[FFmpeg-user] Audio delay on part of video

[tasos]

Thank you for the info!

On 28-Apr-25 12:32 PM, German Geraskin wrote:
> "To delay the audio stream" means to insert several audio samples of
> silence into the audio stream.
> It is quite easy to do using [setpts
> filter](https://ffmpeg.org/ffmpeg-all.html#setpts_002c-asetpts).
> But this works only for the whole audio track.
> 
> If you need to add delay in the middle of the audio track, then
> probably you should do the following steps:
> - extract and save the first part of audio track (for example, using
> [-t option](https://ffmpeg.org/ffmpeg-all.html#Main-options))
> - extract and save the second part of audio track (for example, using
> [-ss option](https://ffmpeg.org/ffmpeg-all.html#Main-options))
> - generate desired number of audio samples containing silence (for
> example, using [anullsrc
> filter](https://ffmpeg.org/ffmpeg-all.html#anullsrc))
> - concatenate the first part, the silence part and the second part
> (for example, using [concat
> filter](https://ffmpeg.org/ffmpeg-all.html#concat-3))
> - mux original video and newly created audio tracks in the final file
> 
>>> Am 25.04.25 um 20:47 schrieb tasos:
>>>> Hello.
>>>> I would like to ask if it is possible to delay the audio streams of a video , but for a specific time range.
>>>> Something like using -ss -to combined with -itsoffset.
>>>> More specifically from half-till the end of the video.
>>>> Thanks!
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> 
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".