Questions tagged [audio]

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

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6 views

Why does my camcorder keep breaking my earphones?

I use low grade brand less apple knockoff earphones and my HXR-MC 2500 keeps breaking them. I plug my low grade TRSS earphones for audio monitoring, when my job is done after a hour recording I plug ...
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42 views

ffmpeg dynamic filter values from piped input

I need to run an audio filter on a piped input using its own lufs value as a variable, without writing to disk. I previously bounced the piped input to processedaudio.wav and the command works as: ...
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31 views

How can you use ffmpeg's afftdn -sn flag to sample noise from a reference noise file?

The FFmpeg documentation for the afftdn audio filter says for the -sn flag: sample_noise, sn Start or stop measuring noise profile. Syntax for the command is : "start" or "stop" string. After ...
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23 views

How to tell ffmpeg to copy all streams except one audio stream (to encode)?

Input: * One Video * 4 audio streams * Many subtitles * Chapters I want to re-encode one of the audio streams (the first one) and keep everything else as-of (copy). Is it possible to do that in ...
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6 views

How can I mute part of a video clip with fading (fading out before fading in the audio stream)

I want to remove part of audio in a video clip. I have used https://stackoverflow.com/questions/54992785/ffmpeg-remove-a-part-of-audio-in-mp4-file-but-not-all to mute audio between t=5.5 seconds and t=...
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22 views

Change default audio track in mp4 video

I often download mp4 videos with multiple audio tracks. Is it any way or some tools with explanation to change default audio track ?
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5 views

No Audio in Pinnacle Studio 23

I have been using Pinnacle Studio for a while. I recently upgraded to v23 latest version. At the start everything was fine but when PS freezed due to some error (e.g. mkv file playback) the PS losts ...
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1answer
22 views

Fixing audio/video out of sync when editing recorded broadcast

I have recorded broadcast-ed material using a DVB-T tuner. That produces several TS files per recording (most likely to keep filesize within FAT32 limitations). I have concatenated each recording ...
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1answer
47 views

Variable bitrate for AAC - how to reach it?

I tried encoding audio stream into AAC with a variable bitrate mode — I followed the advice from FFmpeg VBR Settings and changed my original option -b:a 128k to -q:a 1.3 in this original command ...
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30 views

Why I can't check the bit rate on some videos?

I've downloaded a video from YouTube, well I've downloaded the video stream and the audio stream of a YouTube video separately. Then with this ffmpeg command ffmpeg -protocol_whitelist "file,http,...
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7 views

My nested audio doesn't work even it has the waveform

Hi. I'm a newbie video editor using Primiere Pro CC 2019. I Nest my audio in one sequence so I can edit them easily later on. However, when I'm editing a long nested sequence, the audio doesn't work,...
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22 views

What is this effect used by a lot of voice actors called?

I am looking for a specific voice effect that I have listened to in many videos on YouTube and other places. I don't know what it is called and it also does not sound natural. Here are examples - ...
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3answers
44 views

Extract audio from video preserving audio quality

I need to extract sound from videos. There must be know loss of quality (since the sound files will be used in speech-to-text services). So I want to extract the audio from the video exactly as it is ...
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124 views

Audio hardware not working in premiere pro 2020

In premiere pro 2020, I have no audio playback during preview. In the audio hardware tab in preferences, it's telling me that the default input and output devices are not working. Sound works fine in ...
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1answer
6 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 ...
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1answer
15 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 ...
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2answers
81 views

how can I convert slow motion video into normal speed without losing fps or audio sample rate?

I want to download a slow-motion video playlist (with the frame rate of the videos being either 480 fps or 1000 fps.) and be able to speed up the videos at least 16x without losing the frame rate or ...
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1answer
191 views

Is there any way to record external audio from a Canon Rebel R6?

I am looking at buying a Canon Rebel T6 to record video, but would like to have better audio than the built in microphone. Is there any way, with an adapter or otherwise, that I can use this camera to ...
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16 views

Exporting from Premiere as WAV and ProRes - audio is not in sync

My workflow: I've completed work on a complex edit. I have made two exports: I have exported the video (with audio) as a ProRes file with 48kHz 16-bit PCM audio. I've also exported the sequence as ...
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1answer
19 views

How can I copy-paste audio effect to other audio clips in VideoPad?

I took quite an effort to specify an Amplify audio effect with changing levels (in and out). I have more audio clips there for which I would like this effect too. Is it possible somehow copy-paste the ...
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11 views

Need help with sound design

I'm making a mashup video where the spiderman theme song is sung by the original spiderman movies. I'm trying to achieve something like This (example video). This is what I've made so far. I'm ...
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1answer
328 views

ffmpeg: How to fix `Unsupported channel layout “1 channels (FL)” error`, when I convert the source containing separated FL/FR audio streams?

Problem I want to convert the MOV file containing the separated FL/FR audio streams to MP4 file, transcoding the video to h264 and the audio to AAC. However, it fails with the following error: [aac @...
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3 views

Keyframe-triggered audio effect delayed six seconds

In Adobe Premiere Pro 13.1, I have an audio track A2. It is a MP3. I set a keyframe at about 1:11 and 1:14 in this MP3. Between them, the volume goes from -∞ to 0 dB. The problem is that this effect ...
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42 views

Syncing audios of two same videos of different framerates

I have two video files: High quality video / English voiceover Lower quality video / My language voiceover These 2 files contains same video, but has different times (one is usually 5% slower or ...
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9 views

iPhone screen recording - no sound - when uploading on Youtube

so, I do my screen recordings on iPhone 7 - with standard iOS tool. And videos are with sound. If I upload from iPhone to Youtube - there is sound. If I do AirDrop from iPhone to Mac and then upload ...
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558 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 ...
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1answer
53 views

What are the most mergeable codecs? What is the best codecs for intermediate videos?

