View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0007096||ardour||bugs||public||2016-11-07 22:03||2016-11-29 10:42|
|Summary||0007096: Timestretch crashes Ardour|
|Description||Streching a stereoregion as "multitimbral mixture" crashes Ardour like this:|
RBEffect: source region: position = 3744000, start = 6630216, length = 168000, ancestral_start = 0, ancestral_length = 0, stretch 1, shift 1
StretchCalculator::calculate(): inputDuration 168000, ratio 1.14286, outputDuration 192000 (rounded up to 192082), df size 564, increment 298
total input increment = 168072 (= 564 chunks), output = 192082, ratio = 1.14286, ideal output 192083
(region total = 192082)
2 threads created
Speicherzugriffsfehler (Speicherabzug geschrieben)
|Steps To Reproduce||Use the time stretch tool, it happens occasionally but often enough to destroy any workflow.|
|Additional Information||Crashes and other more or less severe errors are making the timestretch tool a adventourous feature at best for about 10 years now...|
|Tags||No tags attached.|
Is this using an official build of 5.4?
I tried to reproduce this issue with 5.4 using the "Balanced multitimbral mixture" mode, stretching an audio region about 20 times between 1.05 and 2.5 times and could not produce a crash.
How occasionally does this occur for you?
Is it possible for you to download a nightly debug build and try to get a backtrace of the crash so we can determine the cause?
It happens very rarely but I use the timestretch often and thus it crashes way too often for me. As in: 2-3 times in 100h of working with Ardour.
I also tend to use the stretch extremely, 3-4 times the original length for special effects. But this time I only tried to lengthen a region by about 60%...
I will build a GIT checkout with debug symbols ASAP and try to reproduce it...
Any news on this?
The qm-dsp lib which used for time-stretching and bundled with Ardour was updated with Ardour 5.4-56-g485e31f (early Oct'16) and may fix this.
|2016-11-07 22:03||zettberlin||New Issue|
|2016-11-13 11:14||timbyr||Note Added: 0018949|
|2016-11-13 11:14||timbyr||Status||new => feedback|
|2016-11-13 20:02||zettberlin||Note Added: 0018953|
|2016-11-13 20:02||zettberlin||Status||feedback => new|
|2016-11-28 15:08||x42||Note Added: 0019086|
|2016-11-29 10:42||timbyr||Status||new => feedback|