Questions tagged [audio]

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

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27 views

How do you reduce wind gust sounds from video?

So I've looked at a bunch of videos and all they describe is how to remove ambient wind sounds so that you can hear someone talk. Or how to remove the low hum of wind. And if it's the wind sound is ...
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2answers
52 views

How to make a SMALL video from single still image + audio, one key frame and all the rest p frames or whatever

I have a WhatsApp message of 1 hour duration, it is an .ogg audio of less than 9 MB in size. I want to upload it to YouTube, so I have to make it at least a single-frame video. So I made a JPEG cover ...
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1answer
9 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 ...
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0answers
16 views

Script works on some files in batch but not others, any advice?

I'm trying to convert a batch of (mostly) .mxf files (4 channels of audio) to .mp4 files (stereo audio) taking the first two channels from the source using the following script: #!/bin/zsh for i in *....
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1answer
20 views

Limit the scale of a pick whipped object

I want to make a speaker graphic 'wobble' to different frequencies.. Here's what I've done so far I made a speaker graphic in a comp And I parented the scale to a null in the main comp And I isolated ...
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1answer
16 views

After Effects Audio Ahead of Video in Preview and Render

I was working on my first large-ish upload for youtube, put it together quickly and didn't notice until it was complete that almost the entire video was riddled with audio desync issues. You can find ...
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0answers
26 views

Is there a hardware acceleration for audio encoding?

Video encoding with HW acceleration takes way less time than audio encoding. Is there a way to convert ac3 to aac faster?
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0answers
12 views

Why does audio not work for this mp4 when played on IPad with headphones plugged?

I'm hosting this video : https://itype.techforge.com.au/assets/videos/repeated/WordRat.mp4. It seems to work fine unless you happen to be on an IPad and plug the headphones in. With the headphones ...
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0answers
24 views

ffmpeg: convert an existing audio stream as an additional audio stream (keeping untouched original as well)

I have a video with 1 video stream, 2 audio streams (TrueHD 7.1 and E-AC3 5.1), a bunch of PGS subtitles and chapters. I want to copy the video, convert the 7.1 audio into AAC, copy over the original ...
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1answer
20 views

AfterEffects: How to make audio sine waves like this?

Alright, there are many tutorials on audio spectrums in AE, like https://www.youtube.com/watch?v=H_-aycDYsJM I want to make a visualizer like this, however, where the waves more mimic sine waves: ...
3
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1answer
45 views

How to filter out overlapping audio? Given a mixed track and one stem track, what's the best way to “subtract” the stem from the mix?

Given two audio streams, I'd like to remove the audio in one stream that also exists in another. In this particular case the 1st stream contains everything mixed, and the 2nd stream contains just the ...
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0answers
10 views

Trim Audio Only of a Video file - FFMPEG

I have a mkv file containing a Video 1 minute shorter than audio. I want to Cut out first 1 Minute of Audio Stream. How Would I accomplish That With ffmpeg? I tried -ss 00:01:00.000, But that also ...
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0answers
20 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 ...
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1answer
17 views

Extract audio from a multichannel video file

I have a QT ProRes which has 8 audio tracks. L/R/C/Lfe/Ls/Rs/Ltotal/Rtotal What I need to do is extract the 5.1 (tracks 1-6) into separate individual wav files without recompression and the last 2 (...
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1answer
11 views

Video editing software for easy freeze frame voiceover

I'm currently using Movie Studio Platinum 16. When I need to make a voiceover (e.g. for a product presentation), I like to do it without a carefully planned script, just talking over the video and ...
3
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1answer
34 views

Working on audio effects for multiple clips at once

My problem is that I have many clips with audio and I need to remove, modify and apply audio effects to all of them at once. Initially, I added an audio effect to a long clip and then I split it in ...
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1answer
24 views

Raising volume of one mic in an audio track to meet others' mics volumes

I have a long video where I and other people talk. Whereas the voices of others sound good, my mic captured mine with a very low volume. The problem is that the video is long and voices alternate, so ...
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1answer
39 views

How can I prevent YouTube from distorting the audio in my QuickTime video?

