All Questions
7,557
questions
-2
votes
0
answers
15
views
How does Facebook programmatically find copyright matches on user-uploaded videos? [closed]
I have an example music video that I have on my computer that I've been using as a test for uploading video files to my own web service. Today, I uploaded that video to facebook just to observe ...
- 9
0
votes
0
answers
14
views
Ways to mute audio interface's recording device via Windows Sound Control Panel
Environment: Windows 10
Device: Teyun Q12 audio interface
What happens: In Sound Control Panel > Recording tab > Right-clicking the interface's recording device > Levels tab > Clicking the ...
- 1
0
votes
0
answers
24
views
Windows 11, Nvidia 3080, HDMI video out works, but windows detects no HDMI audio device
My system:
Windows 11 23H2
Nvidia 3080 FE
Denon AVR-S960H receiver connected to HDMI output from vid card
I used all of this hardware before with Win 10 for years with no issues. I installed Win 11 ...
- 673
2
votes
0
answers
38
views
Why is there no audio on a newly installed Debian Trixie with XFCE, dual booting on Macbook Pro 2019 with Intel CPU and T2 chip?
There is no audio after dual booting Debian Trixie with XFCE, used ISO CD and Ethernet cable, on MacBook Pro (2019) with Intel CPU an T2 chip.
I followed the steps on this site.
(A) For PipeWire
$ ...
- 21
0
votes
0
answers
20
views
How to stream integrated camera to Facebook using FFMpeg
I'm currently using this command to stream to Facebook:
ffmpeg -f dshow -i video="HD User Facing":audio="Varios micrófonos (Realtek(R) Audio)" -c:v h264 -pix_fmt yuv420p -r 30 -g ...
- 1
0
votes
0
answers
19
views
Separating audio m4b file based on a cue file
Separating audio m4b file based on a cue file
How can I split an audio m4b into separate files using a cue file?
Note: The m4b file has no chapters that's why I need to use the cue file to split it.
I ...
- 153
0
votes
0
answers
10
views
Changing Video's Sound with another sound with using Shotcut
I want to replace the sound of the video file I have with another video file. I use a program called Shotcut. I have a 250 mb video, mkv file, audio in opus. I change the sound with Shotcut and select ...
0
votes
1
answer
9
views
sox became buggy after MacOS upgrade to Ventura 13.6.5
I installed sox using homebrew. It ran without problems when I was using Big Sur (10.16). However, after updating to Ventura (13.6.5), when I try to play an audio file, it freezes with the following ...
- 141
0
votes
0
answers
24
views
Bluetooth audio device connected and working but not listed by bluetoothctl
I'm using a bluetooth audio receiver called JR-CB1 to send my laptop's audio to my stereo. It has a strange issue where when it is connected, bluetoothctl is not aware of it. It is properly paired and ...
- 117
1
vote
0
answers
24
views
How to achieve the same performance of Geforce Experience using FFMpeg screen capture
I have a NVidia card and currently use Geforce Experience to do screen capturing. GE performance is really excellent and even if I record a video in 4K, 60 FPS, and high bit rate, I don't experience ...
- 711
0
votes
0
answers
29
views
Loud whistle noise from aio fans under load
When under load such as when doing demanding tasks on my pc, my aio (Corsair H100x) fans make a really loud whistling noise.
my CPU temps are still very good though, around sub 70 degrees celsius. ...
- 3
4
votes
1
answer
381
views
How can I set a Discord mute key/button for M3 MacBook Air running Sonoma?
How can I change the dictate (microphone symbol) and focus (moon symbol) function keys to mute and deafen for Discord on a new M3 MacBook Air running Sonoma?
I do not use these keys at all. The only ...
- 249
0
votes
1
answer
51
views
Mute microphone input without muting in Windows
I used to have a microphone with a hardware mute, which was a button I could physically press on the mic that would mute it. It was likely done in hardware since Windows would not think the microphone ...
- 2,496
0
votes
0
answers
22
views
ffmpeg audio amerge with volume level adjustment and sidechain processing stopped working
I'm trying to merge my stereo background music with a mono voiceover audio with volume adjustment and sidechain processing to duck the music when voiceover is playing. This command used to work fine ...
- 1
1
vote
1
answer
32
views
How can I detect which channels contain compressed audio in a video file by using command line tools?
I have an MXF file that contains 16 audio tracks. I know the first two tracks (stereo) contain Dolby E compressed video. Using MediaInfo (gui) it lists 16 audio streams with a mix of Dolby E and PCM ...
- 11
0
votes
0
answers
23
views
No output device, until I plug in an AUX cable
A little while ago I messed something up while inside my audio system settings GUI (Using KDE Plasma on Debian). I can not recall exactly what I did, but I pressed some button while inside that menu ...
0
votes
0
answers
25
views
System Volume OSD shows unwanted meta data & controls
I recently noticed that my system volume OSD has become polluted with meta data and a control interface that I do not want to have. This extra data seems to be present when a tab in a web browser ...
