Questions tagged [audio]

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12
votes
1answer
975 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 ...
11
votes
2answers
30k 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 ...
11
votes
1answer
949 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 ...
8
votes
4answers
15k views

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 ...
8
votes
5answers
18k 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
8
votes
1answer
608 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.
7
votes
1answer
774 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 ...
7
votes
1answer
783 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 ...
7
votes
2answers
575 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 ...
6
votes
1answer
2k 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 ...
6
votes
1answer
1k 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 ...
5
votes
2answers
1k 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....
5
votes
2answers
2k 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 ...
5
votes
1answer
218 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 ...
5
votes
1answer
652 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 ...
5
votes
1answer
463 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 ...
5
votes
1answer
496 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
5
votes
1answer
682 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 ...
4
votes
2answers
3k 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?
4
votes
3answers
3k 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. ...
4
votes
1answer
277 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: ...
4
votes
1answer
1k 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 ...
4
votes
2answers
698 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 ...
4
votes
1answer
606 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)? ...
4
votes
0answers
950 views

“Unsupported channel layout” Error, when trying to render with AAC-Audio

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...
4
votes
0answers
384 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 ...
3
votes
2answers
1k 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 ...
3
votes
1answer
958 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. Is there a setting where I can ...
3
votes
1answer
277 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 ...
3
votes
1answer
523 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 ...
3
votes
2answers
352 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?
3
votes
2answers
251 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 ...
3
votes
1answer
264 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.....
3
votes
2answers
482 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 ...
3
votes
2answers
742 views

Blender in game volume control?

Is there a way to use python to control the master volume in game. I want that all sounds are controlled by one object so I can do any settings in game.
3
votes
1answer
747 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 ...
3
votes
1answer
1k views

Load, Change & Play Sound in BGE Without using Logic Bricks

Is it possible to load, manipulate (pitch-shift) and play back a sound without using logic bricks and instead using a script in Blender Game Engine? Ideally, this would be possible with using only ...
3
votes
1answer
407 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 ...
3
votes
1answer
217 views

Why isn't audio rendering?

Using the VSE, I have included a strip of audio, the "scene" that I animated, and other video footage. I have been able to hear the audio in playback, however after rendering I cannot hear any audio. ...
3
votes
2answers
4k views

Audio doesn't play?

I'm new to blender and I just downloaded it. I can't seem to figure out what is wrong with the audio. I downloaded a few templates that came with audio but the audio doesn't run. The audio is not ...
3
votes
1answer
637 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 ...
3
votes
1answer
55 views

Unlink text from audio

I'm really new to blender, I actually just started using it today. I'm usually pretty good at using software like this but I underestimated the difficulty of the tutorial I was trying to follow. ...
3
votes
1answer
557 views

Using multiprocessing to speed up multiple sound bakings

What I wanna do is bake sound with different frequency ranges to different objects. It is done pretty simply using Python scripts. However, I am seeking for a way to speed this process up by utilizing ...
3
votes
0answers
181 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 ...
3
votes
0answers
273 views

Audio Problem: In Blender video editor and the rendered file having audio but once I uploaded it to twitter the audio doesn't work

I was doing video editing on Blender. The frame rate syncs with the audio and I set the audio to be in .mp3 file. In the Blender's video editing the audio works. I also played the rendered file with ...
3
votes
0answers
210 views

Can I use ffmpeg audio filters on encoding?

ffmpeg has a ton of audiofilters available, and for a current project I need a compressor on the audio mix (not on separate tracks, just at the end during the encoding process). Is there a way to ...
3
votes
0answers
441 views

Best lossless video output format for later conversions for web

I'm creating an animation (with sound) in blender that's gonna be an HTML5 video. As browsers are quite picky, I'll probably need to embed the video into the web page in multiple different formats for ...
3
votes
0answers
413 views

Blender doesn't show “Jack” in user preferences system audio

I would like to use Blender with Jack (Jack Audio Connection Kit), but it's not available in user preferences > System tab... I'm using Blender 2.77 on Linux Kubuntu 16.04 and jack2 (v1.9.11), with ...
3
votes
1answer
510 views

Audio/Video out of sync in rendered video

I've looked at some similar problem descriptions on this, but mine is slightly different. When I edit a music video with several cut scenes, in VSE the audio/video will be in sync on each cut until I ...
2
votes
2answers
1k 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 ...