Audio pauses introduced in ouput video file. #14

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opened 2018-06-19 12:21:23 -07:00 by gtsop · 4 comments

gtsop commented

2018-06-19 12:21:23 -07:00

(Migrated from github.com)

Very short audio pauses (we're talking about miliseconds) are introduced into the output file every 1-2 seconds in a 17sec rendered video.

Pulverize was set up as instructed in the README file (using the php version). The following command was used:

pulverize spot.blend 8

System info

OS     : Manjaro Linux
Kernel : 4.17
CPU    : i7-4790K
RAM    : 16GB
GPU    : Nvidia GTX 770

Blender info

Blender  : 2.79 (sub 4)
Output   : FFmpeg video | RGB
Encoding :
    Contain        : MPEG-4
    Video Coded    : H.264
    Output quality : Lowest quality
    Encoding speed : Realtime
    Audio Codec    : MP3
    Bitrate        : 192

Is there anything I can change to make this work?

Very short audio pauses (we're talking about miliseconds) are introduced into the output file every 1-2 seconds in a 17sec rendered video. Pulverize was set up as instructed in the README file (using the php version). The following command was used: ```pulverize spot.blend 8``` System info ============= ``` OS : Manjaro Linux Kernel : 4.17 CPU : i7-4790K RAM : 16GB GPU : Nvidia GTX 770 ``` Blender info ============== ``` Blender : 2.79 (sub 4) Output : FFmpeg video | RGB Encoding : Contain : MPEG-4 Video Coded : H.264 Output quality : Lowest quality Encoding speed : Realtime Audio Codec : MP3 Bitrate : 192 ``` Is there anything I can change to make this work?

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FraYoshi commented

2018-06-24 21:11:23 -07:00

(Migrated from github.com)

actually, the pauses occur where the split takes place. I see you have an i7. 17/8 = 2.125.

I solved this by exporting the audio separately and then joining it with FFmpeg. It is actually just a workaround.

actually, the pauses occur where the split takes place. I see you have an i7. 17/8 = 2.125. I solved this by exporting the audio separately and then joining it with FFmpeg. It is actually just a workaround.

gtsop commented

2018-06-25 04:12:32 -07:00

(Migrated from github.com)

actually, the pauses occur where the split takes place. I see you have an i7. 17/8 = 2.125.

Exactly my initial thoughts, but wouldn't everyone have the same problem?
Anyway, if your fix is working we could automate it by providing an extra option into the parameter JSON

> actually, the pauses occur where the split takes place. I see you have an i7. 17/8 = 2.125. Exactly my initial thoughts, but wouldn't everyone have the same problem? Anyway, if your fix is working we could automate it by providing an extra option into the parameter JSON

hperrin commented

2018-06-26 09:26:09 -07:00

(Migrated from github.com)

Hmm. That's a smart workaround. Maybe pulverize should be doing that. Are you rendering audio directly from blender? And is it fast?

hperrin commented

2018-06-26 09:27:42 -07:00

(Migrated from github.com)

Btw, this problem only happens on certain codecs. I've never had this problem on the recommended codecs (in the readme).