- 2,511
0
votes
0
answers
21
views
How to prevent Dell desktop from making a chime whenever my monitor goes to sleep?
I have a Windows 10 Dell desktop which makes a chime whenever its monitor goes to sleep.
The monitor is shared with another PC and the Dell is connected via a DP-HDMI cable. The Dell also has an ...
- 2,397
0
votes
0
answers
11
views
Audio only output via my PC to hifi DAC using the VLC app on my ipad
Using windows10 on my Desktop PC with attached hard disk music storage all in FLAC format..
Access to all of my music files is either directly from my PC via JRiver or by the JRiver app on my iPad. My ...
0
votes
0
answers
23
views
How to listen to a module-native-protocol-tcp [mpd] pulseaudio tcp stream on two output devices with independent volume control
I saw https://unix.stackexchange.com/questions/611158/how-do-i-monitor-microphone-input but this only applies to the mic apparently.
(how do i create this list in markdow?)
✓ server: mpd pulseaudo ...
- 142
0
votes
0
answers
74
views
Bluetooth earbuds not playing any sound after a while while video calling on my macbook
I am using a 2017 MacBook air. I can watch videos with the same earbuds without any issue at all for however long. But, when video calling or attending meetings in WhatsApp and MS Teams (haven't tried ...
1
vote
1
answer
103
views
Want to understand encoding with Opus for maximum audio quality in FFmpeg. Bitrate stuck at 96kbps?
I'm sort of new to FFmpeg, but I got much of the basics down. I am trying to understand how to encode audio with Opus. My knowledge is a bit weak when it comes to audio, bitrates, sample rate and Hz.
...
- 9
0
votes
0
answers
16
views
Configuring ALSA using loopback to output audio through both audio jack and program simultaneously
I’m having a lot of trouble configuring ALSA and loopback on my system [ubuntu 22.04]. I want to combine the headphone and loopback streams so that when I play any audio, I can hear it from the audio ...
3
votes
1
answer
109
views
How to repair damaged AAC file without re-encoding using FFmpeg or other tools?
I have a 256Kbps AAC file that has a corrupted segment lasting less ~1/20th of a second. I'm seeking to "repair" the damaged portion without re-encoding - or, at least via a minimally ...
- 31
0
votes
0
answers
70
views
Google Chrome on Windows 11 - No Sound, Not in sound Mixer
I'm running Chrome (Version 123.0.6312.86 (Official Build) (64-bit) FWIW) on Win 11 Pro.
I can't get sound from any websites, my first thought was I might of turned it down one day in Windows Volume ...
- 1
0
votes
0
answers
46
views
Setting device profile on PipeWire
I have a gaming headset with both chat and game outputs, but I can only select Digital Output + Mono Input in audio settings.
Back in Manjaro with PulseAudio I added a udev rule like
echo 'ATTRS{...
- 1
0
votes
1
answer
117
views
Lossy audio/video/image formats and data loss
I once heard that if you store music/videos/images in lossy formats, the quality gradually degrades over time.
The difference in perception is not the only reason to store music in FLAC. FLAC uses ...
- 103
0
votes
1
answer
87
views
How can I detect which audio channels in a video file are silent using FFMPEG?
I need to be able to scan video files and report which audio tracks/channels are silent without knowing anything about the file's audio mapping ahead of time. I have tried this ffmpeg (v4.1) command ...
- 11
2
votes
0
answers
27
views
Yet another ffmpeg concat audio sync issue [closed]
I've read through dozens of posts, tried many suggestions, nothing seems to work for me. The funny part is that the video is fine in some players (e.g. Quicktime) but not the others (e.g. Chrome).
...
- 261
0
votes
0
answers
29
views
Make volume slider adjust only current program volume
Can I make The main Windows volume slider (or even a third party one if necessary) adjust only the current programs volume?
I currently use Eartrumpet but that sadly doesn't have that functionality.
- 1
0
votes
0
answers
18
views
FFMPEG - Any suggestions on how to achieve a lookahead with sidechaincompress?
I need sidechaincompress (i'll call it SCC) to look ahead 750ms and smoothly drop the audio level in that lookahead window.
I'm currently using this:
-filter_complex "0:a]sidechaincompress=...
- 11
0
votes
0
answers
19
views
Turn on speaker amplifier when audio output selected
I'm using KDE (plasma) with pipewire for audio.
I have some desktop speakers that need an amplifier with a power switch. I have a remote controlled power socket (shelly plug) to turn on the amplifier ...
- 103
0
votes
0
answers
27
views
REPLAYGAIN value being ignored on some MP3's - FFmpeg Transcoder cs - process Error Data Received:454
I am having an issue per below. I use Windows, and just installed ffmpeg-2024-03-07-git-97beb63a66-full_build, which did not correct it.
I have added Track ReplayGain to my music library using Foobar.
...
