Questions tagged [audio]

Audio refers broadly to the information, be it acoustic or electronic, entering, traversing, or exiting some medium.

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ffmpeg - Copy the first 2 tracks of audio to new 6 tracks so all 8 tracks contains audio from the first 2

I have a 2 audio track mxf file and need to clone the video but create 8 audio tracks. The tracks 1 and 2 should be copied into 3 and 4, 5 and 6 and 7 and 8. Some files that I'm dealing with are 4 ...
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3 views

Should this audio file have ogg or opus as file name extension?

bash $ mediainfo myaudio.opus General Complete name : /Users/qaz/myaudio.opus Format : Ogg File size : 3.52 ...
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1 answer
14 views

Video editing software that automatically performs search-and-replace

My employer owns a number of video recordings that discuss a company product. Many of those videos were created using Camtasia, a commercial video editing software product. The video recordings ...
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1 answer
70 views

Easy way to create AudioGrams, ideally with waveform & Subtitles / Closed Captions with progressing marker on them? Free to start with?

Easy way to create AudioGrams, ideally with waveform & Subtitles / Closed Captions with progressing marker on them? Free to Start with? Easy way to take my writings; quotes, poems or short ...
2 votes
1 answer
228 views

Import secondary audio track along with video mpg into Adobe Premiere Pro

I've been trying for hours to import an mpg along with its secondary audio track into Adobe Premiere Pro. Only the primary track is imported. I know this mpg has two tracks because I can play the ...
0 votes
1 answer
16 views

Why can't I render these videos without audio being out of sync?

I've pulled out all guns to merge 13 episodes into one video, failing and staring at a brick wall. I've rendered on KDenlive in Linux and Davinci Resolve on Windows. I even screen recorded the whole ...
0 votes
1 answer
110 views

FFMPEG - Creating script to convert a video into audio file (or anything related really) + diverses questions

Good day everyone. Im making my babysteps into ffmpeg, and so far this tool has been really helpfull. Anyway. Im currently using this line as a convertion basis : ffmpeg -i name.mov -c:v libx264 ...
0 votes
1 answer
650 views

Change the speed of clip based on sound track in Premiere pro

We are currently creating a virtual choir project and we have the tracks from the people already. I am the video editor, we have a sound designer as well. He is making the rythm of the sound perfect ...
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11 views

Live Video: no weird sounds -- why? [migrated]

I was watching a music video of a live performance. At one point, the singer popped the microphone from the stand and later put it back. Both of these should have produced some sort of sound, but of ...
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2 answers
266 views

Audio level goes up and down in rendered output [After Effects]

I render my AE project using Media Encoder, but when I check the output, its audio level clearly changes and go up at some parts and down on other parts! and its not consistent at all. The thing is ...
0 votes
1 answer
91 views

FCP loses second audio track on import

I have mp4 files with two stereo audio tracks, one with voice, and the other with game sounds. Unfortunately, when I import into Final Cut Pro, and then expand audio components, I only get the first (...
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2 answers
71 views

Append part of the audio at the end of another audio

With audio files A and B: A : |--- Some content ---|--- Extra content --- | B : |--- Some content ---| Assume the end of B is where the start of the extra content in A. I want to append that extra ...
0 votes
1 answer
744 views

How do I use get audio from multiple screens using split-screen in Filmora

I am using Filmora to create videos and would like to have several videos put together via split-screen. I am able to do this, but I would like the audio from each of those split screens to come ...
0 votes
1 answer
37 views

Audio not detected with Transparent Video Formats (Quicktime - PNG/QtAnimation- AAC/PCM)

On importing a transparent .mov file (Quicktime - PNG/QtAnimation- AAC/PCM) , the audio is not detected by the Videoeditors (Powerdirector17 < Davinci Resolve doesn't support the above format> )....
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25 views

FFmpeg - Take 128 Channel WAV and Transcode to MKV with 128 Discrete Mono Tracks

I have a use case where I need to take individual WAV files with 128 channels in each one and output corresponding MKVs with each source channel as its own discrete mono track. I've been playing ...
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1 answer
101 views

imported a movie now it has two audio tracks

ok, so i ripped a dvd with handbrake, converted it to an mp4, i import the mp4 to kdenlive and kdenlive is doing this thing where it's giving me two audio tracks, so at first i thought it was a right ...
1 vote
1 answer
253 views

Too much bass in desktop sounds with a headset, but not during recording, only afterwards

