Questions tagged [audio]

Audio can take the form of sound strips or speakers in Blender both intended for adding audio to animation renders. Use this tag for questions about either form of audio in Blender.

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14 votes
4 answers
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No sound in VSE

I've been working with the VSE for a while and everything was fine. But all of the sudden, when I play the preview the sound doesn't play. I think I must've disabled it somewhere, but I can't manage ...
YoMismo's user avatar
  • 630
13 votes
1 answer
2k views

How do I animate emission with an audio file?

In cycles, I want an audio file of speech to cause an emission surface to change the amount of emission strength to match the volume from the voice actor's audio file. No sound = 0 strength Loudest ...
Eric Huelin's user avatar
  • 2,233
11 votes
2 answers
47k views

VSE: How to render a video with audio? [closed]

I want to play a music strip with a video in the video editor but the video has no music when I play it. I've rendered it but it still doesn't have sound. How can I render and play the video with ...
adrian salinas's user avatar
11 votes
1 answer
2k views

Spatial Audio Render

How can I export B Format ambisonic audio in a render. Blender uses OpenAL, which does allow for First Order Ambisonic (4 mono channels, WXYZ) rendering. My goal is to create a stereoscopic, 360 ...
Aaron_A_Anderson's user avatar
11 votes
2 answers
2k views

How to accurately add sound effects on each rigid body collision?

Emitting sounds with different intensity at rigid body collisions is what I want. I couldn't find a tutorial on it. Sorry I didn't post any reference image this time.
Shankar Subedi's user avatar
10 votes
5 answers
29k views

Error AL lib: UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead. What can I do?

I have Win 10 and when I open Blender I have the error: AL lib: UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead
user avatar
8 votes
2 answers
2k views

Is There a Way to "Render" the sound itself in Blender?

I know this sounds like a ridiculous/newbie question, and I know it's been asked before (and yes, I am currently aware that there's no 'official' method for doing this), but is it theoretically ...
Severan's user avatar
  • 99
7 votes
2 answers
8k views

ALSA lib confmisc.c:768:(parse_card) cannot find card '0' and etc Errors happend in Ubuntu Server14.04

I am using Amazon EC2 VPC, but when I start the Blender I got some errors: ...
Tao Yan's user avatar
  • 141
7 votes
1 answer
1k views

How can I set the sample rate for Audio?

I'm using Blender (v2.72) to do some video editing. I record some voice audio at 96kHz and then drop it into the VSE to sync the audio to the scene. Once I make my cuts, I render just the audio to do ...
Harry Glinos's user avatar
7 votes
1 answer
3k views

How to Draw Waveform Automatically

I'm doing some video editing in Blender, and every time I drop a clip in to edit, I always find myself selecting the audio and then telling Blender to draw the waveform using Adjust → Sound → Display ...
Anson Savage's user avatar
  • 3,342
7 votes
1 answer
1k views

Get raw sound data in Blender using python

I would like to use Blender to construct a mesh based on a sound file. I've seen the bake sound to graph function, and I tried to look in the source code how it works internally. This function is ...
danalizieors's user avatar
7 votes
2 answers
2k views

How to play a sound after script finishes?

Is there a way to play a sound after a script finishes ? For scripts taking between 30min and many hours (like the delaunay triangulation one from doomlysz), it's good to not have to check every 10 ...
matali's user avatar
  • 2,811
7 votes
1 answer
1k views

Render in 3D audio for YouTube

I'm trying to render 3D audio so that when you turn the view on YouTube, the audio will change depending on what direction you are looking in. Please note that when I say this, I mean VR video and ...
CStafford-14's user avatar
6 votes
4 answers
23k views

No audio output in rendered video file

I am trying to render a video (that is not a .dvd file) with audio using Blender. So far, I haven't had any success; all of my rendered clips have had the audio missing from the playback. I've tried a ...
AAC's user avatar
  • 87
6 votes
1 answer
4k views

How to move an object with sound?

I'm making an intro with music, and I have objects that need to move with the music. It's not on the beat, slightly random, so I can't use regular intervals. Is there a way to do this? I'm not sure if ...
DragonHeart's user avatar
  • 1,524
6 votes
1 answer
2k views

Can blender be used to analysis the acoustics of a 3D designed room or hall?

Blender supports ray-tracing for the visuals. Can this feature be used to support audio-wave propagation, delay and frequency response in a 3D designed room? --HPS
HPS's user avatar
  • 61
5 votes
2 answers
2k views

Can I make 3D spheres to deform/pulse in sync with audio?

