Sequencer strip audio pan not working #47140

New Issue

david mcsween · 2016-01-08T04:26:27+01:00

david mcsween commented

2016-01-08 04:26:27 +01:00

System Information
Win 7 sp1 Corei5 8Gb AMD Radeon HD7470
Operating system and graphics card

Blender Version
Broken: (2.76 #6158a98)
Worked: (optional)

Short description of error
Video Sequencer does not perform pan function on audio strips. It does not render out pan either.

Exact steps for others to reproduce the error

import audio file to VSE
select audio strip and pan audio value to extreme value -2.0 left or 2.0 right
play (no change audio remains centered)
export/render (no change audio remains centered)

**System Information** Win 7 sp1 Corei5 8Gb AMD Radeon HD7470 Operating system and graphics card **Blender Version** Broken: (2.76 #6158a98) Worked: (optional) **Short description of error** Video Sequencer does not perform pan function on audio strips. It does not render out pan either. **Exact steps for others to reproduce the error** 1. import audio file to VSE 2. select audio strip and pan audio value to extreme value -2.0 left or 2.0 right 3. play (no change audio remains centered) 4. export/render (no change audio remains centered)

david mcsween commented

2016-01-08 04:26:27 +01:00

Changed status to: 'Open'

david mcsween commented

2016-01-08 04:26:27 +01:00

Added subscriber: @davidmcsween

Bastien Montagne commented

2016-01-08 10:09:43 +01:00

Added subscriber: @mont29

Joerg Mueller was assigned by Bastien Montagne

2016-01-08 10:09:43 +01:00

Bastien Montagne commented

2016-01-08 10:09:43 +01:00

Confirmed… BKE_sound_set_scene_sound_pan() is called as expected, so issue seems to be in audaspace, Joerg, mind having a look? thanks.

Confirmed… `BKE_sound_set_scene_sound_pan()` is called as expected, so issue seems to be in audaspace, Joerg, mind having a look? thanks.

Joerg Mueller commented

2016-01-08 10:12:25 +01:00

That's not a bug, have you tried +/-1 instead of +/-2? -1 is left and +1 is right, +/-2 is centered in the back which in stereo is the same as 0 panning, you will only notice the difference with more speakers.

Bastien Montagne commented

2016-01-08 13:17:09 +01:00

Eeeh… well, even with -1 or +1 I cannot really hear any panning here (using a headphone)…

Aaron Carlisle commented

2016-01-08 15:35:53 +01:00

Added subscriber: @Blendify

Aaron Carlisle commented

2016-01-08 15:35:53 +01:00

Does the manual state this correctly?

http://www.blender.org/manual/editors/sequencer/strips/audio.html#options

Does the manual state this correctly? http://www.blender.org/manual/editors/sequencer/strips/audio.html#options

Joerg Mueller commented

2016-01-08 16:06:19 +01:00

I just tried, panning is not working. Will look into it as soon as I have time.

Joerg Mueller commented

2016-01-09 02:21:28 +01:00

Ok, I tried again and figured, that the sound I tried with was a stereo sound. As the tooltip correctly states, panning only works with mono sources.

Now when you add sound strips to Blender you cannot specify them to be mono as you can when you simply add a sound, so I added that option to the operator. I also added the option in the properties panel (N key) just below the caching option. Last but not least I found a bug while trying, which is that a sound of the sequence does not get updated when changed in said properties panel.

The patch that does all that is here for now if you want to try: http://www.pasteall.org/63269/diff

If you want to try if panning works you can simply find the sound in the outliner (data blocks -> sounds) and check the mono flag, then it should work.

@Blendify: no, the manual doesn't state it correctly, and it also doesn't state that it only works for mono sounds. -1 is hard left and +1 hard right, everything with abs(pan) > 1 goes to the back with +/-2 being the back center as stated in my first comment.

Ok, I tried again and figured, that the sound I tried with was a stereo sound. As the tooltip correctly states, panning only works with mono sources. Now when you add sound strips to Blender you cannot specify them to be mono as you can when you simply add a sound, so I added that option to the operator. I also added the option in the properties panel (N key) just below the caching option. Last but not least I found a bug while trying, which is that a sound of the sequence does not get updated when changed in said properties panel. The patch that does all that is here for now if you want to try: http://www.pasteall.org/63269/diff If you want to try if panning works you can simply find the sound in the outliner (data blocks -> sounds) and check the mono flag, then it should work. @Blendify: no, the manual doesn't state it correctly, and it also doesn't state that it only works for mono sounds. -1 is hard left and +1 hard right, everything with abs(pan) > 1 goes to the back with +/-2 being the back center as stated in my first comment.

