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Questions tagged [audio-video-sync]

Questions related to synchronization between audio and video during creation, transmission, reception and playback of content with both audio and video.

Audio to video synchronization (also known as audio video sync, audio/video sync, AV-sync, lip sync, or by the lack of it: lip sync error, lip-flap) refers to the relative timing of audio (sound) and video (image) parts during creation, post-production (mixing), transmission, reception and play-back processing. When sound and video have a timing related cause and effect, AV-sync can be an issue in television, videoconferencing, or film.

More details at http://en.wikipedia.org/wiki/Audio_to_video_synchronization

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RecordRTC issue - stream only shows timestamp?

I'm rather new to the whole WebRTC thing, and I've been reading a ton of articles and about different APIs about how to handle video recording. It seems the more I read the more confusing the whole thing is. I know I can use solutions such as Nimbb,…
chaoskreator
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Presentation time in ALSA

I am receiving IEEE 1722 standard ethernet packets from a machine over the network. These packets contain a 'timestamp' field which can be used by the receiver to decide when to play the audio data using ALSA subsystem. I want to know whether which…
Sumeet_Jain
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Join AVCHD .mts files on linux

I have a Lumix camera which, like most new cameras, record video in AVCHD format. The files get segmented into 2 or 4 GiB segments because of the limitations of the filesystem used on the memory card. When I transfer the files to my linux computer…
Marcus Sundman
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How to mix audio with video in ios?

Im trying to mix one audio file with Video file, but i got an error. " Export failed: The operation could not be completed " Please correct this code if there is an error. My Code: -(void)CompileFilesToMakeMovie { AVMutableComposition*…
Anand
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Audio/Video synchronization issues using samplegrabber filter

I am using DirectShow for a movie playback. I modify video/audio data and render everything myself in my app. Therefore, I am using SampleGrabber filters and NULL renderers. The problem arises when I rewind the movie (using IMediaSeeking interface)…
Dalamber
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MAX MSP // How can i controll visualisation with incoming audio signal?

do anyone work with MAX MSP and can help me? how can i control videosignal with incoming audio signal. I would like to swith video input signal betwen 2 cameras, when the music changes. How can i read a frequency or bpm and by changing send signal…
Oleg PeP
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