0001199: Audio analysis is slow

Carsten 2018-02-09 02:47 manager ~0002095	Can't confirm a general slowliness in 2.11.51, just opened a 50fps 13min MTS with ac3 and the full analysis incl. R128 took about 30s. However, recently I sometimes see the analysis process indicator begin with negative percentages counting down - like from -450 through -320 through -80, and then from 0 upwards, and only then the progress bar grows up. What is that? Carsten

Markus 2018-02-09 20:48 reporter ~0002116	Tested it again with a .mov file containing a ProRes Video stream and a AAC 2 CH. audio track. 16GB file, Audio Stream 14MB, but take 3 min to analyse. But this seems to be a FFMPEG issue, as Audacity nearly takes the same amount of time to load the audio.

Carsten 2018-02-09 23:45 manager ~0002117	I'll try with AAC as well. Carsten

Carsten 2018-02-10 01:04 manager ~0002122 Last edited: 2018-02-10 01:11	6min37s MP4 with stereo AAC 44100Hz audio, analysis incl. R128 takes 15s. Same format, about 1hr runtime, takes about 2min18s 4core HT 2.3GHz Same performance as in 2.10.5

carl 2018-02-12 20:55 administrator ~0002141	OK, I'll bump this to 2.13.x and maybe we can investigate more thoroughly there; sounds like there has probably been no regression.

Date Modified	Username	Field	Change
2018-02-09 01:51	carl	New Bug
2018-02-09 01:52	carl	Description Updated
2018-02-09 02:47	Carsten	Note Added: 0002095
2018-02-09 20:48	Markus	Note Added: 0002116
2018-02-09 23:45	Carsten	Note Added: 0002117
2018-02-10 01:04	Carsten	Note Added: 0002122
2018-02-10 01:10	Carsten	Note Edited: 0002122
2018-02-10 01:11	Carsten	Note Edited: 0002122
2018-02-12 20:55	carl	Target Version	2.12.0 => 2.14.0
2018-02-12 20:55	carl	Note Added: 0002141
2018-08-16 23:16	carl	Target Version	2.14.0 =>
2023-12-22 22:33	carl	Status	new => acknowledged