Questions tagged [audio]

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

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20 views

When I play two or more audio tracks at the same time, is there a formula to reduce volume so it does not clip?

When I play two videos e.g. side by side, the summed up volume sometimes ends up clipping. What I normally do, is lowering the volume of both the audio tracks (which have the same loudness), say of ...
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7 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.
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Is the audio from these videos in some weird format that I can't decode, or is it just corrupted?

I borrowed an Apeman A87 and used it on a road trip. However, the audio came out apparently corrupted except sometimes when filming indoors and with the menu set to the default language of the market ...
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Do i need both microphone and audiorecorder to start my video recording

I want to start recording udemy videos, i want to make proffessionally and esteticly looking good, i started ordering 3 lighting i decorated the place Saramonic SmartRig+ Zoom H1n Portable Recorder ...
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31 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.
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12 views

Matching voice recorded through different devices or software sources

I often end up having to record the audio more than once for some segments because of poor quality or background noise during initial recording. I use the same microphone but may be in a different ...
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14 views

Why is the video exported from OpenShot Video Editor silent when I choose the last few minutes of a soundtrack?

In OpenShot Video Editor, whenever I choose the last few minutes of a mp3 clip, either by dragging the clip edge or by the split clip function, that part always goes silent in the video exported, ...
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1answer
26 views

How to get external mic working through DSLR camera on Zoom on Mac?

I have tried taking the advice and plugging my mic into my camera, but it is now not working, for the question Noticeable video delay when connecting to laptop and DSLR + external mic. Now I am not ...
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34 views

Noticeable video delay when connecting to laptop and DSLR + external mic

I have a Canon EOS RP DSLR camera that is connected to the adapter through the battery, and plugged into a Pengo HDMI capture device, which is plugged into a USB hub (contains 16 USB ports), plugged ...
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Trouble combining audio and video streams

I have two streams, one audio and the other video. I'm trying to combine them using this command: ffmpeg -y -i audio.m3u8 -i video.m3u8 -c copy Video.mp4 I found this syntax here: https://video....
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FFMPEG -- Create New Audio File using aselect filter API call in C code

I have been working on an a program in C that invokes the use of FFMPEG's libraries to remove some segments of audio from a given audio file. I have created the filter successfully using the API call, ...
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FFMPEG C#/.NET Wrapper with SilenceDetect Filter

Does anyone happen to know if a wrapper exists within C# to run the FFMPEG silencedetect filter on audio files? I have been working on a program and am trying to avoid just running the FFMPEG ...
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ffmpeg- transcoding live channels

I'm using nginx conf to downsize the bitrate of some of live channels and convert its format to rtmp, but there are some channels that have more than one audio track, how can I change it? this is the ...
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42 views

Display only Intervals Selected using FFMPEG command

I have been working to remove certain intervals in audio using FFMPEG and was wondering if there is a command or certain technique to only display certain intervals selected. For example, say I have ...
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18 views

Removing background audio noise

I have recorded a demonstration video using a lav mic. The mic quality is ok but there is a discernible hiss in the background. I've tried playing with the settings on the camera and the mic, ...
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49 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 ...
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Is is safe to run ffmpeg several times in parallel in the same folder?

I'm writing a test which has to generate many files and to accelerate the feat, I use my 64 CPUs. That means I end up running up to 64 instances of ffmpeg inside the same folder. Is that a potential ...
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How can I record video over an existing video in an "overdub" fashion, keeping them perfectly in sync?

I am trying to figure out if there some way to for me to "overdub" video. What I mean by that is, I want to be able to record a video of me playing an instrument. Then I want to play back ...
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1answer
74 views

Correct way to normalize two audios before using filter_complex amix

I am trying to use ffmpeg to merge two audios, in.mp3 and out.mp3, like this: ffmpeg -i in.mp3 -i out.mp3 -filter_complex amix=inputs=2:duration=longest -c:a libmp3lame res.mp3 But the final output ...
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How to add noise reduction in specific parts of audio in Resolve

How to add noise reduction in specific parts of audio? For example, there is a part where there is speech with background noise so I am using the Noise Reduction effect to remove it but it also adds ...
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3 views

How do I add a second soundtrack in final cut pro?

I have an old movie for which I've added music and now I want to add some audio sound clips as well. How would I go about adding the audio clips along with the music which is already present?
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11 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 ...
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10 views

How do I remove wind noise when recording videos on my phone?

For some background information, I am a railway enthusiast and I regularly film trains passing by and also some of the train journeys I go on, filming the view outside. The trains move fast and here ...
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15 views

Only audio is playing when trying to replace the audio in video

I am trying to replace the audio with a new audio, I have gone through some SO questions and still having trouble solving the problem. As of now, I am getting only the audio with the specified ...
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1answer
30 views

What cable for 200' run between camera (video/audio) and ATEM switcher

I am running a video/audio signal from a camera in a lobby to a Blackmagicdesign ATEM switcher that are about 150' apart but cable run will be closer to 200'. The video/audio from the camera in the ...
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1answer
20 views

How to combine multiple audio tracks without sounding blasted?

Was going to make a combination of 9 covers of people singing the same song. I have it synced already and it is on sync, problem is its just sound like literal ear ache when played. How to fix?
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Audio clipping after amerge in FFmpeg

Hoping someone out there can help me with this audio issue I'm having using FFmpeg. I've written a bash script using FFmpeg that processes as source a broadcast quality ProRes (HQ) file with four mono ...
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25 views

Triming ogg files to an exact number of samples

Let me begin by saying that I'm not sure on which site on the Stack Exchange network I should post this, as the central theme is essentially codec internals. Background I would like to be able to ...
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1answer
15 views

How to record the voices of three people in a room?