Joerg Mueller commented

2016-01-09 02:40:10 +01:00

Changed status from 'Open' to: 'Archived'

Joerg Mueller closed this issue

2016-01-09 02:40:10 +01:00

Joerg Mueller commented

2016-01-09 02:40:10 +01:00

I committed an updated version of the patch as 85d6759636: Audaspace: Sequencer sound bugfix and mono UI.

If the bug persists after you made sure the sound is mono, feel free to reopen the report.

I committed an updated version of the patch as 85d6759636: Audaspace: Sequencer sound bugfix and mono UI. If the bug persists after you made sure the sound is mono, feel free to reopen the report.

Aaron Carlisle commented

2016-01-09 03:27:52 +01:00

I will write a documentation patch and add you as a reviewer

aecii commented

2018-02-14 05:30:30 +01:00

Added subscriber: @aecii

aecii commented

2018-02-14 05:30:30 +01:00

Edit
Never mind, its working :3
You have to literally Enter "-1" or "+1" for hard panning.
Also, If you slide slow you will notice the subtle change.

Im still seeing this problem in 2.79
2018-01-29

What i've tried:
Loaded stereo audio file into vse, adjusted pan, no change.
Checked mono box, adjusted pan to hard left / hard right, no change.
Converted stereo audio in audacity to mono.
Loaded mono audio track into vse, adjusted pan to hard left / hard right, no change.
checked mono box, adjusted pan to hard left / hard right, no change.

Opened out-liner->data blocks, sounds, checked mono in there. seems to be selecting mono OK.
Adjusted pan to hard left / hard right, no change.

Any ideas?

***Edit*** Never mind, its working :3 You have to literally Enter "-1" or "+1" for hard panning. Also, If you slide slow you will notice the subtle change. --------------- Im still seeing this problem in 2.79 2018-01-29 What i've tried: Loaded stereo audio file into vse, adjusted pan, no change. Checked mono box, adjusted pan to hard left / hard right, no change. Converted stereo audio in audacity to mono. Loaded mono audio track into vse, adjusted pan to hard left / hard right, no change. checked mono box, adjusted pan to hard left / hard right, no change. Opened out-liner->data blocks, sounds, checked mono in there. seems to be selecting mono OK. Adjusted pan to hard left / hard right, no change. Any ideas?

stephen paschke commented

2018-02-14 19:40:36 +01:00

Added subscriber: @Paskperfect

stephen paschke commented

2018-02-14 19:40:36 +01:00

Confirming that under MacOS 10.13.3, Blender Vers 2.79a hash 61335d8 is working as advertised:

Stereo (2-channel) wave file does not pan.
When Mono button is clicked in the strip's properties, wave file will pan from left (-1) to right (+1) on monitoring output.
panning from -1 to -2 and from +1 to +2 re-centers pan in 2-channel output, when Mono button is checked.

Confirming that under MacOS 10.13.3, Blender Vers 2.79a hash 61335d8 is working as advertised: 1) Stereo (2-channel) wave file does not pan. 2) When Mono button is clicked in the strip's properties, wave file will pan from left (-1) to right (+1) on monitoring output. 3) panning from -1 to -2 and from +1 to +2 re-centers pan in 2-channel output, when Mono button is checked.

aecii commented

2018-02-14 20:19:08 +01:00

In #47140#484595, @Paskperfect wrote:
Confirming that under MacOS 10.13.3, Blender Vers 2.79a hash 61335d8 is working as advertised:

Stereo (2-channel) wave file does not pan.

When Mono button is clicked in the strip's properties, wave file will pan from left (-1) to right (+1) on monitoring output.

panning from -1 to -2 and from +1 to +2 re-centers pan in 2-channel output, when Mono button is checked.