I recorded some video footages with my voiceover, both with Fraps and OBS. (Also streamed with the latter) While I was playing everything was fine. (I played with a headset) When I played the videos ...
0 votes
3 answers
1k views

After 5 minutes, audio dramatically goes out of sync for rest of video. Shifting that audio section around fixes problem only for a few seconds

At the 5min:12sec mark in this Facebook Live video, there is a glitch/freeze. The audio goes out for a few seconds, and then comes back in. But when it comes back in, it is terribly out of sync. I ...
0 votes
1 answer
20 views

using ffmpeg, how to concetrate multiple videos into one, but audio will be sync per video in linux?

using ffmpeg, using ffmpeg, how to concetrate multiple videos into one, but audio will be sync per video in linux? I have tried async, vsync, atempo but i dont know how make ffmpeg to autosync audio ...
0 votes
1 answer
1k views

how come my editor(vsdc editor) only has audio but not any video footage

My audio is great, but when I export the video it doesn't show-only a black screen. Any suggestions?
1 vote
1 answer
56 views

audio jumps to next frame rate - premiere pro

I have the following problem: 2 video clips with two audio clips. I try to synchronize them with the option "show audio units" to make them perfectly alligned. The problem is, when I select both video ...
0 votes
1 answer
107 views

Adding additional audio to a synced clip and having that sync via audio in Final Cut Pro X

In FCPX I can select a video and audio clip and do "Synchronize Clips" using the "Use audio for synchronization" option. Now I have a new clip in the browser on which I can say "Open Clip" and then ...
0 votes
1 answer
757 views

Question about ffmpeg's overlay variable t

I've got an ffmpeg command that overlays a line on a video and moves it from left to right while the video plays: ffmpeg -i clip.mp4 -i line-with-transparent-white.png -filter_complex "[0:v][1:v]...
0 votes
1 answer
19 views

Recording webcam got too big file in 12 hours, spliting the file takes much less space

Sorry I do not give better details, I am too new on this this weekend we left OBS recording a small portion of the screen, with audio, for an university experiment (we have a software that analize ...
2 votes
2 answers
11k views

Extract all audio channels as separate wave file from a multichannel file

I have this file, and would be cool use ffmpeg for extract all audio channels to separate files.. I know how to extract a single channel at time in a way like: ffmpeg -i input.mov -map 0:1 -c:a copy ...
2 votes
2 answers
13k views

Certain audio tracks not rendering

I'm not sure the best way to explain the scenario so I'll do my best, please don't hesitate to ask if I'm missing something obvious to help build the picture. My problem is I've edited a video in ...
1 vote
1 answer
24 views

Adobe Premiere Pro clip audio works in Source panel but not timeline

I have a Adobe Premiere Pro CC 2017 project with an mp4 in the sequence. That mp4's sound plays fine in Source Monitor. And its sound plays fine if I right-click the mp4 in the Project panel and ...
0 votes
1 answer
88 views

How do I calculate the adjustment to a target dbFS? What's the formula?

For example, my peak volume is -4dB, but I want to increase it to -1dB (as per youtube recommendation). In the mixer master volume, which increase should I set? +3dB does not produce a -1dB peak. ...
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0 answers
24 views

How to add audio every x time [ffmpeg]

I have a file video.mp4 and file audio.mp3, how to with the audio inserted every 2 seconds of video i try it but doesn't seem right. Please help me! ffmpeg -i video.mp4 -i audio.wav -filter_complex &...
1 vote
1 answer
375 views

ffmpeg: How to avoid "start: 0.033333" when extraction audio from mp4

When extracting audio and video separately from a mp4 and recombining again ffmpeg -accurate_seek -ss 30 -t 10 -i input.mp4 -vn output-audio.mp4 ffmpeg -accurate_seek -ss 30 -t 10 -i input.mp4 -an ...
0 votes
1 answer
23 views

how to extract segment of input.mov, loop an image at the end, and then replace audio with segment of audio file?

I've got a movie that I captured with my iphone. Let's call it input.mov. Having edited this video using my iphone, it appears to have dimensions of 1370x970, at least according to the iphone's ...
0 votes
1 answer
64 views

Is there "audio pitch compression"?