We are planning to produce a Youtube channel, in which we interview one professor and one student at the same time, and we have very little experience with sound. A typical situation would be to have ...
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46 views

How to detect "late" audio streams in MPEG-2 TS (with ffmpeg, ffprobe or mediainfo)?

I am recording from my Linux TV-Sat receiver in MPEG-2 transport stream (mpeg2video) format. The recording starts before the actual movie, so it usually only has a single (local) audio stream in the ...
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9 views

Is there anyway to que voice to light effects in Sony Vegas Pro 17

I know the title is confusing, and that's because i'm not sure how to say it. I was thinking of in my videos having a little thing in the corner which lights up whenever me or one of my friends is ...
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1answer
21 views

Exclude audio from time remap

I am working on a project, I have separate a audio layer and a video layer (with the audio muted) and I have applied time remapping to the video layer. The issue is now that whenever the video slows ...
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1answer
64 views

Remove (or reduce) background music, and emphasise the background voice

I have a video with some people talking, but the music cover the people voices. I can find the music with app like Shazam. I know that remove the music is impossible. There is a way for reduce the ...
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1answer
27 views

how do I can check whether a sound clip I want to use is copyrighted? (I want to use it in a video and an app also)

as mentioned in title, I want to be sure that a sound I found on youtube (2 seconds long) is copyrighted (and also, if I will modify it (in audacity or something) will it still break copyright laws?)
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Audio distoreted after exporting on Premiere Pro

I just finished my video on premiere pro. The sound is nice when I'm listening to my premiere pro's video; however, my audio is distorted once I exported. I already used premiere pro before for a ...
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9 views

Audio/Video "Drift" on Mac (even when recording them using separate apps)

I have an older version of Screenflow (ver 6.x) and I find that it's getting so that my videos are falling out of sync with the audio (only noticed this lately, not sure if it is tied to newer ...
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1answer
97 views

Premiere Pro: How to sync speed ramped audio with video from linked After Effects comp?

When linking an AE comp through PP, the audio won't sync. This has been an issue forever. I film skate/bmx videos and it's essential that the speed ramp syncs with the audio so you can hear the cool ...
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1answer
58 views

How to automatedly synchronize video recording with pre-recorded music track?

When they film music videos ---ones that require the artist to lip sync in cooordination with a pre-recorded song--- do they synchronize the moment that the cameraman hits the record button on the ...
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42 views

5.1 audio on YouTube videos?

How do I get Stereo + 5.1 for YouTube videos? It has been a long time since somebody made a question about this topic on this forum and lots of stuff have changed sice then. So does YouTube support 5....
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67 views

ffmpeg: can't loop over files in folder to remove audio track f was unexpected at this time

I have a folder with .avi files: dogs dog1.avi dog2.avi ... Each .avi file has 2 audio tracks. I want to remove the first track. I can do if for one file like this: ffmpeg -i dog1.avi -map 0 -...
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96 views

How to input noise values in dBFS for ffmpeg silence detect

I used the silencedetect of ffmpeg with noise value of -30dB to get the silent parts of a small video file & used those timestamps to trim & re-encode the silent parts of the videos. I had ...
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1answer
209 views

What cable type (TRS or TRRS) is appropriate for connecting my Zoom H5 to my Sony A6400?

So, I have a Sony A6400 camera that I want to connect directly to my Zoom H5 audio recorder in order to record my sound directly onto the camera video without bothering to sync it up in my post ...
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15 views

Clip super loud after embedding

With Premiere Pro 14.8.0 on Mac OS I have a simple project. In one wequence I have 1 single video and one audio: The audio is nice and normalised, sounds perfectly all right. Then I embed this ...
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2answers
74 views

How to search for a sound in a video

I want to make a compilation video of Tesla FSD Beta's disengagements. When FSD Beta disengages, it makes a particular sound. I would like a piece of software I can use without having to code that ...
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1answer
73 views

How can I generate voice as someone elses voice?

I dont know if its possible but I would like to create voice similar to Gandalf from Lord of the rings. Is there some app or program which can help me? I know that I can use google translator but it ...
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Convert MPEG-4 movie file to proper pitch and time-length (currently too fast)

I've got a video of The Band's 1970 performance of Long Black Veil. It is in the key of Ab instead of G and the video is shorter in length as a result; it is a half-step up in pitch and x-seconds ...
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How can I automate cutting a video along loud beep sounds?

I recorded videos (mp4) of participants in an experiment doing a task at a laptop. There are three tasks, at the beginning and end of which there is a loud beep sound. I would like to automatically ...
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1answer
34 views

How does Premiere Pro keep markers on audio files even after export?

I opened a project with video and audio, and the audio had markers done in Premiere Pro (right-click on the playhead -> Add Marker). Then I exported the audio to AIFF. And then I imported the AIFF ...
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29 views

ovelays not embedding properly and no audio

I have a bunch of small mp4 files (without audio), and an mp3 audio file. Using the concat protocol, I concatenated them with -shortest flag ffmpeg -f concat -safe 0 -i "list.txt" -i ".....
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15 views

Move videos audio track few miliseconds further

My videorecorder made audio out of sync few miliseconds. Is there any way how I can fix all the footages in my timeline in Final Cut pro ? If not, maybe I can use ffmpeg to fix them at once somehow ? ...

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