Questions tagged [audio]

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

68 questions with no upvoted or accepted answers
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54 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 ...
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0answers
219 views

Automating audio processing in Adobe Audition

I need to run a predefined set of filters on WAV files using Audition. The commands themselves need to be executed on the command line; I don't have the option of using Audition's Batch processing ...
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0answers
32 views

Is it possible to automatically generate highlights from a video using sound?

I am looking to create an automatic highlight tool to generate highlights using sound, for example a sporting event would have an important part when there is a louder sound so, that part should be ...
2
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0answers
215 views

Why is audio generated by avconv choppy?

I am using avconv to generate an AV stream, and the video is perfect, but the audio is very choppy using iOS Safari. Can anyone tell me what is wrong with my audio stream that's causing this? When ...
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0answers
21 views

SDI or HDMI to USB3 interface with 16 audio channel support

I'm looking to take a video feed and multiple audio channels into a Windows laptop. The audio channels are essentially live event commentary in various languages, which the laptop will then stream to ...
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0answers
126 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 ...
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0answers
23 views

Is it possible to cut video based on audio?

I wonder if any of you guys know some solution and can help a small team of inexprienced (in terms of video) podcasters. We're producing our Audio podcast in a purely audio editing software (Reaper) ...
1
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1answer
103 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 ...
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0answers
26 views

Consumer grade vs professional audio

Newbie issue! I was given 12 miniDV tapes and the Canon ZR900 camera they were recorded on to transfer onto memory sticks. I used FW400 into a Dell XPS 9100 to capture using Filmora. No problems at ...
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0answers
979 views

how to add audio to exist video using FFMPEG at specific time?

I have video file (.avi) that 10 minutes long. I also have audio file (.wav) that is one minute long. I need to add the audio to the video, but the audio needs to start at one minute in to the video. ...
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0answers
226 views

How does speeding up / slowing down audio with FFMpeg work technically?

I've been looking into FFmpeg's tools for speeding up and slowing down portions of video using their built in filters (such as here). For video speed filtering it discusses a little bit about you can ...
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0answers
230 views

Trying to understand the delay converting a sequence of images to video

I am using java to create image files that I am converting to video using FFMPEG. I am creating the midi and audio simultaneously on reaper then using the duration of the notes on the midi file to ...
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0answers
539 views

How can I mux video and audio from separate sources that're at different frame rates?

I'm having trouble muxing the video from one source with the audio from another because the audio drifts over time. As I mentioned in the title, the sources are at different frame rates, the video's ...
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0answers
107 views

Converting an AAC Mono file to AAC Stereo, higher audio bitrate?

I hope someone can help with this issue. A client is sending me videos recorded with iPhone; with dual-channel MONO AAC-LC audio, an average of 89 kbps. It's mono but dual-channel. I'm editing with ...
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0answers
19 views

Are there any omni directional stereo mics for camcorders

I am looking for a good microphone to film trains as they go by. I have been looking, at the Opteka VM-200. But I am concerned that the shotgun directional characteristic will not work well, since I ...
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0answers
41 views

What's the best balance price/quality audio recorder for meetup and small conf

I am doing some meetup recording and I want to automate the thing. Here are my current devices to record any meetup: - OBS - logitech c922 - AverMedia LGP Lite I need a better sound that the ...
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0answers
168 views

Prelude and Premiere Workflow with DSLR and External Audio

This is a little long, but hopefully will make sense... I am shooting with a GH4 to record interviews and cuts the videos into 4GB segments. I'm recording the audio with a Zoom (external recorder). ...
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0answers
846 views

Audio drift after uploading to YouTube?

I recorded myself playing some games and then uploaded the videos to youtube. I noticed that after youtube finished all processing and made multiple resolutions available that the audio and video ...
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0answers
1k views

Show audio waveform in FCP video?

