![]() ![]() There is no use to continue down the faulty chain, we need to find out why re-encoding AC3 to MP3 failed (likely because the number of channels was greater than two). I tried to use the following command: ffmpeg -i test.avi -itsoffset 4.0 -i test.avi -map 0:0 -map 1:1 -vcodec libx264 -r 25 -b:v 1268k -s. I tried to use avidemux, but no matter what value I enter in the delay box, the delay was STILL the same. The second was misinterpretation of the results of the first one. I have a video file in which the audio is delayed by about 4 seconds. Before recording audio Record sound from a microphone or an electric instrument Record multiple audio takes Record to multiple audio tracks Punch in and out of. Finally, I recomposed in Avidemux the converted video and the converted audio despite audio and video are of the same duration, the result is out of sync (and not by a fixed time shift).Īlready the first workaround was for sure unfounded and unnecessary. Export regions as audio files Move audio files used for audio regions Export MIDI regions Edit track parameters Record your voice or a musical instrument. mp3 with an appropriate program, then I "strecthed" the length of the audio to 31m32s with an appropriate filter. QuoteSo, as another workaround, I converted the. Quote from: Catorcio63 on September 03, 2019, 11:43:45 AMĭuration of raw audio streams is a guesstimate at best. Finally, I recomposed in Avidemux the converted video and the converted audio despite audio and video are of the same duration, the result is out of sync (and not by a fixed time shift). So, as another workaround, I converted the. Why? Is it possible to do anything about it? When I open the audio file in a player, I can see that the audio length is about 29m40s, i.e. TS file into a video and audio stream first. The workaround for the first shortcoming is to use a demuxer to split the. TS file (will cause a A/V shift) and it can't create an output file larger than 2 GB. ac3 file, using Avidemux Audio > Save audio. AVIdemux is the most versatile editor but it has two important shortcomings it can't properly read a. So, as a workaround, I extracted the audio into an. Unfortunately, Avidemux does not allow to re-encode the audio from ac3 to MP3 (please provide for it, if possible). In Avidenux, relevant properties info for the audio are: codec AC3, duration about 31m32s (about the same as the video, giving up milliseconds).Īs the video is big (2.5GB), I want to rencode it (I did that many times with other videos in the past). The only processing that works in copy mode is audio shift. I have a source video (created with Avidemux), where audio and video are perfectly synchronised. In Copy mode, Avidemux will just copy the audio source (external, internal, etc) to the output file. Lately I incurred in the following issues. There is some useful stuff at which still applies though.I use Avidemux since many years to edit videos and I am pretty happy with it. There is no such thing yet, unless you write one. If it's not, you could use Avidemux to create a MP4 file from. It should generate a MKV file, play it and look if the audio is out of sync. You could select several options but just to try click tell it where you want the new file and click 'Start muxing'. QuoteWhere can I find a full explicit tutorial guide How to Use Avidemux? Most of the video tutorials on youtube are poor when it comes to the nity-grity points. Select the first file you want to join, and then click in 'Append' to add the next files. Please pay attention to that "Shift" checkbox below the "Audio Output" label in the codec widget of Avidemux. Can Avidimux fix it and make the audio faithful to the moving picture? QuoteI have another mp4 video with the audio very slightly out of sync with the picture. Save the audio to a 16 bit PCM (.wav) file using a suitable video player (mpv or vlc), edit it with a suitable audio software (I wonder if Audacity could help here), then load the resulting audio file as external audio in Avidemux. Quote from: vinckles on June 22, 2017, 01:21:33 PMĬan Avidemux software filter the hiss out or play it down, so the audio will be clearer? ![]()
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