How can I make a sphere-like object pulsate with the beat of a song? Is this possible to do in Blender, or do I need to get Adobe After Effects? Here is an example of what I mean: https://www.youtube....
Akidus's user avatar
  • 417
5 votes
2 answers
8k views

Waveform not showing while checking audio scrubbing

When I add an .mp3 sound file to the VSE and go to Playback and check Audio Scrubbing, I don't get the waveform. Why?
jik bik's user avatar
  • 769
5 votes
3 answers
6k views

No audio playback in VSE but rendered file has audio

I can not get audio to play out of my speakers whilst using Blender 2.77a in the Video Sequence Editor. However when I rendered out a file (mp4) it contains the audio and can be played back on VLC. ...
Lincoln's user avatar
  • 71
5 votes
2 answers
3k views

Simulate sound waves (physics)?

Can Blender be used to simulate the transmission of sound waves through a medium (most likely air)? What kind of additional scripting, if any, would be needed to actually render the collisions as ...
Stan's user avatar
  • 153
5 votes
1 answer
1k views

Extract audio to file from movie clip - with Blender?

In this excellent answer I learned how to extract a series of individual frames from a movie clip node. This solution suits me well - there is a python script, and a few nodes, and it runs ...
uhoh's user avatar
  • 2,667
5 votes
1 answer
2k views

Smoothing a baked f-curve

I have an f-curve baked from an audio file, but finding it too jittery for my usage: It there a way to smooth the baked curve? I've looked through the modifiers, expecting to find a filter, but there ...
ajwood's user avatar
  • 10k
5 votes
1 answer
696 views

Sound export in 44100 Hz instead of 48000 Hz, why?

I started to use Blender as a solution for video editing, very powerful and agreeable. Nevertheless, I have a bug that I can't resolve. The sound of my video is in 48kHz, my users preferences are ...
Magali's user avatar
  • 53
5 votes
2 answers
754 views

Can I render ambisonic b-Format audio?

Im looking for a way to render spatialized sound to 1st order ambisonic b-format. I assumed the 4ch option in scene audio settings was the key. But that just seems to render a quad speaker setup? The ...
Adde Stromberg's user avatar
5 votes
1 answer
820 views

Is there a way to make baking sound to F-curves more accurate?

At the moment I've got a script that generates a bunch of bars, and bakes a narrow range of frequencies to each bar's Z scale. It ends up being a pretty simple spectrogram that I composite onto the ...
Burritosaur's user avatar
4 votes
1 answer
384 views

How come when I render my animation, the audio is clipped when I stitch together the pieces?

I have a slow computer, and I have an animation of 4400 frames. If I render all at once, it would crash. So I made this Python script to try to help me: ...
user avatar
4 votes
1 answer
2k views

Sound real-time spectral analysis frequency peaks

Is there a way to analyze a sound file in blender (preferably in real-time) to identify the peak frequencies so that I can map certain frequencies to certain object attributes (e.g. material color)? ...
DolphinDream's user avatar
4 votes
2 answers
896 views

Bake sound to F Curve giving square curves? [closed]

Just working my way through this tutorial . . . Got to about 5.55 in the video and hit a snag. My soundfile loads into the graph editor, but instead of appearing as a series of curves, it shows up as ...
Reverend Speed's user avatar
4 votes
2 answers
1k views

Why does my rendered movie clip have no audio?

I am a Blender newbie, and know that I will have to supply additional info...Please be patient with me :-) I followed this video by Oliver Villar, https://www.youtube.com/watch?v=nU8zqn091rM. I am ...
Roger Creasy's user avatar
4 votes
1 answer
1k views

Using VSE. Rendered video and now nothing is showing up.

I've been using the VSE for awhile now and have yet to encounter this problem. I finished editing my video and clicked render animation. Everything seemed to be going fine. After the video finished ...
Andrewmeda's user avatar
4 votes
0 answers
2k views

"Unsupported channel layout" Error, when trying to render with AAC-Audio [closed]

I try to render a Video with Blender's video editor. Under Output I set FFmpeg video as file format. Under Render I set Container...
Takiro's user avatar
  • 141
4 votes
0 answers
713 views

Video editing multichannel audio

Is there a way to render a video with multiple audio tracks? I've found these two subjects related to the import of files with several audio channels: How do I load an mp4 video with multiple audio ...
G Viaud's user avatar
  • 145
4 votes
2 answers
1k views

VSE correcting framerate without shortening strips or changing the speed of strips

currently I'm editing a small movie in Blender VSE and I've accidentally choosen the wrong framerate (50 fps instead of 25) as I started and now when I want to correct it, my sound strips end up ...
Thorbijoern's user avatar
4 votes
1 answer
1k views

Export single strip in VSE

I have one long audio strip in the V.S.E. and I split it into multiple pieces using hard cut, SHIFT+K. Now I could delete the other strips and export one, and then make a new file, cut out the one I ...
Unnamed Sentient Being's user avatar
3 votes
2 answers
2k views

Why can I not import an .mp3 file through Python scripting?