How can I show the audio waveform in a video similar to the one below? I'm using Final Cut Pro X on OS X 10.10 Yosemite.
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0answers
295 views

ffmpeg - Specify FC (center) instead of mono‏

I am trying to specify a single mono channel to be named 'Center' when viewed in Quicktime player, I know that technically specifying FC is mono, but in my user case I need it to actually be named '...
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0answers
33 views

Streaming 2 local and some remote players audio issue

I am trying to set up for streaming. Here is what i want to accomplish. I will be the only one streaming video and streaming from the same computer i am playing on. I have a mixer attached to my ...
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0answers
32 views

Sony Vegas 12 Not Rendering Parts Of Video

Using Sony Vegas Pro 12 and i am rendering a video. However the rendered video hasn't got any audio and some video parts are black. I am using a some transitions and i am currently trying to fix the ...
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0answers
276 views

Losing audio in re-encoding with ffmpeg

I have some DVDs I want to save MP4s from. The video files are VOB files. I can play them if I change the extension to .mp4, but I can't use the seek bar in Windows Media Player. Also, the files are ...
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0answers
581 views

How to transcode HLS with multiple audio tracks

I am trying to create an HLS playlist with multiple audio streams. I have the following files: videoHD.mp4 videoSD.mp4 audioEN.mp4 audioFR.mp4 audioIT.mp4 How would I transmux these all together in ...
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0answers
221 views

How to sync the dubbed audio to make a dual audio .avi

I have a show with the original audio, XviD encoded with mp3 in a .avi. The local TV has started broadcasting the show with the dubbed audio. I captured some of the shows off of the TV broadcast, ...
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0answers
61 views

Equipment & Software for video bridge (video link) event

I need to create a portable setup for events built around a video bridge: The performer is abroad the audience & presenters are in-house The performer needs to see the audience & presenters ...
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0answers
898 views

FFMPEG Sync Audio & Video From Pi Camera & USB Microphone

Posted this in the Raspberry Pi community, but it got closed for being off topic. Reposting in the hopes that it is now in the right place. I am trying to stream low-quality audio & video from my ...
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0answers
484 views

How to detect which part of the video is using copyright audio on facebook

I am having a issue i.e: Facebook deletes the video uploaded by me and says It contains copyright audio. It is 6min video so how could I know which part is being aborted by Facebook. Thanks a million....
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0answers
160 views

Filter commentary from AC3 stream in MKV

a question from a a total non-expert in video/audio editing. I have an MKV file (let's call it X) which contains an AC3 file which has some constant and unnecessary (for me) comments for visually ...
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1answer
77 views

Create cuts automatically by audio wave form in Premiere Pro CC

I always cut my videos of the trips I'm doing. And I noticed that it is often the same that I cut out the parts where nothing is said and keep only the parts where somebody is talking. Is there a ...
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0answers
4 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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0answers
46 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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0answers
21 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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0answers
10 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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0answers
19 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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0answers
24 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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0answers
26 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
32 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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0answers
11 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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0answers
31 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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0answers
12 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
26 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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0answers
20 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 ...
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0answers
6 views

Audio subtly out of sync with video - how to fix?

I have an MKV file that has an issue with the audio - it subtly lags behind the video. They start in sync, and then over the course of the whole clip they drift out of sync. My first idea was that ...
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1answer
11 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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0answers
8 views

Sync Audio - Varying Stretches and Shrinks

We have a 3 webcam setup, and a desk microphone. Each camera is recorded separately, and in post we are trying to show all 3 cameras at the same time, but use the audio from the desk mic for the ...
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0answers
8 views

How to determine audio full LCID language identifier from a video file?

I've successfully created a video with 3 language audio tracks (English, French, Spanish). When playing back in a video player that recognizes the languages, I can correctly switch between these ...
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1answer
20 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 ...
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0answers
11 views

Dead Cat for BMPCC4k

I've seen dead cats for the microphones of DSLRs and the GoPro nad was thinking if there is a deadcat for the internal mics of the BMPCC4k. I only use the mics as a reference point, as I don't have ...
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0answers
7 views

Audio disappears partly after rendering VEGAS MS 15 Platinum

Having problems with Vegas MS 15 Platinum rendering- irrespective of the length of the project, the audio will disappear not completely after rendering, but about 30 min from the beginning of the ...