Accordin g to the Tool tip, panning only works for monoaural sources. There used to not be a button there for mono. Glad thats fixed.
This is working as intended. (That's the fix for the problem you mention on 1)
This should be centering your rear channels if you have a quadraphonic system or 5.1 surround setup and above enabled (user prefs, system, Channels. Set to 5.1)

2.0 audio setup (stereophonic) pan settings
hard front left -1
hard front right +1
+2 or -2 simply recenter and not applicable for 2.0 audio.
This is functioning like it should.

5.1 surround setup pan settings :
front centered / normal no rear channels. "0"
hard pan to the left: front left and rear left. -1
Center the rear left and rear right channels. -2
hard pan to the right: front right and rear right. +1
hard pan to the right: front right and rear right. +1
Center the rear left and rear right channels. +2

Here's a better explanation:
If you wanted your sound to go in circles clock wise around you, key it like this:
0, +1, +2, -2 , -1 , 0 That's 1 full circle clock wise in audio.

Counter clockwise:
0, -1, -2, +2, +1, 0 That's 1 full circle counter clock wise in audio.
Want it to spin you dizzy? 0, -1, -2, +2, +1, 0, -1, -2, +2, +1, 0 , -1, -2, +2, +1, 0 , -1, -2, +2, +1, 0 etc...

Two things to keep in mind, your system has to be set up for surround audio, and in blender you have to tell it how many channels you have set up under user prefs. See this screenshot: {F2276684}https://drive.google.com/open?id=1Rvb8QOrY2ljCocZg6lEkBiMFmeFm-fnE

~ @aecii
https://twitter.com/aecii_3d

> In #47140#484595, @Paskperfect wrote: > Confirming that under MacOS 10.13.3, Blender Vers 2.79a hash 61335d8 is working as advertised: > 1) Stereo (2-channel) wave file does not pan. > 2) When Mono button is clicked in the strip's properties, wave file will pan from left (-1) to right (+1) on monitoring output. > 3) panning from -1 to -2 and from +1 to +2 re-centers pan in 2-channel output, when Mono button is checked. 1) Accordin g to the Tool tip, panning only works for monoaural sources. There used to not be a button there for mono. Glad thats fixed. 2) This is working as intended. (That's the fix for the problem you mention on 1) 3) This should be centering your rear channels if you have a quadraphonic system or 5.1 surround setup and above enabled (user prefs, system, Channels. Set to 5.1) 2.0 audio setup (stereophonic) pan settings hard front left -1 hard front right +1 +2 or -2 simply recenter and not applicable for 2.0 audio. This is functioning like it should. 5.1 surround setup pan settings : front centered / normal no rear channels. "0" hard pan to the left: front left and rear left. -1 Center the rear left and rear right channels. -2 hard pan to the right: front right and rear right. +1 hard pan to the right: front right and rear right. +1 Center the rear left and rear right channels. +2 Here's a better explanation: If you wanted your sound to go in circles clock wise around you, key it like this: 0, +1, +2, -2 , -1 , 0 That's 1 full circle clock wise in audio. Counter clockwise: 0, -1, -2, +2, +1, 0 That's 1 full circle counter clock wise in audio. Want it to spin you dizzy? 0, -1, -2, +2, +1, 0, -1, -2, +2, +1, 0 , -1, -2, +2, +1, 0 , -1, -2, +2, +1, 0 etc... Two things to keep in mind, your system has to be set up for surround audio, and in blender you have to tell it how many channels you have set up under user prefs. See this screenshot: {[F2276684](https://archive.blender.org/developer/F2276684/Screenshot_from_2018-02-14_14-39-16.png)}https://drive.google.com/open?id=1Rvb8QOrY2ljCocZg6lEkBiMFmeFm-fnE ~ @aecii https://twitter.com/aecii_3d

ChristopherAnderssarian commented

2018-02-14 21:37:19 +01:00

Added subscriber: @ChristopherAnderssarian

ChristopherAnderssarian commented

2018-02-14 21:37:19 +01:00

As someone who has a 7.1 surround setup, I found it tremendously fun working out the value for my speaker setup.
I even made a spreadsheet detailing the values for my reference in the future:

As someone who has a 7.1 surround setup, I found it tremendously fun working out the value for my speaker setup. I even made a spreadsheet detailing the values for my reference in the future: ![Mono Panning.PNG](https://archive.blender.org/developer/F2277034/Mono_Panning.PNG)

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Sequencer strip audio pan not working #47140