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IDProjectCategoryView StatusLast Update
0010243ardourbugspublic2026-03-11 11:02
ReporterDieAllNetFlat Assigned To 
PrioritynormalSeverityminorReproducibilityalways
Status newResolutionopen 
PlatformMicrosoftOSWindowsOS Version11
Summary0010243: Audio engine mutes/drops output when toggling "Play Loop" transport mode during paused playback.
DescriptionWhen using "Play Loop is a transport mode", pausing playback inside the loop, toggling the loop mode off, and resuming playback results in a complete loss of audio output. The playhead continues to move visually, but the track goes completely silent, suggesting an issue with the audio buffer or engine state when the transport mode is switched mid-stream.
Steps To ReproducePrerequisites / Setup:

Go to Edit > Preferences > Transport.

Enable "Play Loop is a transport mode".

Set the Edit Point (dropdown in the toolbar) to "Playhead".

Steps to Reproduce:

Define a range in an audio track and set loop markers (Right-click > Set Loop from Selection).

Press L to activate the loop mode.

Press Space to start playback. (Audio plays normally).

Press Space again to pause. (The playhead stops somewhere inside the loop range).

While paused, press L to toggle the loop mode OFF. (The blue loop markers remain, but the transport mode is disengaged).

Press Space to resume playback from the current playhead position.

Expected Behavior:
The playhead resumes movement from its paused position, and the audio engine continues to output sound normally, now ignoring the loop boundaries.

Actual Behavior:
The playhead resumes moving, but the audio engine completely drops the signal. The track becomes entirely mute.
Additional InformationArdour 8.12.0
"Sonora Portraits"
(rev 8.12)
Intel 64-bit

Windows 11

Windows WASAPI
Tagsaudio engine, loop, play from playhead after loop paused, transport mode

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Issue History

Date Modified Username Field Change
2026-03-11 11:02 DieAllNetFlat New Issue
2026-03-11 11:02 DieAllNetFlat Tag Attached: audio engine
2026-03-11 11:02 DieAllNetFlat Tag Attached: loop
2026-03-11 11:02 DieAllNetFlat Tag Attached: play from playhead after loop paused
2026-03-11 11:02 DieAllNetFlat Tag Attached: transport mode