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IDProjectCategoryView StatusLast Update
0000326Cinelerra-GG[All Projects] Featurepublic2021-01-11 18:55
ReporterLukas Assigned To 
Status newResolutionopen 
Product Version 
Target VersionFixed in Version 
Summary0000326: A way to set an audio track to "left", "right" or "middle (mono)"?
DescriptionWould it be possible to add some way to set an audio track to "left", "right" or "middle (mono)"? I can use "Audio -> "Map 1:1" to set two audio tracks to "left and right". But if I want something else, for example only one track to the right, or all tracks to the middle (mono), I must do it using a mouse in the small rectangle window in the left panel, which isn't very precise and I am never sure if it's exactly "left", "right" or "middle".
TagsGUI, Pan




2021-01-11 18:55

manager   ~0004507


Previous conversations were moved to:


2021-01-10 21:40

administrator   ~0004501

Oh, you already sent a post in the meantime while I was doing research here and writing the new post.


2021-01-10 21:37

administrator   ~0004500

Hi @Michi,

- Did you get an email when you signed up for the forum?
- Did you reset your password as it says in the email?
- Are there any script blockers active for the Cinellera website, if so can you disable them for our site?
- Are you using the same email address for the forum as for the Mantis bug tracker?

If it is indeed the same email address, I see that you are present in our database, however it seems that you have specified a different username in the forum than in Mantis bug tracker. Could it be that you are trying to log in to the forum with the bug tracker name?


2021-01-07 12:54

manager   ~0004487

Thank you. I don't know if you are subscribed to the forum. In order not to overstretch this thread with OT topics, I've opened a post in the Audio Editing section of the forum for anyone interested in the discussion.


2021-01-04 15:31

reporter   ~0004465

I have found the error: For the right channel you can't just insert this effect: L_Mono to Stereo splitter.
I have to insert it like you showed.
Then everything works out fine.

Do you know anything about compressors? That is currently still my main problem with Cinelerra.

grafik.png (43,092 bytes)
grafik.png (43,092 bytes)


2021-01-04 12:59

reporter   ~0004457

oh, yes, now it works for me too. Don't know what I had done wrong. Thanks a lot


2021-01-04 12:40

reporter   ~0004456

For me, L_Mono to Stereo splitter works well.
Are you sure you are using it correctly?
I have made a little video that shows you how to use it.

00:00:05 When you read it, you can see (white frame) that there is nothing in the right channel.
00:00:14 Placing the filter
00:00:41 When reading, you can see (white frame) that there is the same content on the right channel as on the left one.

L_Mono to Stereo splitter.webm (1,419,451 bytes)


2021-01-04 11:17

reporter   ~0004455

@fary54 and @PhyllisSmith
because "L_Mono to Stereo splitter" does not work for me at the moment, I do it this way:
Switch off the right channel or delete it.
Left channel: Set pan so that the the green dot is in the center so that the red speakers show 1.0 is visible on both sides.
it looks like it will work well.

Thank you both


2021-01-04 10:28

reporter   ~0004453

Thank you for your commitment.
Unfortunately, when I insert L_Mono to Stereo splitter on the left track, nothing happens. What can I do better there?


2021-01-04 09:42

reporter   ~0004451

Personally, in this case, I don't change anything in the format menu and nothing in the patchbay either.
As @Michi explains, if the right channel is recorded 20 dB lower I simply place:
- an "L_Mono to Stereo splitter" filter on the left track.
- the shared effect "L_Mono to Stereo splitter" from the left track to the right track

So I stay in stereo for cinelerra but, of course, when listening, I'm in mono.


2021-01-03 22:21

manager   ~0004450

'So how can you use only one (e.g.) the left one in Cinelerra?'

I have zero audio skills when it comes to audio in Cinelerra, but there are some easy ways to manipulate the channels.
1) the Settings pulldown, has an option called "Format". You can move the red colored speakers around or change how many there are.
2) in the Patchbay, which is the area all the way to the left in the main timeline window, the 4th symbol from the left (looks like a right facing speaker) can be clicked on to 'Don't send to output" to temporarily disable playing that channel.


