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19 votes
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How do I animate emission with an audio file?

For convenience later on, I'll add a Value node, which you can connect to the emission strength or any other input. Set a key on the property, which you want to be "animated" by the sound wave. In ...
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  • 24.5k
14 votes

VSE: How to render a video with audio?

In blenders preferences under system you have a few options for the software used for sound, this may help playing sound from blender's VSE. For the output video you need to check that you have ...
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  • 53.4k
9 votes

No audio output in rendered video file

Open a Properties Pane. Scroll down until you see the "Encoding" dropdown tab. You'll see Audio Codecs. If "None" is selected, there will be no audio. Here is an example.
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9 votes

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

I had so much fun re-creating this effect that I ended up doing it twice. You can see the final results (with sound) here. Unfortunately a step-by-step guide to creating exactly what I made would be ...
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  • 152k
9 votes

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

While this is a harmless error, this is how you can fix it: Open user preferences with Ctrl+Alt+U and go to the System tab In the sound settings below, change the sample rate to 48000 kHz and save ...
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  • 11.8k
8 votes

Waveform not showing while checking audio scrubbing

Turning on the waveform display is a separate setting in the 'View' menu: If you have a long MP3, you may have to wait for the previews to generate (after turning 'Waveforms On'):
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7 votes
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How to move an object with sound?

You can bake sounds to fcurves: Insert a keyframe (I) on the transform channel you want to be controlled by the sound (e.g. Z scale). In the Graph editor, press ...
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  • 152k
7 votes
Accepted

Get raw sound data in Blender using python

Say with a Plane object selected, you bake a sound file to its location keyframes. ...
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  • 37.9k
7 votes
Accepted

How to Draw Waveform Automatically

When you have one or multiple Sound strips you can check Draw Waveform in the Strips Sound Properties (on the right, open VSE's Properties Panel pressing the N key) per Strip. When you want to set ...
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  • 3,231
7 votes

Workflow for a short animated film: what to do first, music or video?

By short animated film I assume it is story driven and that there might be dialog. The process is this: write the script (with dialogue) create storyboard, mood, concept art record dialogue with ...
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6 votes

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

Use -noaudio option works, like this ./blender-2.74-linux-glibc211-x86_64/blender -b -noaudio "Blender/ball.blend" -x 1 -f 1 -o // hope could help someone!
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  • 121
6 votes

No sound in VSE

I can think of a couple possibilities: Your audio track is muted in the VSESelect the track hit n deselect the 'eye' button Your sequence is no longer pointing to the audio file because you've moved ...
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  • 1,153
6 votes

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

This is super easy & Fun: in the 3D viewport Add >> Mesh >> Sphere. With the Sphere selected hit I >> Scale. Split your 3D view and in the next view goto the Graph Editor. on the menu bar: Key >> ...
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  • 4,535
6 votes

Spatial Audio Render

Can use the mixdown operator to create an "audio render" of the scene. Mixdown is next to the render animation button in the latest versions of Blender (There once was a mixdown button on the audio ...
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  • 77.7k
6 votes

Voice over in Blender

To drive lips from an audio file - For this exercise both lips are simply curve-paths bevelled with a small diameter oval and left as curves. The animated gif pic below is the Graph Editor and where ...
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  • 3,685
6 votes
Accepted

How many dB (Decibel) are at the extreme limit of the Waveform?

Decibel is a comparative unit, like percentage but logarithmic, so red lines say "You went over 100%". But 100% of what? It's 100% of the hardware and software capabilities. In professional ...
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5 votes
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No sound in VSE

Ok I found the problem and the solution. As the link I posted in the edited question suggested, the problem was some twisted setup, the last update should have messed something. What I have done has ...
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  • 630
5 votes

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

I would write a python script to keep track of the object's velocity. When the velocity suddenly decreases (on collision) I would play the sound, setting its volume based on how big the deceleration ...
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  • 649
5 votes

No audio playback in VSE but rendered file has audio

To enable the sound in my Video Sequencing Editor, I had to change the system setting for audio device from OpenAL to SDL. Doing this seemed to jar loose the sound so that it would play. I was even ...
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  • 71
5 votes

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

There is active research happening in this field currently and Stanford is in the forefront of this research. They presented their work at SIGGRAPH, 2018. I hope soon it can be integrated to Blenderv2....
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4 votes
Accepted

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

I just tested your file with one of my own .mp3s and found two problems: The path contains backslashes. This is standard in Windows, but has special meaning in many programming languages. The ...
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  • 4,684
4 votes
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Bake sound to F Curve giving square curves?

The issue was that in setting up the custom property 'Sound'. In the video, the tutor enters '0.0' into the Property Value. I didn't notice the decimal and entered '0', thus switching the property to '...
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4 votes
Accepted

How can I output audio at 48khz?

In the 'Scene' buttons, there is an Audio Panel. It has a Format: label, under which you can adjust the Channel count and Rate. Then you can render Audio from the render panel (also known as Mixdown)....
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  • 44.4k
4 votes

No sound in VSE

I have done this by: Select Render Properties Go Down Expand Enconding On Audio Codec: Choose dropdown from None to MP3 Now you can hear the sound, cheers!
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  • 303
4 votes

How to render from VSE, and not 3D scene?

Make sure, under your Render Properties in the Post Processing panel you have Sequencer checked.
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  • 3,231
4 votes

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

To fix this issue you just do like in pictures In priorities sound and set to 44100 Hz then ok and run blender , that all
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4 votes
Accepted

GxAV Addon does not do anything more than adding static bars

The GxAV addon was last updated on GitHub three years ago. I didn't test it but I think the addon is broken in the current blender version. In this case you could try to use an old version of blender. ...
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  • 683
4 votes

Advance audio editing for blender

Blender has a Video Sequence Editor which allows very simple editing of an audio clip such as cutting and volume adjustment. Audio clips can then be placed in sync with a video clip to then be encoded ...
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  • 53.4k
4 votes

How to add a new audio track to a video clip

Okay, so I'm posting this answer to my own question in case someone else has the same problem as I did. If you feel this isn't helpful, please feel free to vote to delete it. The issue was that I ...
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  • 103

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