I'm following this tutorial and I'm about 29 minutes in. I'm using the .mp3 mentioned in the tutorial. Here's my latest .blend... My script will create a single cube and switch the window context to ...
Reverend Speed's user avatar
3 votes
2 answers
2k views

VSE channel's volume

Helo, can't figure out how to change the volume of multiple strips or one separate channel. i have a video with multiple audio channels, one for background music, one for audio effects, and one for ...
LDCO's user avatar
  • 581
3 votes
1 answer
1k views

Voice over in Blender

When my character speaks, I use shape keys to move the mouth, just up and down. If I wanted to add a voice, do I need to record this separately and then insert as audio? I'm asking if Blender has a ...
Kamran Ali's user avatar
3 votes
2 answers
3k views

How to move baked curves in graph editior?

I just baked sound to the animation which works fine. What I want to know if there is a way for me to move the curve of the sound I just made backwards (to - frames) so it will start half way through ...
Chickenator's user avatar
  • 1,793
3 votes
1 answer
4k views

How to sync audio in blender 2.8?

I have a question. How to sync the audio with your actual video in blender 2.8 video editor, because when I found out that blender finally released, I was confused how to sync the audio and the work ...
Bob's user avatar
  • 31
3 votes
1 answer
327 views

How can I output audio at 48khz?

Very noob question, I know, but I can't find the answer on Google or in the manual. I'm editing a movie file in the VSE, and nothing else. When I want to render it out, the audio is at 44.1kHz, and ...
JasonC's user avatar
  • 133
3 votes
2 answers
22k views

How to add audio to Blender 2D animation?

All the tutorials I have seen for adding audio to a 2D animation in Blender involved using the video editor. Is there any way where you can just directly import audio to your animation?
DDD's user avatar
  • 141
3 votes
1 answer
709 views

How do I render out a single mono audio track?

I have a single audio strip (its occupying a single channel of the 32 in the VSE) that is mono (a voice recording done in audacity as a mono track). I imported it into blender. I want to render it ...
kite's user avatar
  • 429
3 votes
1 answer
1k views

Video Editing stereo tracks

I'm editing a video that needs a stereo effect (a sound moving from right to left) and I have the audio file without the effect. I just want to have two separate audio strips from that file for each ...
YoMismo's user avatar
  • 630
3 votes
2 answers
679 views

Rendering Sound In Video Sequencer

How do you render sound with your video in the video sequencer? I already placed a sound strip with the video strip but how do you render the sound with the video?
user avatar
3 votes
1 answer
2k views

What's the range of values on a sound-baked f-curve?

I'm doing a lot of sound baking at the moment, but it's kind of hard to work with since I don't know what kind of values to expect out of the f-curve. Common sense would say that it would range from ...
Burritosaur's user avatar
3 votes
2 answers
402 views

Play a sound triggered from emitting a particle

I have a spaceship and it has a particle system for firing lasers. I am wondering if there is a way to play a sound when it emits a particle. I have tried grouping the particle with the speaker and ...
HamBob's user avatar
  • 117
3 votes
1 answer
364 views

sound_bake by script : unsupported audio format error

I can't get the sound_bake function to work by script while it works fine from the menu (Unsupported audio format). Any idea ? I have no backslashes in the path and my blender build includes ffmpeg.....
Nikos_VSE's user avatar
  • 419
3 votes
4 answers
2k views

Is it possible to hear sound in the viewport

I would like to know if there is a way to hear added soundtracks in the viewport of Blender, while the animations are playing. I'm using Blender 2.92. I added sound in the Video Sequence Editor, but ...
Dan Gugelberger's user avatar
3 votes
1 answer
739 views

Smooth Realtime-Audio Reaction in Animation Nodes?

I am animating certain objects in a scene using audio in animation nodes. The current setup makes my models react in a very aggressive way to the audio. Is there a simple way to smooth the reaction ...
Glen Montanaro's user avatar
3 votes
2 answers
798 views

Scene playback with wrong/unwanted Sequencer audio

I have a 30 second Scene, that I put at 3 minutes into my VSE - together with some additional "scene music". When I play this in the VSE, it works fine - both audio and video. But when I go to an ...
David Steiner's user avatar

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