2021-01-03 18:37

reporter   ~0004449

yes, it would be wonderful if you could copy the left audio channel to the right. Good microphones sometimes have a safety channel in case of overload: the right channel is recorded 20 dB lower.
So how can you use only one (e.g.) the left one in Cinelerra?


2019-10-26 18:21

manager   ~0002343

Today GG started to see what this is all about and whether or not he can implement something. With limited understanding how the Audio speakers are currently working in the code and at least 1 broken speaker here, not sure of the outcome. Stand by for a further update.


2019-10-18 12:01

reporter   ~0002301

Yes, a right mouse button menu is maybe the simplest solution.


2019-10-18 09:14

reporter   ~0002299

If possible, another idea could be ...
1. RMB (Right Mouse Button) on Pan icon. (And here the RMB function would be appropriate)
2. A PopUp menu with 9 options is showed:
- Left Top
- Left Middle
- Left Bottom
- Center Top
- Center Middle
- Center Bottom
- Right Top
- Right Middle
- Right Bottom
3. And you choose by the list.


2019-10-17 20:16

reporter   ~0002297

These magnetic points are a good thing and very popular with video editors. I like to use them myself.
If you briefly pick up a magnifying glass you can see that an exact positioning can be read from numerical values. But we have to keep an eye on the other channels as well, like 5.1 and 7.1, etc.


2019-10-17 18:59

reporter   ~0002296

I was thinking about some type of "magnetic" points in the pan rectangle for the left, right and center position for easier pointing and to be sure about the exact position. Or some other simple tool or dialog box outside of the rectangle to set the "left", "right" or "center" position for each individual audio track.


2019-10-17 18:35

reporter   ~0002295

In the first turn, the zoom could be increased from currently 100 pixels to 160 pixels.
In addition, the font should be slightly enlarged and, if this is not sufficient, provided with a high-contrast semi-transparent background.

Issue History

Date Modified Username Field Change
2019-10-17 17:47 Lukas New Issue
2019-10-17 17:47 Lukas Tag Attached: GUI
2019-10-17 18:35 Olaf Note Added: 0002295
2019-10-17 18:59 Lukas Note Added: 0002296
2019-10-17 20:16 Olaf Note Added: 0002297
2019-10-17 20:53 Olaf Tag Attached: Pan
2019-10-18 09:14 IgorBeg Note Added: 0002299
2019-10-18 12:01 Lukas Note Added: 0002301
2019-10-26 18:21 PhyllisSmith Note Added: 0002343
2021-01-03 18:37 Michi Note Added: 0004449
2021-01-03 22:21 PhyllisSmith Note Added: 0004450
2021-01-04 09:42 fary54 Note Added: 0004451
2021-01-04 10:28 Michi Note Added: 0004453
2021-01-04 11:17 Michi Note Added: 0004455
2021-01-04 12:40 fary54 File Added: L_Mono to Stereo splitter.webm
2021-01-04 12:40 fary54 Note Added: 0004456
2021-01-04 12:59 Michi Note Added: 0004457
2021-01-04 15:31 Michi File Added: grafik.png
2021-01-04 15:31 Michi Note Added: 0004465
2021-01-04 18:03 Michi File Added: grafik-2.png
2021-01-06 21:15 Michi File Added: grafik-3.png
2021-01-07 10:45 Michi File Added: grafik-4.png
2021-01-07 12:54 Andrea_Paz Note Added: 0004487
2021-01-10 21:37 administrator Note Added: 0004500
2021-01-10 21:40 administrator Note Added: 0004501
2021-01-10 23:13 PhyllisSmith File Deleted: grafik-2.png
2021-01-10 23:30 PhyllisSmith File Deleted: grafik-3.png
2021-01-10 23:36 PhyllisSmith File Deleted: grafik-4.png
2021-01-11 18:55 PhyllisSmith Note Added: 0004507