I recorded about 20 MP4 clips: most on my Android phone with the stock camera, a couple from Facebook (downloaded from the mobile web view), and one from a Zoom session. I cropped or scaled and padded ...
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0answers
19 views

How to replace non-looped audio to video as looped using FFMPEG?

my command is this "ffmpeg -i nonloop.wav -i input.mp4 -vcodec copy -max_muxing_queue_size 9999 -map 0:0 -map 1:0 -shortest output.mp4" that produces 0:00:01 duration video with audio ...
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0answers
132 views

Normalizing audio output loudness (LKFS/LUFS) in DaVinci Resolve 16

DaVinci Resolve 16 adds a great feature that allows applying "Normalize audio levels" on a clip using the ITU BS.1770 or EBU R128 standards, to a target level of -23 LKFS/LUFS, or similar. However, ...
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0answers
10 views

Variable audio drift from screen captured VR project in Unity

I'm new to video editing, and I need to sync up the audio and video from two different sources for a Virtual Reality game. Basically, I have the VR itself running in Unity on one computer, with the ...
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1answer
57 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 ...
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0answers
7 views

Play two soundtracks, from an “mkv” movie, on two different devices [closed]

I have "mkv" movies with two soundtracks, one English and one French. I'd like to play the video and the French soundtrack on my TV and the English soundtrack on my bluetooth earphones. Is there a ...
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1answer
41 views

Audio normalization across multiple clips and for Youtube, in After Effects

I am trying to normalize audio between the clips in my timeline, and at the same time I want to make sure that the overall volume matches Youtube's guidelines. I wonder if I can read the peak ...
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0answers
93 views

ffmpeg audio ADTS error when m3u8 has id3v2 tag

I'm trying to download a video from a VOD service. But when I access it using ffmpeg and try saving ffmpeg will fail with audio error. If i skip audio I can save the video, no problem. Here is ...
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0answers
21 views

Looking for a video editor app with visible audio track of main video?

I am looking for a video editor app on both Iphone and Android phone, better if free and accessible on both platform. I am looking for a video editor app with visible audio track of main video. I have ...
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1answer
19 views

With ffmpeg how do I imply spatial position when mixing mono to stereo

I have a range of mono audio samples and have worked out how to play them at specific time offsets but would like to give some indication of 'where the sound is coming from' I have the x and y centers ...
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0answers
10 views

How do I clean up fuzzy audio from internal mic in Lightworks?

I am currently shooting some YouTube videos using a Canon 250D DSLR but haven't gotten round to getting an external mic yet. I'm learning to use Lightworks and am wondering if there is a way to clean ...
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1answer
36 views

What is the typical audio to video sync threshold when it becomes noticeable? [duplicate]

At what point does audio / video delay become noticeable or is there a general industry standard threshold?
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1answer
33 views

Are most scenes in movies voiced over in post production?

In this B roll of Harry Potter, one can see how the same scene (how they walk out of the water and up a hill) is filmed multiple times. I guess that the final scene will be made up by several of ...
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1answer
77 views

kazam no sound and no red border for screencast

kazam worked fine on ubuntu 19.04, recording audio and video, and showing the red rectangular border during screencast recording; after installing ubuntu 20.04, kazam (from the repository) records ...
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0answers
51 views

FFMPEG command to mix audio and video with adjustable volume, plays till Video length and loop audio entire video

I have: Video file of X length Audio of Y length I am trying to achieve an output video that has the following qualities: The volume level of the added audio should be adjustable The audio should ...
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0answers
5 views

Bell sound coming at the end of the end of the silence layer

This is my first attempt at editing a video(.mp4). I am using VSDC video editor. I am trying to mute a porting on the audio layer. I added a silence portion as can be seen in the image below: ...
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1answer
1k views

Export timeline with multiple audio tracks as video with single audio track in DaVinci Resolve 16

Disclaimer up-front: I'm a beginner when it comes to video editing, so I'm maybe using the wrong terms to describe my problem. The task So I'm working on an OBS recording of myself, where I wanted ...
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0answers
17 views

How to generate a silence audio file of accurate duration in milliiseconds using ffmpeg in Node JS?