I want to compose many videos from frames and mp3 files then join them together using FFMPEG. [frames+mp3] -> [Intermediate videos] -> [Joined intermediate videos] Using mp4 with aac ...
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1answer
30 views

How to re-order the .wav file channels

I need to change the order of channels in .wav file. for example if .wav file contains 16 channel like "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16" then need to change this order to "14 15 16 1 2 3 ...
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144 views

Convert ffmpeg audio volumedetect negative dB levels to common loudness positive dB levls

I have a process sampling mean_volume levels from $ ffmpeg -af 'volumedetect' ... which outputs negative -##.## dB measurements where 0 dB is very loud and -100 dB is very quiet. I need to line those ...
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14 views

Export without audio

During the preview on the timeline audio is working correctly. Why the exported files from Premiere has no audio also if i put the tick on the audio export? I really don't know what to do
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21 views

Make the sound of an audience cheering a custom text

I want to make the sound of a group of people (like an audience) cheering a user defined text. Is it possible to achieve this easily? I tried googling, but couldn't find anything.
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2answers
38 views

Defined Technical Specs for 'Broadcast Quality'

Does anyone know if there are clear technical specs a digital file can be assessed against to confirm a valid 'broadcast quality' file? EG: Video = certain bitrate Audio = certain bitrate. ...
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1answer
21 views

Formula / Calculate how much to slow video down to match audio?

scenario: I have video matched with audio (song). I slow the audio (song) down (eg from 120 bpm to 115bpm ie, I know exactly how much slower the new audio is than the original video) How do I ...
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1answer
27 views

Recording a two speaker event with large audience

We are doing regular events with two speakers on the floor who have their own presentations in parallel. The event is a live hacking presentation, one speaker is the moderator and victim, the other ...
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34 views

How to use record video with ffmpeg

can someone tell me how I can record a video + audio and can I specify the fps and the resolution of the output file ? I'm very new to ffmpeg so i don't know much. Thanks.
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1answer
102 views

Choppy and Laggy audio in Premiere Pro

My videos and audio files played fine in Premiere Pro yesterday, but today when I open the project file again, all the audio files, including those in videos, are choppy and laggy during playback. ...
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222 views

FFmpeg Throws Errors When Converting 7.1 TrueHD (Blu-ray Audio) To PCM Or FLAC

I have attempted to convert a TrueHD stream to PCM as well as FLAC. Throughout the encoding process, errors occur: "lossless check failed" and others. The same set of errors occurred when converting ...
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2answers
36 views

I recently bought a Rode NTG2 without much research, what else do I need to make it work well?

Since it has an option for AA battery, I don't need phantom power right? Do absolutely need an audio interface? or can I just use an XLR to 3.5mm cable and connect it to my computer? Are there any ...
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1answer
39 views

ffmpeg: map 4 stereo pairs into 7.1 audio in FLV/RTMP

I am trying to get this ffmpeg command right, and think I am close but not quite there. I have a source that has 4 stereo pairs in it (RTSP), so the source looks like this in ffmpeg: Input #0, sdp, ...
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1answer
13 views

After effects: Adding visual callouts of currently playing audio files with a source text script

I'm working on a short film, and I've got AE CS 6 as my editor. I have a friend who is an audio engineer, who will perform the Protools final audio mixing and editing. I've got some sound effects in ...
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13 views

Premiere Pro Volume levels drop on audio 1 whenever I add a sound effect to audio 2

Pretty new to video editing and Premiere Pro in general. Been looking everywhere for an answer to this and its driving me a bit nuts. Anytime I add in a sound effect on audio 2, the volume on audio ...
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1answer
366 views

Merge two videos in ffmpeg with audio from one

How can I merge two videos v1 and v2, but the audio coming from v2? Say v1 is 1 second, and v2 is 2 second. Basically I want to merge v1 and half of v2, but the whole audio be from v2. Please make it ...
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32 views

Video clip making features with FFmpeg

I'm trying to use ffmpeg to create a video clip out of multiple videos, photos, and background music. Basically all the features that tools like Windows Movie Maker support. I would like to do things ...
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1answer
11 views

Static on Mic line in when using EOS Utility on 600d

I've noticed quite a loud static noise on the line in of my camera when recording with EOS Utility. I've tried using different cabled for everything, and it works fine when the computer is not plugged ...
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1answer
47 views

Trouble in Cut a portion of an audio file, and add fade in and fadeout Effect

ffmpeg -i track1.wav -ss 00:00:38.160 -t 00:00:20.720 -vn -codec:a libmp3lame -ac 2 -b:a 256k -map a -af afade=t=in:ss=38:d=3,afade=t=out:st=55:d=3 output.mp3 This is how I am cutting the audio file. ...
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1answer
38 views

How can I manually set the LFE volume in Premiere's “Audio Track Mixer” panel?

In the Audio Track Mixer panel in Premiere Pro 2019, each channel has a slider that adjusts the LFE volume. However, setting the volume this way is imprecise. How can I manually set this value?
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2answers
91 views

Video editing software with Audio scrubbing[Windows 10- 64bit]

I am looking for a Video editing software to do some post production work on my animated movie(mp4 file without audio).I use Blender VSE,but it lacks severely in effects like transitions ,FX etc . My ...
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15 views

Final Cut Pro is distorting my music at the very end

I have a problem and I can't find any fix. When I import songs into FCP it sometimes distorts them in the end. But the problem is that they sound fine outside of FCP, and I have paid for them, so it's ...
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1answer
33 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 ...
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28 views

Shorten Video By Removing Quiet Audio Sections with Video

What tools are available to take a video and remove out the silent sections found with its corresponding video track, where the criteria is that the audio goes below a certain threshold? I can do ...