying to add two videos using ffmpeg and the output video/audio is out of sync (and fast forwarded). Goal is to put intro.mp4 before the original file clip.flv My approach is to Change the ...
0
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3answers
586 views

How to solve audio/video sync issue on my mp4 screenrecording?

I'm relatively new to video editing and struggling to solve a problem whereas the video (i.e my lips) is out of sync with the audio (i.e my voice). The beginning of the video is fine but by the end ...
0
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0answers
317 views

Is there command line software that syncs two audio tracks

I have a bunch of separately recorded audio and video tracks that I need to sync. By sync (synch?) I mean align the two tracks so that the audio matches as closely as possible. The two tracks are ...
-1
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1answer
17 views

Absolute Beginner Looking to Produce a Primitive Music Video

I am a total beginner to video. I don't even know what kind of camera I'll be using. (I'll have to borrow one.) I am just looking for an overview of what the general process will look like. I have ...