I am using ffmpeg npm package in Node JS for processing my audio files. My application usecase is that there will be a meeting recording which will happen for every attendee who joins the meeting and ...
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1answer
67 views

FFMPEG how to add image and soundwaves to video

I have an mp3 song that I am making a video for, I also have a background image. My command that doesn't work. ffmpeg -i song.mp3 -i image.jpg -filter_complex \ "[0:a]showwaves=s=3840x200:mode=line[...
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1answer
50 views

Create one split screen video, separate audio streams and a thumbnail from the resultant split screen video - all in one pass

I'm using ffmpeg to create several single splitscreen videos out of 2 separate videos. The 2 videos have audio so I want to extract the 2 video's audio streams as 2 separate mp3s and also create a ...
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0answers
4 views

Is there a name for the technique where dialogue pitch is reduced?

I've noticed a video/audio trend recently in media that is satirical or comedic with a serious twist. Usually, a newsreader or presenter, though not always, will be speaking to the camera about ...
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1answer
10 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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1answer
130 views

FFmpeg convert G.711 Audio to AAC Audio

Is it possible at all to convert G.711 audio to AAC audio in a stream using ffmpeg? My cam is streaming fine in Chrome (video + audio) but all the other browsers have no audio. I would appreciate any ...
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1answer
49 views

ffmpeg take channels 7+8 and make a stereo

I have a 8 audio track mov file which I want to encode to mp4 using ffmpeg BUT take the tracks 7+8 and put them as stereo with 320k and 48KHz to that mp4. My line is this: ffmpeg -i %source% -map 0:0 ...
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1answer
19 views

Where can I find build in sounds in fcpx

I a editing a video and I want to add some sound effects ie by some places add some small Bits of audio. Is there built in audio files in fcpx like in iMovie? Or do I need a plug-in? And if that is ...
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1answer
11 views

Is the boom mic recording audio?

Is the boom mic recording audio or do I need an audio recorder to hook it up to? Sorry I am the biggest amateur.
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0answers
26 views

Can I filter the audio output of the final mix of a scene

I have a scene in OBS with two audio sources. I can filter each audio source individually, but certain effects (e.g. compression and limiting) need to be run after the two sources are mixed together. ...
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1answer
82 views

VSDC, No audio while editing (Preview)

There is no audio when I preview the clips while editing them. The project is on stereo, the latest update installed, "Don't Use Audio" is not selected in the clip's properties menu. Let me know a ...
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2answers
2k views

How I can play an Amazon Prime Video movie with Dolby Digital Plus audio using Chrome browser in my PC?

Currently my web browser Chrome (last version 80) cannot play Dolby Digital Plus audio. I know this audio is used in other devices like Apple TV, Roku, or Amazon Fire TV for example. According to ...
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0answers
16 views

Normalize audio in multiple clips in AviSynth+

I want to normalize or equalize the audio from the concatenation of multiple files from a show. They were taken in similar conditions with similar room tone. The Normalize() filter can adjust the ...
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0answers
10 views

How to add a still image at the beginning of a movie in AviSynth+?

I want to add the poster of a show at the beginning of the footage in AviSynth+. I tried this: poster=ImageSource("F:\poster.jpg", FPS=25, End=125) FadeIO(poster, 50) FadeIn(clip1, 100) and I get ...
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0answers
157 views

Quick audio cleanup filters in Kdenlive

I have a project where people are talking in amateur footage. That means no lava or overhead microphone. Just digital camera. A lot of outside noise is caught. Is there a filter, multi-band equalizer,...
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0answers
50 views

Is it possible to remove this noise in Davince Resolve?

I am new to video editing, so I'm sorry if this question is very basic. I have the attached noise in a few audio clips which was recording using lavalier microphone and I don't know how to remove that ...

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