0
votes
1
answer
47
views
Converting audio tracks only in mkv files to AC3
I have an LG CX TV. The internal video player does not recognise DTS audio format. I'd like to be able to play MKV files (which might have DTS audio tracks) from an external USB device. I was looking ...
- 1
0
votes
0
answers
36
views
Zorin 17. Sound issues with Audacity
I recently dumped Windows & installed Zorin OS 17 so I’m a greenhorn as far as Linux goes.
So far it’s all going rather well except for a few minor issues, most of which I’ve been able to solve. ...
- 1
0
votes
0
answers
122
views
No sound after Manjaro install, just a dummy Output
This question has been asked a couple of times on this site, one for Pop OS and one for Linux mint, both fixes listed on these questions have not helped me in anyway.
I just installed Manjaro today, ...
0
votes
0
answers
56
views
Weird ffmpeg behavior - "-shortest" flag ends the audio too early
I'm trying to generate some video files using ffmpeg, but when I use the -shortest flag, I get a file whose audio stream is several seconds shorter than its video stream.
I tried several ...
- 101
-1
votes
1
answer
341
views
How to mute audio by looping the last second of every x seconds in the video?
UPDATE:
Баяр Гончикжапов and inspired by this post, tried:
ffmpeg -i input.mp4 -af "volume=volume=0:enable ='gte(mod(t\,20)\,15)'" -c:v copy -c:a aac -b:a 192K output.mp4
Post solved, thank ...
- 19
1
vote
1
answer
77
views
FFMPEG - How to Merge Three Files - Only Middle One Has Audio
I have three videos that I want to merge into single one.
Intro video (mp4) - 3 seconds - No Audio
Main video (mp4) - 1 minute - With Audio
End video (mp4) - 3 seconds - No Audio
When I use ffmpeg, ...
- 1,688
0
votes
0
answers
44
views
Adjusting volume levels with ffmpeg afade
I am having some trouble with the following ffmpeg command string:
ffmpeg -i 20s.wav -af "afade=t=out:st=2:d=1:silence=0.07, afade=t=in:st=5:d=1" out.wav
What I expect from this: At 2 ...
1
vote
1
answer
144
views
How to detect and reduce a WAV file’s sample rate to its real sample rate?
I'm not sure if my question makes sense, but here it is the problem I have.
I have a bunch of wave (WAV) files that I believe were converted from MP3 or some other format that I have no information ...
- 115
0
votes
0
answers
31
views
Virtual Audio Cable (VAC)
I have had Virtual Audio Cable (VAC) before and it would make 1 line and I would add one more to geve me 2 lines. But now the program make two number 1lines. and when I make the number 2 line it give ...
0
votes
0
answers
28
views
How to fix command-line VLC `AudioObjectAddPropertyListener` errors
$ vlc -Z --play-and-exit my_music.mp4
VLC media player 3.0.20 Vetinari (revision 3.0.20-0-g6f0d0ab126)
[00007fec32124770] macosx interface error: Updater aborted with error 1001
[00007fec21807100] ...
- 8,889
0
votes
0
answers
52
views
How to automatically convert zoompan filter's private fps to input video's fps?
I have a 24 fps video, I'm trying to use the zoompan filter in my video and I'm having trouble setting the filter's private fps. If you set the fps in the zoompan filter to fps=30, the video and audio ...
- 1
0
votes
0
answers
48
views
External microphone not picking up signal on Dell Inspiron
On a new Dell Inspiron laptop running Windows 11, when I first insert an audio cable (external microphone) into the jack port, a prompt came up from what looked like a third party software that asked ...
- 393
0
votes
1
answer
69
views
Complex ffmpeg multi-encode/streamcopy/muxing scenario: is this actually doable?
I'm trying to do multiple muxing/re-encode/copy operations on an input video with ffmpeg and have run into roadblocks with the methods I've tried; before I continue testing, I want to confirm whether ...
- 3
0
votes
0
answers
26
views
How to Record System Audio using ffmpeg? [duplicate]
It has come to my attention that some apps like camtasia have options to record system sounds / alert sounds (System Audio).
is there a way to capture system sounds without modificating windows system ...
- 101
-1
votes
1
answer
46
views
Audio Driver has 'Location: Unknown' and isn't working even though windows xp says it functions fine
I have a dell latitude d830 with windows XP professional. I'm using the built-in speakers. It's definitely not a hardware problem as when I switch my HDDs and boot into Windows 7 the audio works fine. ...
0
votes
1
answer
106
views
How to encode FLAC and DTS audio formats to AAC most efficiently?
I have been encoding audio for my own personal media library from various formats into AAC available for direct play on my Plex Server. I have been using the following command with ffmpeg:
ffmpeg -i &...
- 9
2
votes
0
answers
101
views
How to quick record system audio in background on macOS?
On macOS Monterey I want to achieve what can be done on Windows with ShareX: record system audio with a global hotkey and have the audio file automatically copied to the clipboard – all in the ...
- 21