There are plenty of guides for shifting audio pitch, but is there a way to compress audio pitch? I have a video that has a voice with a very low pitch and a voice with a very high pitch. I can shift ...
0 votes
1 answer
432 views

DaVinci Resolve 16 playback sound not working (Linux)

With default configuration there's no sound present. I've tried different speaker configuration without any difference.
0 votes
1 answer
113 views

Using ffmpeg audio filter loop instead of stream_loop as stream_loop adds a delay

I want to loop an audio file infinitely. The -stream_loop -1 option adds a small pause / jerk between the loops, as also mentioned in this question with no solution. The same question mentions that ...
0 votes
1 answer
385 views

Screen recorded videos have audio sync delays in Premiere Pro

I imported several MP4 screen recordings (using Windows Game Recording) into Premiere Pro to edit together, but I noticed all but one of the clips in the timeline have unsynced audio issues. After ...
0 votes
1 answer
335 views

ffmpeg add loop to this line of code i have

windows 7 64 bit running latest ffmpeg command-line. ffmpeg -i "song.mp4" -i "2.mp3" -filter_complex "[1:a]adelay=3000|60000[1a];[0:a][1a]amix" -vcodec copy -y "output1.mp4" I want to loop the 2.mp3 ...
0 votes
1 answer
88 views

opus decoding in ffmpeg: how to pass target sample rate and ensure libopus decoder?

As I understand, ffmpeg compiled with --enable-libopus has two opus decoders: builtin and libopus. I am decoding an opus file to wav. How can I know which opus decoder is being used by ffmpeg? ...
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1 answer
270 views

Audio from Motiv video file is offset wrong in Davinci Resolve

I am using an iPhone (iOS 14.6), Shure Motive Video (1.5.0.229) and Davinci Resolve (Mac, 17.2 Build 11) to capture video. When I play back the video file in Quicktime (Version 10.5 (1086.4.2)), the ...
0 votes
1 answer
144 views

Applying Audio Effect to Entire Project

I'm working on a project made of hundreds of short video clips taken over the past year. Some indoor clips, some outdoor, some in a quiet environment, some in loud, etc. Naturally, they all have ...
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0 answers
44 views

Why is ffmpeg modifying my 5.1 channel layout?

I have an AC3 sound file in 5.1 surround, and an MOV file with no sound. I am using FFMPEG to add the sound to the MOV file, and although it works succesfully, for some reason it is modifying the ...
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1 answer
432 views

No Audio In VSDC editor

I finished recording a multi audio track recording on obs, and it has no sound (in the editor, as a video its fine.) I don't understand why.
0 votes
1 answer
6k views

FFMPEG - 5.1 EAC3 encode output quality

I have PCM Wave source files that are 5.1 surround. My goal is to convert this to EAC3 at 192k per Apple recommendations. Here is the MediaInfo of my source media: General Complete name ...
2 votes
2 answers
2k 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 ...
1 vote
1 answer
465 views

ffmpeg - How do I modify Channel Layout labels only on 8 separate mono audio tracks?

I have a QuickTime .mov file which has 1 video track (ProRes 4444 XQ) and 8 mono audio tracks, which combined make up the 5.1 surround mix and a stereo mixdown. Per delivery requirements, I need to ...
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1 answer
115 views

Can FFmpeg perform audio phase subtraction?

I can do audio phase subtraction in Adobe Audition like so: How can I do this with FFmpeg? Is it possible? I've googled for audio phase subtraction, and looked at ...
1 vote
1 answer
21 views

2 video files, one has the audio with 15FPS, the other has the video with 5FPS, audio is out of sync

I'm trying to sync the audio and video of 2 different files, one is a 15 FPS webcam stream with audio and the other is a screen share with 5 FPS. This is an educational setting. I'm trying to do the ...
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0 answers
10 views

Why the DSLR camera audio was set at -12 db?

From the online youtube videos It was mentioned that the professional audio equipment was usually set at -18 dbfs while the home ...
1 vote
0 answers
38 views

Premiere Pro offline transcription engine via CLI?

How can you access Premiere's local transcription engine outside of Premiere? Is there CLI access? I want the raw (hopefully JSON) data for analysis and additional per-word processing with time codes.
0 votes
1 answer
18 views

Removing parts of audio while leaving other parts intact

This is a bit of a niche question but, I recorded a video with a strange bird call that I was going to post somewhere for someone to ID it but there were people talking so you can’t hear the bird call ...
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0 answers
7 views

Suitable codec and settings to encode videos that can be scrubbed back and forth for making transcripts

For scientific purpose, I'm encoding videos that are going to be transcripted. Since in the process of transcription the person who does the transcription needs constantly to jump back and forth in ...

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