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IDProjectCategoryView StatusDate SubmittedLast Update
0002798ardourbugspublic2009-07-28 21:352020-12-22 02:47
Reporterthe_CLA Assigned Tox42  
PrioritynormalSeverityminorReproducibilityalways
Status closedResolutionfixed 
Product VersionSVN/2.0-ongoing 
Target Version3.0 
Summary0002798: Wrong waveform display on second highest zoom level
DescriptionOn the second highest zoom level the waveform is displayed with an offset from the other zoom levels. In this test this offset was about 345 samples or 7 milliseconds (see playhead, marker and delta display), but it seems to vary a little. This was to observe since the higest zoom level was changed from 2 to 1 frame per pixel in revision 5117.

Steps to reproduce:

1. create a new session
2. import (or maybe record) some audio to a new track
3. examine the zoom levels
4. Ah, I can see it! ;)

Screenshots attached.
TagsNo tags attached.

Relationships

has duplicate 0003495 closedpaul Waveform seems to move around playhead at different zoom levels 
related to 0003513 feedback splitting a region seems to delay the second part by a few samples 

Activities

2009-07-28 21:35

 

highest.png (55,874 bytes)   
highest.png (55,874 bytes)   

2009-07-28 21:35

 

second-highest.png (58,020 bytes)   
second-highest.png (58,020 bytes)   

2009-07-28 21:36

 

third-highest.png (59,314 bytes)   
third-highest.png (59,314 bytes)   

nettings

2009-08-15 01:52

manager   ~0006530

i can reproduce this with current 2.0-ongoing, r5499. looks like worth investigating...

nettings

2009-08-31 20:20

manager   ~0006621

interestingly, the "rectified" waveform view is also broken in the second-highest zoom level (as of r5499)

the_CLA

2009-08-31 20:49

reporter   ~0006622

A few days ago I noticed that, too. Plus on highest zoom level the waveform suddenly switches from rectified to traditional view. But I'm not sure if this is an intended feature - maybe for findig zero crossings easier. *shrugs*

2009-08-31 20:50

 

rectified.png (3,272 bytes)   
rectified.png (3,272 bytes)   

screwtop

2009-10-17 05:46

reporter   ~0006716

I'm sure I've seen this bug affecting only some of the tracks in the session. I've also seen it affect the third-highest zoom level (but to a lesser extent) when zooming in from fully zoomed out. Zooming back out one click from the second-highest zoom level still shows the misalignment, but zooming back out from max zoom only shows a problem with the second-highest zoom level (the level-3 display then looks correct).

2009-10-21 14:31

 

ardour-2.8.3-5763_zoom_full-4.png (121,248 bytes)   
ardour-2.8.3-5763_zoom_full-4.png (121,248 bytes)   

2009-10-21 14:31

 

ardour-2.8.3-5763_zoom_full-3.png (121,301 bytes)   
ardour-2.8.3-5763_zoom_full-3.png (121,301 bytes)   

2009-10-21 14:32

 

ardour-2.8.3-5763_zoom_full-2.png (121,249 bytes)   
ardour-2.8.3-5763_zoom_full-2.png (121,249 bytes)   

2009-10-21 14:32

 

ardour-2.8.3-5763_zoom_full-1.png (120,845 bytes)   
ardour-2.8.3-5763_zoom_full-1.png (120,845 bytes)   

2009-10-21 14:32

 

ardour-2.8.3-5763_zoom_full-0.png (120,363 bytes)   
ardour-2.8.3-5763_zoom_full-0.png (120,363 bytes)   

screwtop

2009-10-21 14:34

reporter   ~0006843

I've attached some screenshots showing the problem affecting different tracks by different amounts, and also affected the third-highest zoom level.

seegwen

2010-05-02 13:45

reporter   ~0007758

Last edited: 2010-05-02 22:20

 Having the second highest zoom issue with 2.8.7 release. (negative offset)

edit: I can still reproduce it in rev 7044 amd64 build.

2010-07-16 22:57

 

zoom-issue.tar.gz (69,880 bytes)

Pablo_F

2010-07-16 22:59

reporter   ~0008454

Same problem in Ardour 2.8.11 from rev. 7387.
I have attached more screenshots (zoom-issue.tar.gz)
To my eyes, the problem is only in the second highest zomm level

colinf

2010-07-19 10:19

updater   ~0008483

It looks to me like the waveform is aligned correctly at the start of the region at all zoom levels, but at the second highest zoom level the waveform is drawn slightly too short to fill the space required.

Something funny in AudioSource::read_peaks_with_fpp(), perhaps?

nettings

2013-01-22 21:54

manager   ~0014564

This issue is resolved in 3.0-SVN.

Issue History

Date Modified Username Field Change
2009-07-28 21:35 the_CLA New Issue
2009-07-28 21:35 the_CLA File Added: highest.png
2009-07-28 21:35 the_CLA File Added: second-highest.png
2009-07-28 21:36 the_CLA File Added: third-highest.png
2009-08-15 01:52 nettings Note Added: 0006530
2009-08-15 01:53 nettings Status new => confirmed
2009-08-31 20:20 nettings Note Added: 0006621
2009-08-31 20:49 the_CLA Note Added: 0006622
2009-08-31 20:50 the_CLA File Added: rectified.png
2009-10-17 05:46 screwtop Note Added: 0006716
2009-10-21 14:31 screwtop File Added: ardour-2.8.3-5763_zoom_full-4.png
2009-10-21 14:31 screwtop File Added: ardour-2.8.3-5763_zoom_full-3.png
2009-10-21 14:32 screwtop File Added: ardour-2.8.3-5763_zoom_full-2.png
2009-10-21 14:32 screwtop File Added: ardour-2.8.3-5763_zoom_full-1.png
2009-10-21 14:32 screwtop File Added: ardour-2.8.3-5763_zoom_full-0.png
2009-10-21 14:34 screwtop Note Added: 0006843
2010-04-24 10:28 cth103 Category bugs => bugs2
2010-04-24 10:31 cth103 Category bugs2 => bugs
2010-05-02 13:45 seegwen Note Added: 0007758
2010-05-02 21:40 seegwen Note Edited: 0007758
2010-05-02 22:20 seegwen Note Edited: 0007758
2010-07-16 22:57 Pablo_F File Added: zoom-issue.tar.gz
2010-07-16 22:59 Pablo_F Note Added: 0008454
2010-07-19 10:19 colinf Note Added: 0008483
2010-10-07 20:49 oofus Relationship added related to 0003495
2010-10-31 13:11 cth103 Relationship added related to 0003513
2013-01-22 21:54 nettings cost => 0.00
2013-01-22 21:54 nettings Note Added: 0014564
2013-01-22 21:54 nettings Status confirmed => resolved
2013-01-22 21:54 nettings Resolution open => fixed
2013-01-22 21:54 nettings Fixed in Version => SVN 3.0
2013-01-22 21:54 nettings Target Version => 3.0
2013-01-22 22:19 nettings Relationship replaced has duplicate 0003495
2020-12-22 02:47 x42 Assigned To => x42
2020-12-22 02:47 x42 Status resolved => closed