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IDProjectCategoryView StatusLast Update
0009294ardourbugspublic2023-04-03 14:51
Reporterthecross Assigned Tox42  
Status resolvedResolutionfixed 
PlatformDebian GNUOSLinuxOS Version(any)
Product Version7.3 
Summary0009294: Stem export feature exports one track as silent
DescriptionWhen I export two of the session tracks using the "stem export" feature, one output file is OK and the other one is silent.
Steps To ReproduceSession > Export > Export stem
Channels : tick the two channels to export and untick "apply processing".
Period : tick "session".
File format : Flac 24 bit, no analysis nor normalizing.
Finally select "Export".
Two files are produced but one is silent.
Additional InformationSee attached pictures :
"1-bug.png" shows that the two channels have audio content within the "begin" and "end" marks, but that one of the output files is empty.
"2-normal.png" shows the result obtained by exporting one channel by one.

Ardour 7.3.0 on GNU/Linux Debian 11.
Intel x86-64.
TagsNo tags attached.



2023-04-01 18:17


2-normal.png (103,249 bytes)   
2-normal.png (103,249 bytes)   
1-bug.png (103,164 bytes)   
1-bug.png (103,164 bytes)   


2023-04-01 21:11

administrator   ~0027526

I cannot reproduce this with a simple 2 track session as follows:

* new session
* add 2 mono audio tracks
* record-arm both tracks
* record + roll, record 20 seconds
* Session > Export > Stem Export
 - FLAC 24bit (not normalized, no silence trim/add, no meta-data
 - default session-timespan
 - export both tracks (Audio 1,2) without track/bus processing
 - disable "Analyze Exported Audio
 - disable "Re-Import Exported Audio"
 .. and export

Both files contain sound.

Can you provide a session which causes this issue? Is there anything in Menu > Window > Log


2023-04-03 14:51

administrator   ~0027533

I managed to track down the issue. It depends on the order in which tracks/channels are enabled for export.
Fixed in Ardour 7.3-174 2c4d1e011c

Issue History

Date Modified Username Field Change
2023-04-01 18:17 thecross New Issue
2023-04-01 18:17 thecross File Added: 2-normal.png
2023-04-01 18:17 thecross File Added: 1-bug.png
2023-04-01 21:11 x42 Note Added: 0027526
2023-04-03 14:51 x42 Assigned To => x42
2023-04-03 14:51 x42 Status new => resolved
2023-04-03 14:51 x42 Resolution open => fixed
2023-04-03 14:51 x42 Note Added: 0027533