Audio mixdown ignores curves #44902

Closed
opened 2015-05-31 11:17:49 +02:00 by Daniel Pocock · 6 comments

System Information
Debian

Blender Version
Broken: 2.72.b+dfsg0-3
Worked: (optional)

Short description of error
When rendering the audio strips to a file using the audio mixdown capability, the curves controlling volume are ignored.
When playing back the scene in the Blender UI, the curves are respected and the volume of each audio strip sounds correct.
Problem observed using both FLAC and Ogg-Vorbis output.

Exact steps for others to reproduce the error
Create a scene in VSE
Add one or more audio strips
Add some keyframes setting the volume at different levels throughout the audio strips.
Go to the render properties panel.
Click the Audio button.
Specify a filename.
Click the Mixdown button.
Play back the audio file, observe that sound is audible even for those periods where the volume was 0.

The issue is also discussed here, I am not the only person who has observed this:

http://blenderartists.org/forum/showthread.php?178371-Audio-Mixdown-Issues-in-2-5

**System Information** Debian **Blender Version** Broken: 2.72.b+dfsg0-3 Worked: (optional) **Short description of error** When rendering the audio strips to a file using the audio mixdown capability, the curves controlling volume are ignored. When playing back the scene in the Blender UI, the curves are respected and the volume of each audio strip sounds correct. Problem observed using both FLAC and Ogg-Vorbis output. **Exact steps for others to reproduce the error** Create a scene in VSE Add one or more audio strips Add some keyframes setting the volume at different levels throughout the audio strips. Go to the render properties panel. Click the Audio button. Specify a filename. Click the Mixdown button. Play back the audio file, observe that sound is audible even for those periods where the volume was 0. The issue is also discussed here, I am not the only person who has observed this: http://blenderartists.org/forum/showthread.php?178371-Audio-Mixdown-Issues-in-2-5
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

Added subscriber: @pocock

Added subscriber: @pocock
Joerg Mueller was assigned by Campbell Barton 2015-06-01 01:39:19 +02:00

Added subscriber: @ideasman42

Added subscriber: @ideasman42

Looks like this may a duplicate of #43853 which was fixed for 2.74, Please test with a 2.75 test build to see if its resolved.

Looks like this may a duplicate of #43853 which was fixed for 2.74, Please test with a 2.75 test build to see if its resolved.
Author

I would agree it looks like a duplicate.

I try to avoid that when using bug trackers, I did a search in the bug tracker and Google before opening a new bug.

In the bug tracker, starting at the home page, I clicked "Browse Bugs", "Edit Query" and then in the "Contains Words" box I typed "Audio Mixdown", it appears that closed bugs are excluded by default. Maybe showing recently closed bugs would be helpful.

Can I close the duplicate myself or does somebody else need to do it?

I would agree it looks like a duplicate. I try to avoid that when using bug trackers, I did a search in the bug tracker and Google before opening a new bug. In the bug tracker, starting at the home page, I clicked "Browse Bugs", "Edit Query" and then in the "Contains Words" box I typed "Audio Mixdown", it appears that closed bugs are excluded by default. Maybe showing recently closed bugs would be helpful. Can I close the duplicate myself or does somebody else need to do it?
Member

Closed as duplicate of #43853

Closed as duplicate of #43853
Sign in to join this conversation.
No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset Browser
Interest
Asset Browser Project Overview
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
Interest
EEVEE & Viewport
Interest
Freestyle
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
ID Management
Interest
Images & Movies
Interest
Import Export
Interest
Line Art
Interest
Masking
Interest
Metal
Interest
Modeling
Interest
Modifiers
Interest
Motion Tracking
Interest
Nodes & Physics
Interest
OpenGL
Interest
Overlay
Interest
Overrides
Interest
Performance
Interest
Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds & Tests
Interest
Python API
Interest
Render & Cycles
Interest
Render Pipeline
Interest
Sculpt, Paint & Texture
Interest
Text Editor
Interest
Translations
Interest
Triaging
Interest
Undo
Interest
USD
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Interest
Video Sequencer
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Blender 2.8 Project
Legacy
Milestone 1: Basic, Local Asset Browser
Legacy
OpenGL Error
Meta
Good First Issue
Meta
Papercut
Meta
Retrospective
Meta
Security
Module
Animation & Rigging
Module
Core
Module
Development Management
Module
EEVEE & Viewport
Module
Grease Pencil
Module
Modeling
Module
Nodes & Physics
Module
Pipeline, Assets & IO
Module
Platforms, Builds & Tests
Module
Python API
Module
Render & Cycles
Module
Sculpt, Paint & Texture
Module
Triaging
Module
User Interface
Module
VFX & Video
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
3 Participants
Notifications
Due Date
The due date is invalid or out of range. Please use the format 'yyyy-mm-dd'.

No due date set.

Dependencies

No dependencies set.

Reference: blender/blender#44902
No description provided.