No audio wave in timeline (2)


#1

Hello,
I’m sorry to open a new topic, but the previous one was closed while the problem is not resolved for me.
I am under OSX El Capitan and I used SC 18.01.02
I upgraded to SC 18.11.02
All projects made with SC 18.01 and opened with SC 18.11 do not have the waveform in the timeline.
If I create a new project with SC 18.11 I still do not have the waveform in the timeline.
I have of course tested everything that was said in the previous topic, without success.

So I tried to replace the SC 18.11 “timeline.qml” file with that of SC 18.01, but of course it did not work. So I handed over the original SC 18.11 file and started SC for a new project.
The first video file opened and filed on the timeline has the waveform, but unfortunately not the following ones.
I save the project and if I open it again, it’s the same I only have the first clip that has the waveform.
If I run SC for a new project, none of the clips have the waveform.
Hopefully this will help you fix this bug.
cordially


#2

Shotcut version 18.11.18 is the latest (at the time of this post).

Make sure you are aware of the following settings.
Waveforms On
2018-12-04_09-07-48
Waveforms Off
2018-12-04_09-05-42

While you may or may not be aware of this, others reading may not be.

Using Windows 10 64-bit, Shotcut Version 18.11.18, I was not able to reproduce this issue. There was some issue with the audio waveforms a while back, but those have been fixed.

shotcut_2018-12-04_09-01-05


#3

Thank you for your reply.
I made a mistake in my first post, I installed SC 18.11.18
The box “Show Audio Waveforms” is ticked


So maybe this is a problem related to OSX El Capitan


#4

Maybe you have tried various files, maybe not.

Click on the 2nd file in your timeline, and go to Properties.
Shotcut only recognizes 1 audio track (2 channels) per video file. If you have 2 audio tracks, track 1 perhaps muted, while track 2 contains all of your audio, try switching to track 2 in this selection. By default on a Video file, track 1 audio is always selected.

I have the audio set to none, and the waveform goes away.
shotcut_2018-12-04_10-56-45

And if there is no audio at all, this is what will display
shotcut_2018-12-04_10-58-23


#5

I did not apply any filters on these videos
In this picture, they are the same clips but reversed.
Clip # 2 that did not have the waveform now has it since it is first.
Conversely, the # 1 clip that had the waveform no longer has it since it is second16
I only have one audio track on the clips

But I just discovered something that could help you
I run SC and select “open a file”
My first file is loading.
If I click on + (timeline) to put it on the timeline, it owns the waveform.
If I first click on + (playlist) and then on + (timeline) it does not have the waveform
But for the second file, whatever the order, the file never has the waveform


#6

I only have one audio track on the clips
59


#7

I tried to reproduce it following these steps, but it worked for me. If I cannot reproduce, I cannot fix it:


#8

Thank you Dan,
I understand that it is difficult for you to fix this issue.
I just downloaded SC 18.11.18 on my Macbook with OSX Yosemite, and it works.
So the problem is either OSX El Capitan or a file that SC needs and I do not have or that is corrupted. But I have to find which one. Maybe someone on this forum has an idea ?


#9

Maybe it is somehow related to the number of CPU threads (cores * hyperthreads) you have since background threads are responsible for waveforms and other things. But the number of background threads is intentionally limited by the number of CPU threads to prevent over-utilization. Yes, it could also be an OS version related issue. What are the CPU thread counts on your two machines. Meanwhile, I can try to reproduce it with this new information.


#10

Here is the information of my 2 computers

Informations matériel :

Nom du modèle : iMac
Identifiant du modèle : iMac7,1
Nom du processeur : Intel Core 2 Duo
Vitesse du processeur : 2,4 GHz
Nombre de processeurs : 1
Nombre total de cœurs : 2
Cache de niveau 2 : 4 Mo
Mémoire : 4 Go
Vitesse du bus : 800 MHz
Version de la ROM de démarrage : IM71.007A.B03
Version SMC (système) : 1.20f4
Numéro de série (système) : W880140EX86
UUID du matériel : 00000000-0000-1000-8000-001EC2077974

Vue d’ensemble du logiciel système :

Version du système : OS X 10.11.6 (15G22010)
Version du noyau : Darwin 15.6.0
Volume de démarrage : iMac SSD El Capitan
Mode de démarrage : Normal
Nom de l’ordinateur : iMac XXXXXXX
Nom de l’utilisateur : XXXXXXXXXXXXXX
Mémoire virtuelle sécurisée : activée
Protection de l’intégrité du système : activée
Temps depuis le démarrage : 2 minutes

Informations matériel :
Nom du modèle : MacBook Pro
Identifiant du modèle : MacBookPro7,1
Nom du processeur : Intel Core 2 Duo
Vitesse du processeur : 2,4 GHz
Nombre de processeurs : 1
Nombre total de cœurs : 2
Cache de niveau 2 : 3 Mo
Mémoire : 4 Go
Vitesse du bus : 1,07 GHz
Version de la ROM de démarrage : MBP71.0039.B0B
Version SMC (système) : 1.62f7
Numéro de série (système) : W80445KBATP
UUID du matériel : F886A803-4A1F-5B01-9235-C640A7500E11
Capteur de mouvement brusque :
État :Activé

Vue d’ensemble du logiciel système :
Version du système : OS X 10.10.5 (14F27)
Version du noyau : Darwin 14.5.0
Volume de démarrage : Yosemite sur HD
Mode de démarrage : Normal
Nom de l’ordinateur : MacBook XXXXXXXX
Nom de l’utilisateur : XXXXXXXXXXXXXXX
Mémoire virtuelle sécurisée : activée
Temps depuis le démarrage : 18 minutes